This application will help you find all IP addresses, MAC addresses and shared folders of computers on your wired or wireless (Wi-Fi. This is mostly useful in kibana, where all queries are sent at query_string queries. In order to make certain that the Cloud Security Service works correctly in your environment, please make certain that your firewall configurations allow the types of traffic necessary. Instances use these addresses to communicate with other Google Cloud Platform resources and external systems. You can easily find IP address for your Roku device without a. 1' End IP Adress - '10. * and is Chinese IP. Customers that have implemented private Cloud Enforcement Nodes in their environment: you may need to take into account additional address ranges not represented here. You can check by searching for "SQL server management studio" in windows. The method breaks up the range into standard IP ranges and finds their masks. This technique is useful for looking up a date in a range of start and end dates (a la vlookup for date ranges) too. Reporting: Adding Range Extender - IP Address Problems This post has been flagged and will be reviewed by our staff. IP address range and automatic detection of network configuration. Go to Office 365 URLs and IP address ranges for a detailed and up-to-date list of the URLs, IP addresses, ports, and protocols that must be correctly configured for Teams. What's my IP address, how to find and check my IP address. 0/8 or ip_address:10/8. Because you're about to learn something that confuses almost anyone trying learning about IP addresses. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. It also supports lookup of MX or NS DNS records for multiple domains. arpa for IPs version 6 ), Hostname, ASN, Nameservers, Timezone etc. In fact, "192. Whois-service is a service that allows to retreive information about the location of IP addresses, servers or websites. You may use 'traceroute' command to find clues to the location of the IP address. 290, by which it can be located within a network. Class B addresses have their first octet in the range 128 to 191 (binary address begins with 10). How to Find IP Address of Facebook. Hello friends, today I will explain how to remotely get the IP address of any computer. Windows Update Servers IP Address Range Could anyone advise what IP Address range is used by windows update, we need to add these into our firewall to allow our servers outbound access. 0/24 ? I'd like to have pfSense handle DHCP for all of my VPSs -- and have it hand out an DHCP address in the 10. Scans addresses and ports in any range and exports results in many formats. IP-Tools can save obtained information into text file or create HTML reports. Beschreibung. Using some very basic tricks, we can find the IP address of any remote computer and then you can start hacking into the remote system for things like port scanning and finding vulnerabilities. No host name is associated with this IP address or no reverse lookup is configured. Use these tools to help you when making networking. IP's in the 192 range are, as you say, private, meaning they refer to a machine on your local network. Usually it’s easy to find the owner of an IP address, but how can you find the IP address(es) registered by one specific company ?. Very large end customers may have there own ARIN allocations. 1 IPv4 addresses. Note that an IP Address range is in CIDR format and may include many individual IP Addresses in the specified network. 74' select * from ip_address_inventory where ip_address between '10. Once you have installed it, simply open the app. There are different ways to represent an IP range depending on the purpose you have in mind and whether you're communicating with humans or computers. To specify the pool of IP addresses that the router assigns: 1. IP conflicts occur when 2 or more devices have been allocated the same IP address on one network. com has address 204. This data can be used by various agencies to find the exact owner of any IPv4 or IPv6 address. Please stay tuned and thank you for using ADF!. To do this, we can use a netmask or standard slash notation to specify a range of IP address. IP Address Location Lookup Find IP Address is designed to provide you information about a given IP Address. Did you configure the custom analyzer for your ip field prior to indexing your data? And if you don't mind me asking, why do you need a custom analyzer? You could search for IPs in a certain range by using wildcards like client:192. json file on your system. IP Addresses. 0/24 for example. We want to prevent harmful effect from scan and this is reason why we added limits for usage: limit per IP and limit per destination. GUI version of built in command prompt ping. Results of the ping is save on drive d at a file named pingx. Start/ NPL Ranges Owned by. This is mostly useful in kibana, where all queries are sent at query_string queries. Firewall Configuration Requirements. Disabling external IP access for VM instances. With this feature searching for ip ranges would be much easier and convenient. The information is stored into different databases. Find the Range Let's look at a standard Class C private network using the 192. This means that it allows 2^14 networks and 2^16 hosts per network. The latter (216. The IP cameras used in the longest range camera systems have very high performance sensors that provides at least 2 Megapixel resolution, as well as good low light performance. IP-Tools can save obtained information into text file or create HTML reports. IP range(s) for Barracuda Cloud Protection Layer - posted in Barracuda Email Security Gateway: Barracuda Essentials for Email Security has added a new IP range, 209. But if you read on, you'll see it doesn't have to be confusing. Instantly Locate Any IP Address This free online tool allows you to see the geographical location of any IP address. Range blocks are technical restrictions applied through Special:Blockip to a group of IP addresses that prevent them from editing, creating new accounts, sending email through the wiki interface, et cetera. Now imagine there are several hundred IP's not responding. That’s the topic we’re exploring today. 255 Well-known multicast addresses, control channels. Try it out. When you know IP address and mask number, you sometimes want to know subnet number, subnet broadcast address and range of valid IP addresses. Using some very basic tricks, we can find the IP address of any remote computer and then you can start hacking into the remote system for things like port scanning and finding vulnerabilities. I cannot seem to find an expression for a Cluster attribute in Get-View. Enter an IP address to search its geolocation. IP Multicast address ranges All multicast addresses can easily be recognized because they start with the bit pattern "1110". Now, there is no IP-address defined. Use the Reverse IP tool to find domains sharing the same IP address or subnet. Powered with multi-thread scan technology, this program can scan hundreds computers per second. There are different ways to represent an IP range depending on the purpose you have in mind and whether you're communicating with humans or computers. You can also prepare a set of down rules, save them into second file /etc/iptables. Given an IPv4 address and the IPv4 network mask (the network mask can also be derived from a network mask length or host mask), you can determine much information about an IPv4 network: Network Address, Network Broadcast Address, Total Host Addresses, Total Usable Host Addresses, First Usable Host Address, and Last Usable Host Address. A command via the computer will allow you to determine the private IP address that has been assigned to your router. Classless address schemes (CIDR; see Chapter 2) are increasingly the rule rather than the exception when IP address ranges are assigned to organizations. Reliable and free network scanner to analyse LAN. Combined with the Google Maps technology, you can easily find the location of any IP Address. The subnet calculator implements a classful / classed IP addressing scheme where the following rules are adhered to: Class A addresses have their first octet in the range 1 to 126 (binary address begins with 0). IP ranges to CIDR Converter. However, for sites on the Internet, numbers are assigned by a central authority, the Network Information Center (NIC). In common ways, you can find these by convert the IP address with mask number to binary and perform boolean AND but that takes too much time. The simple way to use this is to pass a list of IP ranges as aaa. any help,?? Thanks Joe. 1 is a valid IP address. 0, then select Optional Mask from dropdown. com offers free software downloads for Windows, Mac, iOS and Android computers and mobile devices. One is a group of computers on a single physical network segment; the other is an IP network address range that is allocated by a system administrator. To find out your PC's IP address, you use a command called, ipconfig, showed below: Changing IP Addresses To connect to an IP camera and do initial setup you might need to change your IP address to be on the same network as the camera. com @resolver1. Using lookup, it still does not filter out those that are not in a range. Here’s a short Python snippet that generates a list of IP addresses based on IP range. For example, an IP address conflict can also occur if someone manually assigns an IP address to a device and that address is already in use, or exists within a pool of addresses that can be assigned by a DHCP server. We utilize this to search the hop point IP ranges originally used by APT1 and identify continued potential malicious activity. Windows Update Servers IP Address Range Could anyone advise what IP Address range is used by windows update, we need to add these into our firewall to allow our servers outbound access. No host name is associated with this IP address or no reverse lookup is configured. 5) or work with list of hosts and IP addresses. Find if public IP address belongs to AWS service. Disabling external IP access for VM instances. x even though there are public web servers in that range. The IP address is: 35. IP scanning is the ongoing IT task of analyzing a business network to discover IP addresses and identify relevant information associated with those IP addresses and devices. Network IP address range. To find your nearest Azure datacenter, use Azure Speed Test. The simple way to use this is to pass a list of IP ranges as aaa. Without an IP address networking and IP tracking would not be possible. Even if you kept a good record of those assigned IPs, there are times when you want to find all IP addresses of networked devices. IP geo location tools FREE. Well, our online IP lookup tool will simply reveal the numbered answer to What Is My IP Address. GeoIP2 City Results IP Address. A WhoIs Lookup is a tool that will give you pertinent information about the owner of the IP address. We recommend using the site ip4. Re: Range extenders IP address. The comparison is based on the collected data from the geolocation providers. Enter up to 25 IP addresses separated by spaces or commas. Be sure to keep all of your dynamic IP ranges listed in PBL! To remove just part of an IP range, first remove the old PBL Zone listing and then use the "Add listing to PBL Zone" link to add the subnet(s) you want listed back into the PBL Zone. Host is a DNS lookup utility that resolves a host to an IP. IP conflicts occur when 2 or more devices have been allocated the same IP address on one network. that can help to keep important details of all Servers and Workstations up to date. IP range(s) for Barracuda Cloud Protection Layer - posted in Barracuda Email Security Gateway: Barracuda Essentials for Email Security has added a new IP range, 209. I need code that returns the IP range from the subnet and mask. I am looking for a PS script that will get all computers in a specific IP range (i. This application looks up the IP address of the domain name provided, and matches it against the published list of IP address ranges used by the compute services in Microsoft Azure and Amazon Datacenters. 0 /19 and I want to know the the network range of my 15th subnet. These could be IP addresses, datetimes (show times for a single station), zipcodes, etc. , so each packet must contain the source IP address, destination IP address, and other data in the header to be successfully delivered. IP based reverse DNS lookups will resolve the IP addresses in real time, while the domain name or hostname search uses a cached database (see below for details). However, as with many tasks in the world of PowerShell, there are several ways to. For example - Start IP Addres - '10. I have looked around the internet and am having problem finding code for this. NSLOOKUP or Reverse DNS (rDNS) is a method of resolving an IP address into a domain name, just as the domain name system (DNS) resolves domain names into associated IP addresses. Juul employs more than 80 lobbyists in Washington and various state capitals, according to a Private Internet Access Ignore Ip Range source familiar with its advocacy operation. it is working for the most part however some of them as in post #4 are returning N/A even tho. x even though there are public web servers in that range. 0/24 for example. linux Here's a bash one-liner to find all the allocated IP ranges for an Automous System (ASN) given an IP address. , so each packet must contain the source IP address, destination IP address, and other data in the header to be successfully delivered. If the button is up, the range is interpreted as a regular one. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. The following utility calculates the network and broadcast addresses that a given IP address is associated with. How to Scan an IP Network Range with NMAP This tutorial marks the beginning of a series of network security and penetration testing articles that I will be posting on this website. IPNetInfo is a small utility that allows you to easily find all available information about an IP address: The owner of the IP address, the country/state name, IP addresses range, contact information (address, phone, fax, and email), and more. Network IP address range. i need to find start IP and End IP of the Range 2. The subnet mask for the network ID. Find The IP Address Of Your Router Using Your Android Device Android does not provide a built-in way to find your router's IP address like on Windows, Mac, or iOS. You may notice some. The range of IP addresses is 128. Using lookup, it still does not filter out those that are not in a range. Reverse DNS Lookup Discover the reverse DNS entries for an IP address, a range of IP addresses or a domain name. Data and information passes through from one device to another after identifying the IP address' of both sender and receiver. Alternatively, discover IP ranges of AWS services and regions for whitelisting. We recommend using the site ip4. Note that an IP Address range is in CIDR format and may include many individual IP Addresses in the specified network. The table below summarizes the pricing structure for Public IPs. 1 IPv4 This page will calculate all valid subnets and. Reliable and free network scanner to analyse LAN. Often databases are used with web-based interfaces and recording the IP address of the end user can assist with debugging, marketing, bandwidth planning and collation selection to name a few. 1' End IP Adress - '10. Utilities can retrieve information from a single host, from all hosts within specified range of IP addresses (ex. Nothing fancy, but could come in handy if you ever need it somewhere in your code. Alternatively, discover IP ranges of AWS services and regions for whitelisting. Click the Firewall app. Internet tools. Learn more about our API and database here when you visit our website and get what you need with our free downloads today. , so each packet must contain the source IP address, destination IP address, and other data in the header to be successfully delivered. A RIR is an organization that manages the allocation and registration of Internet number resources within a particular region of the world. Index table Main memory Small search group P e t c hi n g On-chip memory IP address Hash table SSG cache Mask Length Hash function Figure 1: Basic process of the IP lookup 3. the start and the end IP in the range. DHCP automatically assigns Internet Protocol (IP) addresses to the computers on your network if your network supports it. A command via the computer will allow you to determine the private IP address that has been assigned to your router. Because you're about to learn something that confuses almost anyone trying learning about IP addresses. cloud services. Find all the IP ranges on an ASN. Ultra-thin and always connected. Disabling external IP access for VM instances. How do I make changes to my IP addresses (IPs) in EBSCOadmin? IP addresses are "Internet Protocol" addresses, or numeric addresses assigned to servers and users connected to the Internet. You are currently viewing LQ as a guest. AWS IP Ranges - Find AWS Service IP Addresses Online. This range is where most private IP addresses fall, which is why the default IP address for most Linksys, D-Link, Cisco, and NETGEAR routers is an IP within this set. Nmap ("Network Mapper") is a free and open source utility for network discovery and security auditing. Other than being able to scan local area networks for shared folders, it can even search for shares over the internet. Typical home networks use IP addresses that start with 192. If you need an internal IP address to persist beyond the life of the instance, you can reserve a static internal IP address. Use a Mask which is a 32-bit binary number that gives the first address in the block (the network address) when bitwise ANDed with an address in the block. Ping to do this. An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. we just setup HCI-Integration to SAP ERP an now need to limit incoming traffic to SAP Cloud IP ranges. Let's say the gateway IP address would be 192. 1 toward the connected computers and a WAN IP address (public IP address) toward the ISP. I need to find the range name and subnet for the IP address from the list of ranges. IP addresses are currently 32-bit binary strings which are normally seen by humans (e. This means they cannot be reached via the internet. And even if it is on their premises, it may have a different IP range as the rest of the network. An ip field can index/store either IPv4 or IPv6 addresses. IP Address Classes and Ranges Explained with Subnet Mask Get new software reviews, VMware, Desktop Virtualization, Windows, Linux OS, PC troubleshooting and networking software, web host, register and buy domain guides. WHOIS – Lists contact info for an IP or domain Port check – Tests if TCP port is opened on specified IP Reverse lookup – Gets hostname by IP address Proxy checker – Detects a proxy server Bandwidth meter – Detects your download speed from our server Network calculator – Calculates subnet range by network mask. We recommend using the site ip4. Internet protocol, or IP addresses, are numeric codes used by computers to route messages to one another. com has address 204. Reporting: Adding Range Extender - IP Address Problems This post has been flagged and will be reviewed by our staff. At the scheduled times, IP address range scanning adds the submitted ranges to your scanning queue. 131) is an address within a IP range. I could just set the whole class C range like so, XXX. Created by @richorama at @two10degrees. By giving a second netmask, you can design subnets and supernets. 100 in the B column (first entry). Typical home networks use IP addresses that start with 192. Is this possible? Would pfSense be assigned 10. RFC1166 "INTERNET NUMBERS" list of assigned IP addresses is a very out-of-date list of IP address ranges. While the utilities we mentioned are indeed useful for IP mapping and network discovery, they can fall short when you need to find the complete IP ranges a company owns. It also supports lookup of MX or NS DNS records for multiple domains. Anyone know if they're real Baidu IPs or not? IP: 119. Convert CIDR to IP ranges. The IANA WHOIS Service is provided using the WHOIS protocol on port 43. Well, our online IP lookup tool will simply reveal the numbered answer to What Is My IP Address. Sentry is served from a single IP address for all web traffic and all event accepting. Whether you’re looking to charge anywhere or find premium protection for your device, your tech is in safe hands with Belkin. 0 How you can find out the name and IP address of the AD domain controller on your network. The XML file now breaks down the IP ranges as follows: "" = Includes all IP's for that service across all regions in the applicable cloud ". Determines your IP address and shows information (host, location, whois) about any IP address entered. IPv6 blocks are available. Specializing as an IP Finder, our IP Address location finder combs through an accurate IP database to find any IP through Geolocation and present it to you on the map to your right for your research needs. Microsoft Azure > You should be able to find your Sendgrid IP by logging into the Sendgrid account, refer to the link below:. In all regions, lock down traffic to and from your Internet gateway to the IP ranges in Table 1-1: All Regions - for all services. gl/SQjBuH Do. Look up the Geo location ( Geo IP / GeoIP ) of any IP Address with this IP locator tool, also known as an IP tracker and IP tracer. 2 is a class B (128-191) with Netid=134. For example, an IP address conflict can also occur if someone manually assigns an IP address to a device and that address is already in use, or exists within a pool of addresses that can be assigned by a DHCP server. AWS IP Ranges - Find AWS Service IP Addresses Online. When you know IP address and mask number, you sometimes want to know subnet number, subnet broadcast address and range of valid IP addresses. Log in to your GoDaddy account and open your product. One example is myspace. Find out what oganization an IP address is assigned to in RIPE (Europe) e. The data source is IP2Location DB1 LITE database. By using public IP addresses, your traffic can be routed via the Internet. Ping to do this. x even though there are public web servers in that range. Every device that is connected to your network will have its own private IP address. These are private IP addresses, but both would have the same public IP address. But if you read on, you'll see it doesn't have to be confusing. If you search the web, you’ll probably see some of these following reasons: Using a dedicated IP in regards to networking allows you to visit your website via its IP address (since it the only domain mapped to that IP). Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). This allows the router to transmit the proper information to the correct device. RegEx: Find IP Addresses in a File Using Grep Posted on Tuesday December 27th, 2016 Saturday March 18th, 2017 by admin Here are some regular expressions that will help you to perform a validation and to extract all matched IP addresses from a file. Looks up to 10 IP addresses at the same time. Right-click the Start icon. Go to Office 365 URLs and IP address ranges for a detailed and up-to-date list of the URLs, IP addresses, ports, and protocols that must be correctly configured for Teams. Note that an IP Address range is in CIDR format and may include many individual IP Addresses in the specified network. Number Resources. 45, so its network address is 134. I need to find the range name and subnet for the IP address from the list of ranges. Configure not just subnets but any IP range you're looking to discover and specify a separate scanning schedule for each range. 255] It would be great if we could do: ip_address:10. However, for the benefit of those that may not have a sophisticated firewall program, I'll show you an easy way to track down a hacker. If you can change the IP address of your camera, you can put it within the same lease range for your network. With this feature searching for ip ranges would be much easier and convenient. I've discovered that I need to allow for port TCP 4070, but I still need to know Spotify's public IP Address(es) that correspond to these ports. 102 for IP Address, which is what winipcfg shows, which I believe is the address assigned by the router. Common questions are, "what is my Azure Web App, Azure Mobile App (insert your type of Azure App Service here) outbound IP address"? What IP addresses do I need to whitelist for Azure? Even if you determine it through a network trace or firewall log, you will notice it can change. Internet protocol, or IP addresses, are numeric codes used by computers to route messages to one another. 74' It should result only 74 rows, but it is result all the range till '10. Automated IP address management tools such as SolarWinds ® IP Address Manager (IPAM) are designed to scan for a subnet in a network and record the IP address status, MAC address, and hostname changes made to each IP address in that subnet with the time stamp. 131) is an address within a IP range. This tool is commonly used for investigating IPs found in server logs. The range of IP addresses is 128. You could also just leave this part of the syntax blank to have it activate range lookup, but for the purposes of this tutorial, we'll be explicit about what type of lookup we want. any help,?? Thanks Joe. Find The IP Address Of Your Router Using Your Android Device Android does not provide a built-in way to find your router's IP address like on Windows, Mac, or iOS. We also provide a wide range of business and technology solutions including legal document services, filings, retrieval, web and database services. I need to implement for IPV4 and IPV6. IP ranges to CIDR Converter. IP addresses are currently 32-bit binary strings which are normally seen by humans (e. 96 or say 10. I have gotten so far as to get the output of the VM Name and IP, but cannot seem to get the cluster portion to work. In Windows, you can do plenty of things using command line. 1/24, home, 255. the start and the end IP in the range. Cardinal is not a law firm, does not practice law, and provides no legal opinions. This utility can be very useful for finding the origin of unsolicited mail. Your dataset has an important property: If there is a match, it will be the maximum startIPNum that is just below the IP address you are searching for. We have a total of 126 usable networks and 16,777,214 usable. Simple IP/IP Range Ping. Batch Script for nslookup range of IP Address 1 | P a g e Overview The purpose of this document is to resolve DNS for a range of IP Address. Index table Main memory Small search group P e t c hi n g On-chip memory IP address Hash table SSG cache Mask Length Hash function Figure 1: Basic process of the IP lookup 3. org you can find Domain, location and search for additional information from any IP address or Domain Name such an reverse DNS ( using inverse address in-addr. RFC1166 "INTERNET NUMBERS" list of assigned IP addresses is a very out-of-date list of IP address ranges. Find all the IP ranges on an ASN. Have a look in the archives for the new version 0. 255' which is not expected Please help. Use caution when setting filters to exclude these private address ranges. IP-based Geolocation is mapping of an IP address or MAC address to the real-world geographic location of an Internet-connected computing or a mobile device. Now that I have the IP, I can run whois on it to find its NetRange. As these addresses are auto-assigned, they should not be used for private networks and should not be statically configured on hosts. 254, making a total of 254 valid addresses. Our software and services protect against more risks at more points, more completely and efficiently, enabling confidence wherever information is used or stored. Currently there are 2 formats of IP addresses - ipv4 and ipv6. You can do it in a more interesting way by using raw_input to assign IP directly from user instead of writing it. What to do: Enter the IP address you're curious about in the box below, then click "Get IP Details. BingBot IP Ranges Updated. Purchase researched, clean, and usable IP address fully vetted by our expert IP researchers. Right-click the Start icon. Complete list of IP address ranges in China. Sentry is served from a single IP address for all web traffic and all event accepting. One is a group of computers on a single physical network segment; the other is an IP network address range that is allocated by a system administrator. I can ping or remote to any of the system on the other networks but the scan doesnt find them. Block or allow by country, continent or bogon addresses. To learn how to create and manage IP addresses for your resources, read Reserving a static external IP address. Use this list of IP address ranges to ensure that traffic to your servers does not bypass Symantec. The PTR information is informal only and it may mostly be true, but sometimes not. Additionally a second target range has been added to the target list. 0 I have seen some posts that suggest the first 64 address are reserved (for what I do not know), and that the typical address the RG is set to is 192. 0 subnet with subnet mask 255. 0/24, but that includes IP addresses that should not have access. Just input the IP address and you will be shown the position on a map, coordinates, country, region, city and organization. Please note that we do not provide any personal information. The original IP scanner for Windows, Max and Linux. Originally, all the IPv4 address spaces was managed directly by the IANA. It is also possible to hand out leases for DHCP clients using the RADIUS server; the supported parameters for a RADIUS server is as follows:. The XML file now breaks down the IP ranges as follows: "" = Includes all IP's for that service across all regions in the applicable cloud ". IP datatypeedit. IP Address Tools Online We offer a vast range of IP address tools to discover details about IP addresses. MyLanViewer Network/IP Scanner is a powerful Netbios and LAN/Network IP address scanner for Windows, whois and traceroute tool, remote shutdown and Wake On LAN (WOL) manager, wireless network scanner and monitor. Instances use these addresses to communicate with other Google Cloud Platform resources and external systems. Configure not just subnets but any IP range you're looking to discover and specify a separate scanning schedule for each range. 74' It should result only 74 rows, but it is result all the range till '10. So I hope there is a way to lookup ip address, subnet mask, gateway, and dns all at (2 Replies). - Static IP range for Azure Integration Runtime so that you can whitelist specific IP ranges for ADF as part of firewall rules. Instead of issuing a real IP address to every host on your network, you can issue a private address and translate the private address to a public one when you communicate with the Internet. This tool will provide you with the IP Address owners contact information. IP Geolocation tool helps you find the approximate geographic location of an IP address along with some other useful information including ISP, TimeZone, Area Code, State etc. Each class allows for a range of valid IP addresses, shown in the following table. Modifying IPv4 Address Ranges. Customers that have implemented private Cloud Enforcement Nodes in their environment: you may need to take into account additional address ranges not represented here. Simple IP/IP Range Ping. When you subnetwork, each subnetwork requires its own, unique IP network number and broadcast address - and these have to be valid addresses from within the range provided by the IP network that you are sub-networking. 1 or others.