Well, let me start by saying that with only a class C and the amount of hosts you specified, you are really pushing it, get more address space. This way you will have to put a bunch of secondarys on the routers ethernet interfaces, but it will work. This is assuming that the point to point circuits in each office will be numbered out of another block, or will use IP unnumbered, and that the numbers that you gave are for hosts, and that for the gateway address we would add one to the number given. The only thing I couldn't work out was location C, could only come up with 47 addresses for hosts there. Hope this helps, ugly as it may be. There are other ways to do this, none of them are very nice.
172.133.205.0/25 location A 126 host addresses, 125 excluding gateway 172.133.205.128/27 location A 30 host addresses, 29 excluding gateway 172.133.205.160/29 location A 6 host addresses, 5 excluding gateway 172.133.205.168/30 location A 2 host addresses, 1 excluding gateway 172.133.205.172/30 location B 2 host addresses, 1 excluding gateway 172.133.205.176/28 location B 14 host addresses, 13 excluding gateway 172.133.205.192/29 location B 6 host addresses, 5 excluding gateway 172.133.205.200/29 location C 6 host addresses, 5 excluding gateway 172.133.205.208/28 location C 14 host addresses, 13 excluding gateway 172.133.205.224/27 location C 30 host addresses, 29 excluding gateway -----Original Message----- From: Andy Hutchinson To: [EMAIL PROTECTED] Sent: 11/30/2001 9:37 AM Subject: Subnetting [7:27808] Can anyone help ! I have been assigned by our Head Office a Class B address (Let's say 172.133.205.0) with a subnet mask of 255.255.255.0 which gives me 254 hosts available. However i have to split this between 3 locations like so : Loc A : Minimum Addresses Required 160 (HQ) Loc B : Minumum Addresses Required 16 Loc C : Minumum Addresses Required 48 Loc B & C will each have a router that connects to a router at Loc A. Any ideas on how this can done ? Thanks Andy Hutchinson Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=27847&t=27808 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
