Ip Subnet Mask

address is the most common subnet mask used on computers connected to Internet Protocol (IPv4) networks. In the previous pages I spoke about IP Classes, Network IDs and Host IDs, the fact is that the Subnet mask is what determines the Network ID and Host ID portion of an IP Address. ip-calc for LibreOffice and OpenOffice Calc ip-calc for Microsoft Excel ip-calc for Google Sheets Online tools. A subnet mask is a number that defines a range of IP addresses that can be used in a network. Basically, you give the Subnet Calculator a range of IP addresses or CIDR notations and it calculates/generates a list of. The last address (all 1s) is the broadcast address of the network. An IP address is always combined with a Subnet Mask, and it is the Subnet Mask that determines which part of the IP address that belongs to the IP network and which part that belongs to host addresses. (It is not something you wear on your head to keep subnets out. Every ip address has a corresponding subnet mask. This calculator is designed to sort and merge multiple IP addresses/IP network blocks (consolidate adjacent and overlapping netblocks, remove duplicates, exclude another set of networks/IP's, sort the output). Select the "cmd. By understanding how errors in TCP/IP configuration affect network operations, you can solve many common TCP/IP problems. • The number of addresses in each subnet is 2. By default, in Class C IP Address, 24 bits are reserved for the network and 8 bits are reserved for the host. How to Find Your Subnet Mask. Given the IP address / Enter the information in the IP address field below. The remainder of the IP address identifies the unique devices on that network. You should be able to do these without any problems if you plan to work in networking or are studying for a certificate such as the CCNA. IP Converter Tools. A subnet mask is another group of dotted decimal numbers, representing a binary number that distinguishes which part of the IP address represents the network. Everytime I try to change my router settings it says, "IP address and gateway is not at same subnet mask!" Can anyone help me please!!!?!?. Như vậy, ta phải dùng cùng một Subnet mask cho toàn bộ mạng vật lý cùng chung một địa chỉ Internet. The IP address range is 169. 0, the default subnet mask for many computers and network routers. we just assigning a static ip address & subnet mask,gateway also. CIDR mask in IP version 4 is 32 bits long and is usually represented using dotted decimal form. The subnet mask is the classical way of representing which bits are part of the network portion of the address vs. If you can give me the correct answer with a few explanation I would be very grateful. If the APIPA protocol is disabled, the IP address of a Brother print server is 192. This calculator is designed to sort and merge multiple IP addresses/IP network blocks (consolidate adjacent and overlapping netblocks, remove duplicates, exclude another set of networks/IP's, sort the output). It alsochecks if an IP subnet overlaps with other IP subnet. Sometimes knowing more actually gets in the way. Second part consists of an online calculator for all of subnetting (addressing and subnetworking) values. Menghitung IP Address – Mungkin bagi Anda yang masih awam masih belum begitu paham mengenai apa itu IP address, Subnet Mask, ID, Broadcast, Host pada Komputer. 248 listed in binary: ip address: 01001100. subnet-delete Delete a given subnet. CCNA BOOST Chap 5. If there is nothing in the "Amount of a /64" column that means it is to miniscule or to massive to justify calculation. It also lists each IP address in the range and automatically does a Reverse IP Lookup for you. Thus, if I had an IP address of 10. This IP address may look pretty weird to you. Enter your IP address and play with the second netmask until the result matches your need. With CIDR we can use Variable Length subnet masks, or VLSM. A subnet mask number is used to determine which part of an Internet Protocol (IP) address is used by the host, and which part is used by the network. Netmask Inverse /CIDR Usable Size; 0. Generate IP address lists and determine subnet attributes. Free online utilities; Subnet Calc - compute network subnet (dotted decimal or CIDR notation) mask for IP address or range, or vice versa. Suppose a class C network has the subnet mask 11111111 11111111 11111111 11100000. For classless supernetting, please use the CIDR Calculator. A subnet mask defines which chunk of an IP address is the host ID and which portion is the subnet network ID. VLSM Subnet Calculator is intend for automate and simplify VLSM calculation process. If you don't like this stuff stick to origami or try this memory jogger - Binary, Decimal and Hexadecimal. 0 and how you would work out the range of ip address's on a subnet mask of 255. Advanced Subnet Calculator Help ensure that your IP addresses don't conflict with one another, and save time managing DHCP, DNS, and IP addresses Use our free Advanced Subnet Calculator to find available addresses, save time provisioning or reclaiming IP addresses, and increase network and application uptime. It also lists each IP address in the range and automatically does a Reverse IP Lookup for you. Hi I wonder if is there a way to get the subnet mask and default gateway (the IP I can get it) the way I'm getting the IP is the following: Dim clientIPAddress As String = System. Available Hosts per Subnet. Subnet Mask is a 32 bit number that identifies the subnet to which an IP Address belongs. IP_IsExistThis is a boolean function to check if one IP exists in an IP range (Subnet). However, if I run a network test using the "manual" setup (where I type in IP address, Subnet Mask, Gateway and Primary DNS) then the MAC address, IP address, Subnet Mask, Gateway and Primary DNS. Berikutnya kita akan mencoba melakukan subnetting untuk IP address class B. The 1's in our binary subnet mask represents the network portion of our IP address, and the 0's represent the hosts. An example of subnet IP. Subnet Mask Cheat Sheet 2 Subnets -- 126 Hosts/Subnet. Devices registered prior to that day and still manually configured to use the old router address and subnet mask would continue until December 2 2014, when support for the old values finally was retired. IP Subnet Mask. IPv6 is a complete and different animal as far as subnetting goes. (Subnet Mask) Now to find the network ID convert all the host bits of the IP address to '0', that gives us the Network Address:. Now you can clearly see that the subnet mask will decide which is the Network part, which is the Host part. 26 SereenPanda Misc. MadrasaTech Official. When you know IP address and mask number, you sometimes want to know subnet number, subnet broadcast address and range of valid IP addresses. 15 and a subnet mask of 255. When you set its ip, please keep the camera and your router or PC in the same subnet, in other words, keep the first three section of IP address the same. Check the new subnet mask with the command "ipconfig". Examples 209. Why did you change the subnet to 255. push(arguments)},i[r]. Set failed. NOTE 1: Required when the IP Address field is populated and the IPAI field is “4” or “M”, otherwise prohibited. A subnet mask is basicly a way to compare two IP addresses to check whether they are on the same network (subnet). For this it first extracts the first octet of the IP address using the method named ReturnFirtsOctet and then checks the first octet value with the IP4 class information and returns the corresponding subnet mask on match. The subnet mask is the one which identifies the Network Part portion of the IP address assigned to the host. Subnet mask (ซับเน็ตมาร์ค) คืออะไร สำคัญอย่างไร การแบ่ง IP address ออกเป็น. How to find IP addresses and subnet number in a few seconds. Subnet mask is used by the computer and router to determine the network and host portion of the IP address. Identify subnet parameters for a given IP address and subnet mask (or CIDR prefix). When it comes to troubleshooting, the more you know the better troubleshooter you are (in my option). is written as: 192. com under support and get the network calculator. Administration of large networks could be a very time-consuming work. IPv6 is a complete and different animal as far as subnetting goes. How to calculate Subnet Mask? Subnet Mask for IP Address is calculated by setting all the bits reserved for network ID and subnet ID to 1 and all the bits reserved for Host ID to 0. 192 or /26 which means there are 6 bits remaining for hosts 2^6 = 64; 64 -2 = 62 valid hosts per subnet, which meets the requirements. A subnet mask works like a filter with the mask identifying the IP address bits that represent the network ID with a 1, and the bits that represent the host ID with a 0. CIDR standardisierte auch die Variable Length Subnet Mask, wo ein Subnetz wiederum in Teilnetze unterteilt wird, indem die Netzmaske nochmals verlängert wird. Fatto ciò, dovrebbero comparire rapidamente tutti i dettagli relativi alla rete, con informazioni quali l’indirizzo IP del PC, la subnet mask e il gateway predefinito. 2/24, apa ini artinya? Artinya bahwa IP address 192. PowerShell Get IP Address and Subnet mask. Marked as answer by Allan48 Tuesday, August 14, 2012 2:38 PM. For example, 255. Second part consists of an online calculator for all of subnetting (addressing and subnetworking) values. Subnet mask is usually 255. IP addresses are assigned to networks in different sized ‘blocks'. If the device is the router, you can't also put your computer on that subnet. It can take a given IP address and check if it is in a range defined by a CIDR mask. IPv6 is a complete and different animal as far as subnetting goes. This division is entirely internal and hidden from all other organizations on the Internet. For classless supernetting, please use the CIDR Calculator. "The combination of ip address and subnet mask is invalid. In this article, we will cover a certain type of IP subnet mask – the /30. 252 6 32 30 8192 8190 3 fffffff8 255. IP Subnet Mask. subnetpool-create Create a subnetpool for a given tenant. An IP address is an address used in order to uniquely identify a device on an IP network. You have the block size. A network is called a supernet when the prefix boundary contains fewer bits than the network's natural (i. 1 / subnet mask 255. Thus, if I had an IP address of 10. If the exam question asks for the network and broadcast address of a host, for example, 192. Both, the IPv4 and the IPv6 specifications define private addressing ranges. many times i will try but same msg is showing. The subnet mask has a single purpose: to identify which part of an IP address is the network component and which part is the host component. Pengertian IP address Alamat IP (Internet Protocol Address atau sering disingkat IP) adalah deretan angka biner antar 32-bit sampai 128-bit yang dipakai sebagai alamat identifikasi untuk tiap komputer host dalam jaringan Internet. 0 prva dva okteta nam pokazuju u kojoj smo mreži, a druga dva koji smo nod na toj mreži. For example, our computer has an IP address 192. 127 subnet (see the previous step table). For filtering of IP packets, the net mask is used to designate a range of IP addresses to apply the filter to. 3) You should at least enter the default subnet mask for the Class you're using. IP Address Calculator calculates and find IP Subnet Mask on basis from given IP Address. IPv6 Subnet Calculator 1. A network is called a subnet when the prefix boundary contains more bits than the network's natural mask. subnetpool-delete Delete a given subnetpool. Every IP consists of four, 8-bit octets that range in decimal value from 0 to 255. ip-calc for LibreOffice and OpenOffice Calc ip-calc for Microsoft Excel ip-calc for Google Sheets Online tools. If the IP address is assigned without a subnet mask, the firewall will take it as /32 by default and create a host route in the routing table only. php This class can check if IP address is within a range. This subnet mask is known as subnet zero, and it is used when only one subnet is required or as the first of multiple subnets. Examples 209. To calculate the Network ID, you simply take any IP address within that subnet and run the AND operator on the subnet mask. Input IP-address and netmask. You have a network and you have hosts on the network (anything with an IP address is a host). Use this tool to identify if two IPv4 addresses are on the same network subnet. many times i will try but same msg is showing. An IP address is divided into two parts: network and host parts. As you can see, the four octets of the IP address align with the four octets of the subnet mask. 0 是路名 ! 而最後8 bit 是街名 !. 1 IPv4 Subnet Mask : IP Quantity : 157. MadrasaTech Official. Quizlet flashcards, activities and games help you improve your grades. I recently had a long list of IPv4 CIDR addresses and wanted to know how many hosts there were in total. It can also be called a classless IP addressing. This process can be repeated multiple times to create subnets of various sizes based on the number of hosts required in each subnet. A way to reach another person, computer, etc. kindly adwise me. Posted by Madan on Jan 5, 2011 / Labels: SMS and SCCM Tips and tricks , SMS. If the IP address is assigned without a subnet mask, the firewall will take it as /32 by default and create a host route in the routing table only. Why did you change the subnet to 255. Routers accomplish this by assigning subnet masks, a number that indicates where to look in the IP address to. Hi I wonder if is there a way to get the subnet mask and default gateway (the IP I can get it) the way I'm getting the IP is the following: Dim clientIPAddress As String = System. So in the subnet 255. 0 Now convert this to binary: 11111111. Subnet Mask a number that divides the IP address into network address and host address A subnet mask adds security. Enter your IP address and play with the second netmask until the result matches your need. 2 is assigned also a subnet mask 255. Subnet Cheat Sheet. You can specify subnetwork names instead of default. It is the key to mastering the IP subnetting process -Classful subnetting, classless (VLSM), CIDR, supernetting, -summarization, address aggregation - you name it -the customization of the mask is KEY Understanding the Custom Subnet Mask 28. We hope you find it as useful as we do. and is the default subnet mask for many computers and network routers. Cisco wildcard mask, host range and quantity of hosts. With CIDR we can use Variable Length subnet masks, or VLSM. Hence the IP Address starts from 192, it indicates it is a Class C address. Both addresses are always used together. IPv6 Subnet Calculator 1. The 1's in our binary subnet mask represents the network portion of our IP address, and the 0's represent the hosts. CIDR standardisierte auch die Variable Length Subnet Mask, wo ein Subnetz wiederum in Teilnetze unterteilt wird, indem die Netzmaske nochmals verlängert wird. 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. I do not know the IP or subnet mask. The IP address range is 169. 0 is a class C network address with a natural mask of /24. what ip-calc can do: - increment an IP address - IP address sorting - calculate a net mask or a wildcard (i. The host part then can be divided into a subnetwork (or a subnet), and host address, in case there is a need for additional subnetwork to boost performance and security of the network. Now that you know all about IP addresses, it’s time to discuss the subnet mask. You can specify subnetwork names instead of default. Takes an IP address and shows every possible subnet available that includes the IP. The first 4 numbers are indicated as the external network, while the 0 indicates the local network. IPv6 Subnet Calculator 1. A subnet of 255. How Much Time Does an Average Person Spend Online Each Week?. Hence the IP Address starts from 192, it indicates it is a Class C address. Let’s come back to our example with the IP 11. 41, with the capability to deaggregate network ranges. Now i will explain how to change these addresses if needed. What is Subnet Mask? If we recollect from the previous lessons, an IPv4 address has two components, the network part and the host part. Initially the network mask is shown according to IP ADDRESS Class for calculations of classful networks. Remember that after a custom subnet mask is defined, you have actually turned one big network address space into a number of smaller sub-network address spaces. after restarted the my system and i open network sharing option but ip address assigned to be automatcally. Obszerna ksiażeczka tcp/ip ,sieci. Client Bridge subnet must match the primary router. A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network address. A Full IP subnet cheat sheet in a table format for your day to day subnetting tasks. ipcalc takes an IP address and netmask and calculates the resulting broadcast, network, Cisco wildcard mask, and host range. We then step through a series of examples using VLSM to assign IP addresses to a network. Mask Hosts Usable Netmask Hex. Subnetting can improve security and help to balance overall network traffic. If you don’t have a network administrator or resident computer guru to provide this info for you, then we will assume that you have a small office or home network and that person is you. A subnet mask divides the IP address into the network address— ‘masking’ or hiding it — and host address. If you change the IP address, once you click Apply, you will need to enter the new IP address in your browser to get back into the configuration utility. 1 based on your IP address but it could be something else. PAN-OS can take the IP address assignment on the interface with or without a specific subnet mask. The default subnet mask is 255. This IP subnet mask calculator helps you in finding the answer to your question of 'How to calculate a subnet mask?'. The subnet mask for a /24 network is 255. This string is empty of the current row is for a host address (i. A subnet mask provides IP, routing protocol, and any other software that deals with addresses a way to determine the network ID and host ID. Salam bahagia teman-teman, semoga selalu dalam keadaan sehat. IP Address Converter: Enter the dotted decimal TCPIP Address: Enter the dotted decimal Subnet Mask: or Enter the number of bits in the subnetmask /. 6 (6 is the number of 0s) or 64. The wildcard is the inverse netmask used for access control lists (ACL's) in Cisco routers. This allows us some interesting possibilities. subnetpool-create Create a subnetpool for a given tenant. Skip to main content Quick Bytes IT Stuff Make the world a better place by sharing knowledge, ideas and anything that you. Subnet Mask=255. The subnet mask defines the subset of the IP address that is associated with the network. The 1's in our binary subnet mask represents the network portion of our IP address, and the 0's represent the hosts. php This class can check if IP address is within a range. This article is focusing on t he basics of Subnetting. A subnet mask allows you to identify which part of an IP address is reserved for the network, and which part is available for host use. 0 IP V4 SUBNETTING Terminology Subnets CIDR /32 255. The mask 255. It is the key to mastering the IP subnetting process -Classful subnetting, classless (VLSM), CIDR, supernetting, -summarization, address aggregation - you name it -the customization of the mask is KEY Understanding the Custom Subnet Mask 28. CIDR mask in IP version 4 is 32 bits long and is usually represented using dotted decimal form. many times i will try but same msg is showing. Menghitung IP Address - Mungkin bagi Anda yang masih awam masih belum begitu paham mengenai apa itu IP address, Subnet Mask, ID, Broadcast, Host pada Komputer. Your organization. This means that the first 24 bits of the IP address given are considered significant for the network routing. FIELDS 1 st octet 2 nd octet 3 rd octet 4 th octet. How Much Time Does an Average Person Spend Online Each Week?. To calculate the Network ID, you simply take any IP address within that subnet and run the AND operator on the subnet mask. Something called the "subnet mask" is used to assign some of the IP address bits to a subnet, while leaving some for the host/computer ID. Please note the yellow rows as each has special common use or notes. Administration of large networks could be a very time-consuming work. Convert CIDR to IP, subnet mask, network, broadcast addresses and many more calculators for IP addresses. A subnet mask works like a filter with the mask identifying the IP address bits that represent the network ID with a 1, and the bits that represent the host ID with a 0. If the APIPA protocol is disabled, the IP address of a Brother print server is 192. 83 would be filtered if a "/30" mask was applied to 192. Download; IP Subnet Calculator is a handy application for the Windows 8 users who need to estimate the maximum number of subnets and hosts for their network. This is evident to anyone who has gone back into the definition of an IP Subnet Boundary after creation and noticed (wondered even) why the subnet mask is no longer there as shown below. To calculate the Subnets IP Address you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. The next step is to determine the subnet mask required for creating the four subnets. Subnet Mask: A 32-bit number used to differentiate the network component of an IP address by dividing the IP address into a network address and host address; Network Interface Card (NIC): A computer hardware component that allows a computer to connect to a network. Now the tricky part is the Filter Pattern which is where you can specify a single IP address or a group of IP address wether it is a subnet or not. The host part then can be divided into a subnetwork (or a subnet), and host address, in case there is a need for additional subnetwork to boost performance and security of the network. However, the Oracle Solaris installation program and /etc/netmask file require you to set the subnet mask by using dotted decimal representation. The Subnet Mask The subnet mask in this case must represent the part the IP kernel needs to compare when checking for whether this is on the local network 255. For example, in a subnet with CIDR block 10. The 32 binary bits are broken into four octets (1 octet = 8 bits). Fatto ciò, dovrebbero comparire rapidamente tutti i dettagli relativi alla rete, con informazioni quali l’indirizzo IP del PC, la subnet mask e il gateway predefinito. VLSM Subnet Calculator is intend for automate and simplify VLSM calculation process. Routing between the two should not be that difficult but I'd defer to someone who has done this, I have not but do know a bit about the OSI model, TCP/IP and Networking technologies. has the command ip subnet-zero enabled on. Includes web-based Subnet, Supernet and network / node calculators. What's a /28? How many IPs do I get to use with a /26? Well, see the table below! Usable IPs is the Total IPs minus the Network and Broadcast IPs. Subnet mask is used to distinguish the network portion from host portion in an IP address. When subnetting, separating the network and host requires a special mechanism called a subnet mask. Total length 114 characters. Không phải là tất cả các mạng đều cần có Subnet và vì thế không cần sử dụng Subnet - Trong trường hợp này người ta. with the default subnet mask of 255. The professor, a windows vpn subnet mask Chinese legal immigrant, says of the 1 last update 2019/08/23 criticism: Bring it 1 last update 2019/08/23 on. Valid CIDR masks binary form starts with single or multiple ones (ones part) followed by stream of zeros (zeros part). Menghitung IP Address – Mungkin bagi Anda yang masih awam masih belum begitu paham mengenai apa itu IP address, Subnet Mask, ID, Broadcast, Host pada Komputer. The wildcard is the inverse netmask used for access control lists (ACL's) in Cisco routers. Now simply add by 32 until you get to a subnet higher than the. The broadcast address is the last IP address in the subnet i. If you use routing then it may not work because the VPN client subnet may be unknown to the target subnet. In general, do not change the subnet mask. They know this information using the “Subnet Mask”. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. How to Find Your Subnet Mask. A single subnet mask limits the number of valid IPs for a specific network. Accordingly, one may think that the subnet ID is 172. A classful addressing follows the general rule that has been. 25, subnet mask of 255. This distinction is a relative distinction. You can also use it to determine the subnet addresses, taking into account the IP address and the subnet mask. Free subnet mask IP calulators including a network/node calculator, IP address converter, subnet mask converter and a subnet mask inverter. The subnet mask for class C IP addresses is 255. However, you can easily change this IP address number to match with the IP address details of your network. Therefore, the default subnet masks will always have 255s or 0s when expressed in decimal notation. The IPv6. Subnet masks, like the IP address itself, are 32 bits in length. Online IP Subnet Calculator - description of a subnetting related terms in IP version 4, like a LAN, IP address, subnet mask, CIDR, address ranges, broadcast and so on. A subnet mask is a number that defines a range of IP addresses that can be used in a network. 1 based on your IP address but it could be something else. Lho kok bisa seperti itu? Ya, /24 diambil dari penghitungan bahwa 24 bit subnet mask diselubung dengan binari 1. A subnet mask, which contains a binary bit pattern of ones and zeros, is applied to an address to extract the network ID for purposes of determining whether an address is on the local network. Không phải là tất cả các mạng đều cần có Subnet và vì thế không cần sử dụng Subnet - Trong trường hợp này người ta. IP address 192. The wildcard is the inverse netmask used for access control lists (ACL's) in Cisco routers. However, when I try it, I get and error: Can not assign network address as IP address. Not Subnet Mask 255. IP Converter Tools. How to find IP addresses and subnet number in a few seconds. A subnetwork or subnet is a logical subdivision of an IP network. It is called a subnet mask because it is used to identify network address of an IP address by perfoming a bitwise AND operation on the netmask. subnet-delete Delete a given subnet. 255 1 Subnet Mask Addresses Wildcard 0. For classless supernetting, please use the CIDR Calculator. To calculate the Subnets IP Address you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. The host address is the last number in the group of four that makes up our subnet. The intelligent IT brains who designed the TCP/IP system devised a way to borrow some of the "bits" from the host ID to create a subnet address. I do not know the IP or subnet mask. Say I have the following Info in the cells: Cell (A) has the IP addresses eg. When this packet arrived to R2: R2 will take the first 20 bits from DA, which is 10000000. The subnet mask is used to allow computers to determine whether the addresses of other computers they wish to communicate with are on the local network or on a remote network. CCNA Training – Resources (Intense) One would compare an IP address to a wildcard mask to see if that IP address matches what the operator is looking for. All the subnet mask amounts to is moving the boundary between the part of the address that represents a "network" and the part that represents a "host. It is not recommended. IP_IsExistThis is a boolean function to check if one IP exists in an IP range (Subnet). Perhaps the most recognizable aspect of subnetting is the subnet mask. IP Addressing. 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. Then, enter the Subnet Mask. A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network address and host address. hosts subn/c subn/c subn/b subn/b bits hex-mask dec-mask strict strict 2 64 62 16384 16382 2 fffffffc 255. You can set a fixed LAN ip for the camera. For example, in a subnet with CIDR block 10. In this example each range has 14 usable addresses in it. To use the IP Subnet Calculator Enter your IP address and subnet mask details in the subnet calculator below. The host part then can be divided into a subnetwork (or a subnet), and host address, in case there is a need for additional subnetwork to boost performance and security of the network. So, here, the first 24 bits (First 3 octets) are network bits and the last 8 bits (Last octet) are the host bits. • Subnet Zero, which contains all 0s, can be used sometimes. Furthermore, it doesn't limit the size to 16M, 64k or 256 IP nrs. Since classes A, B and C divide the network ID from the host ID on octet boundaries, the subnet mask will always have all ones or all zeroes in an octet. If the IP address was printed on paper we could hide the last byte by placing a paper mask over the number with three holes. Should two routers use the same subnet mask? By centrino207 · 9 And also you cannot have two computers using the same IP address but with subnet mask you can. Subnet masks (IPv4) and prefixes (IPv6) identify the range of IP addresses that make up a subnet, or group of IP addresses on the same network. gateway (single IP address) subnet mask IP range (5 consecutive IP addresses) My problem is that I don't know what the network IP address is for. 0001, as the key to search its routing table. The Subnet Mask The subnet mask in this case must represent the part the IP kernel needs to compare when checking for whether this is on the local network 255. A subnet route is created for each of the IP ranges associated with a subnet. Sometimes knowing more actually gets in the way. 0) voor het netwerk id wordt gebruikt en het laatste (192. The router needs network address and subnet mask to find out whether the incoming IP packet has to be routed to any of its subnetwork. 2 is assigned also a subnet mask 255. The subnet mask specifies the range of the ip addresses in a group.