05-13-2004 07:43 AM - edited 03-02-2019 03:41 PM
R1 e0-----e0 R2
R1
loop0 192.168.10.1/24
e0 192.168.1.1/24
R2
e0 192.168.1.2/24
Run RIP between R1 and R2, R2 can get the route 192.168.10.0/24 via RIP, the default AD is 120.
run iBGP between R1 and R2, R1 advitise loop0 into BGP, and R2 got BGP route 192.168.10.0 like
r>i 192.168.10.0/24
there is a 'r' because the AD of RIP(120) is less then the AD of IBGP(200), it is normal or not?
after I changed AD of RIP on R2 to 205, everything is ok, it is necessary?
R1 and R2 are 2500, IOS is c2500-is-l.122-15.T12.bin,
Thanks
05-13-2004 08:08 AM
This is indeed normal. This just means that BGP couldn't installed the route in the RIB cause another route is already installed with a better admin distance. This wouldn't prevent the route to be advertised to eBGP peers.
Hope this helps,
05-13-2004 09:29 AM
Thanks a lot.
I want to ask one more question.
topology like
ospf area 0--R1---area 1---R2---area 2---R3
.......................R1--non-ospf--R2
Between R1 and R2, there are two links. one run OSPF, another run RIP or EIGRP or ISIS, R1 and R2 build virtual-link, if the link of area 1 broken, how R3 reach area 0 without static route?
Thanks
05-13-2004 09:42 AM
The virtual link will not stay up R1 and R2 don't see each other via area 1.
Hope this helps.
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