Pretty straightforward... In fact you will kick yourself... This used to get me too.
The TCP session comes from the outgoing interface. Have you noticed that every destination port on the SAME ROUTER EVERY SINGLE TIME is 179? But when you have update-source lox it seems to one time be on on router, and another time on the other? Have a look :) This would be one way of doing something like "ensure Rx is the TCP source with a port >1024" or something like that if you are ever asked. Cheers, Matt CCIE #22386 CCSI #31207 On 19 May 2011 14:19, Amit Jp <[email protected]> wrote: > Hi , > I am trying to understand this but cant get proper answwer from anyone . > Here is my diagram > R1 ___R2 > > both are running BGP 1 . and i use serial interface to form neighbor > relationship > And i also use debug output i get source ip as outging interface and > destination ip as the interface add of the remote end. > . > > > > Now i use loop0 on both routers > > R1 > > Router bgp 1 > neighbor 2.2.2.2 remote-as 1 > > R2 > router gp 1 > neighbor 1.1.1.1 remote-as 1 > > > > it doesnt form neighbor relationship . Ok as bgp uses outgoing interface by > default to form neighbor relationship. > > So i use update lo0 on just one router > Router 1 > > router bgp 1 > neighbor 2.2.2.2 update source lo0 > > > > > Here's my question to all > > > Why only use update source on one end of the router and not the other end , > neighbor still comes up as i use it on one end > the outgoing interface of the remote router interface is still serial 0 so i > need to change that remote end interfce from serial to loopback interface by > using update source command ,,,ISNt't it??? > > > > Thanks and regards, > > Amit Jp > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
