Team,
Was working on BGP backdoor on routerb. Routera is advertising the 3.3.3.0/24 via eigrp 23 to routerb (the _____ representing Ethernet). Routera is also advertising that same prefix via ebgp to routerb (the === marks represent the serial link). No biggie, so I threw the network 3.3.3.0 mask 255.255.255.0 backdoor) command on routerb and Voila, routerb decided to use the route learned via eigrp (ad=90) rather than the route learned via ebgp (ad=20). ___Eigrp 23___ | | 3.3.3.0/24---routera======routerb (ebgp) I then decided I was going to play around with redistribution. So I made routea stop advertising that 3.3.3.0/24 prefix to routerb via ebgp. No problem, routerb still knew about 3.3.3.0/24 via its Ethernet. I went into the bgp 2 process on routerb and did a redistribute eigrp 23. After about 90 seconds, I didnt see the 3.3.3.0/24 route in routerbs bgp table. I though what the and looked for any typos (considering Ive been studying for 11 hours so far) but didnt see any. I did however see that I forgot to take out the backdoor statement from the previous exercise. I took that out and about 15 seconds later I got this message (after turning on debugging of course) BGP(0): nettable_walker 3.3.3.0/24 route sourced locally So I took a look in the bgp table and saw r2#sh ip bgp BGP table version is 16, local router ID is 22.22.4.1 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next Hop Metric LocPrf Weight Path *> 3.3.3.0/24 25.25.25.3 409600 32768 ? My question is, is this a bug that if you have that backdoor in there, BGP will not redistribute? The only thing I changed in my config was that line and then it worked. While I study, Im compiling a list of gotchas I need to remember for BGP. Anyone else done this, maybe we can compare notes? Thanks team! Tim Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=36191&t=36191 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]