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BGP question posted 06/29/2003
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Hi, 
a quick question for BGP....
R7 and R4 are directly connected and running BGP in between...
R7 has three loopback interfaces who are 150.100.0.7/24, 160.100.0.7/24, 170.100.0.7/24
In order to let R4 see these routes...under R7's bgp configuration i put

network 150.100.0.7 mask 255.255.255.0
network 160.100.0.7 mask 255.255.255.0
network 170.100.0.7 mask 255.255.255.0

But when i do show ip bgp route at R4, these three routes are showing

r4#sho ip route bgp
B    170.100.0.0/16 [20/0] via 172.17.59.238, 00:00:17
172.17.0.0/16 is variably subnetted, 9 subnets, 5 masks
B       172.17.0.0/16 [20/0] via 172.17.59.238, 00:00:17
B    160.100.0.0/16 [20/0] via 172.17.59.238, 00:00:17
B    150.100.0.0/16 [20/0] via 172.17.59.238, 00:00:17

Why these three routes's mask change from /24 to /16? Both R7 and R4 has ip subnet zero configured...


Thanks a lot!

Yunjie