Ok, you win :) Pierre-Alex
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chuck Sent: Friday, March 01, 2002 8:32 PM To: [EMAIL PROTECTED] Subject: Re: VLSM and CIDR [7:37031] well, to continue to beat this dead horse ( like anyone cares about RIPv2 CIDR anyway ) Gateway of last resort is not set 172.17.0.0/24 is subnetted, 1 subnets C 172.17.1.0 is directly connected, TokenRing0 173.4.0.0/24 is subnetted, 1 subnets C 173.4.57.0 is directly connected, Loopback0 161.52.0.0/24 is subnetted, 1 subnets R 161.52.1.0 [120/1] via 132.31.99.8, 00:00:24, Virtual-Access1 132.31.0.0/16 is variably subnetted, 2 subnets, 2 masks C 132.31.99.8/32 is directly connected, Virtual-Access1 C 132.31.99.0/24 is directly connected, Virtual-Access1 C 192.168.0.0/24 is directly connected, Serial0 C 192.168.1.0/24 is directly connected, Serial1 C 200.0.0.0/8 is directly connected, Loopback101 R 201.0.0.0/15 [120/5] via 132.31.99.8, 00:00:11, Virtual-Access1 R 96.0.0.0/4 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 R 203.0.0.0/8 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 R 129.0.0.0/12 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 C 181.48.0.0/13 is directly connected, Loopback201 R7# note all the CIDR routes in the routing table, all learned via RIP. How? interface Loopback101 ip address 201.0.0.1 255.254.0.0 ! interface Loopback1001 ip address 203.0.0.1 255.0.0.0 ! interface Loopback1002 ip address 129.1.1.1 255.240.0.0 ! interface Loopback1003 ip address 100.1.1.1 240.0.0.0 ! router rip version 2 redistribute connected metric 5 network 132.31.0.0 network 161.52.0.0 network 201.0.0.0 no auto-summary you apparently do have to redistribute the CIDR routes into RIPv2. Silly me. Why wouldn't that be obvious? Chuck ""Chuck"" wrote in message news:[EMAIL PROTECTED].; > kinda in answer to your private message: > > http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ip_c > /ipcprt2/1cdrip.htm > watch the wrap > > according to this, Cisco's implementation of Ripv2 does indeed support CIDR > > On the other hand, getting this to work appears to be problematic. A check > of Doyle shows no CIDR example for Ripv2 A look though Large Scale IP > Network Solutions yields this interesting sentence: "RIPV2 is able to > support classless interdomain routes. It can propagate a classless route > through redistribution" > > I can't get a damn CIDR route to show up in the RIPv2 table no matter how > many hokey pokies I do. > > At this point I'm going to assume you have tried RipV2 and have had the same > frustration I just had - seeing no CIDR routes. This calls for a bit more > research. > > Chuck > > > ""Chuck"" wrote in message > news:[EMAIL PROTECTED].; > > I think you're trying to outsmart yourself. Can't be done!!! ;-> > > > > I showed you in my private reply the result of the EIGRP test I set up. > The > > answer was "no problem" > > > > I also know from long lab rat experience that it is not a problem with > OSPF. > > > > I have not tried with either IS-IS or Ripv2, but again, why not? > > > > there may be issues with older IOS code. Some vendor older models may not > > support it. But I have no reason based on my experience, to believe that > it > > is an issue with current IOS code. > > > > Chuck > > > > > > > > ""Pierre-Alex Guanel"" wrote in message > > news:[EMAIL PROTECTED].; > > > The statement that provoked my question is from RFC 1721. They say > > > > > > "Subnet masks are also necessary for implementation of "classless" > > > addressing, as the CIDR work proposes" > > > > > > thus the question "if a routing protocol supports subnet mask does that > > > automatically mean that it can do CIDR? > > > > > > ( I think the answer is no because CIDR means that you could have masks > > > stilling bits from the newtork ID and the router may not like this .... > I > > > also think that historically subnetting and Variable Length subnet > masking > > > came before CIDR. But those are just speculations. I don't have examples > / > > > references to support my arguments and I would like to know if I am > > correct.) > > > > > > > > > Thanks, > > > > > > Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37047&t=37031 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

