Poison Reverse

EdTheLad

I just made an observation and was wondering if anybody knows about this being a feature or not.
I have 2 routers running Ripv2, RouterA and RouterB
When i enable a "debug ip rip" on RouterA i can see it's receiving a poison reverse from RouterB for the classful adress which is being advertised by RouterA. This is all good as i have read by default RIP suports split horizon poison reverse.
Now i configure RouterB with no auto-summary and go back to RouterA to check the debug output.I was expecting to see all the individual subnets coming back with a poison reverse but to my surprise i dont get any.
So the question is when you configure auto-summary does this remove the poison reverse funtionality or could this just be my IOS version?

patelhari

yes when u enable auto summary it will disable the poison reverse function.

Yankee

that doesn't sound correct to me. The two should have nothing to do with each other.

Yankee

EdTheLad

Actually originally i tried this on my 2500 which gave me this problem.
When i went home i tryed on my 2600 with newer IOS and everything worked fine! So it was an IOS issue.