cisco 7600 issue in router bgp network no mask is showing

[Mahendra Bisht]

ROM: System Bootstrap, Version 12.2(17r)S4, RELEASE SOFTWARE (fc1)
BOOTLDR: Cisco IOS Software, c7600s72033_rp Software (c7600s72033_rp-ADVIPSERVICESK9-M), Version 12.2(33)SRE7a, RELEASE SOFTWARE (fc1)

router bgp 55879
 bgp router-id 115.248.114.229
 bgp cluster-id 1945669861
 bgp log-neighbor-changes
 neighbor 115.248.144.230 local-as 45415
 neighbor 124.155.244.241 remote-as 55879
 !
 address-family ipv4
  no synchronization
  network 124.155.240.0 mask 255.255.255.0
  network 124.155.242.0 mask 255.255.255.0
  network 124.155.243.0 mask 255.255.255.0
  network 124.155.244.0 mask 255.255.255.0
  network 124.155.245.0 mask 255.255.255.0
  network 124.155.246.0 mask 255.255.255.0
  network 124.155.247.0 mask 255.255.255.0
  network 124.155.248.0 mask 255.255.255.0
  network 124.155.249.0 mask 255.255.255.0
  network 124.155.250.0 mask 255.255.255.0
  network 124.155.251.0 mask 255.255.255.0
  network 124.155.252.0 mask 255.255.255.0
  network 124.155.253.0 mask 255.255.255.0
  network 124.155.254.0 mask 255.255.255.0
  network 124.155.255.0 mask 255.255.255.0
  network 202.179.86.0
  network 202.179.87.0
  network 202.179.89.0
  network 202.179.90.0

Please help

[mlund · Accepted solution]

Hi

If the subnetmask is the normal ip-net mask it will not be shown, that is normal.

For subnets or supernets the mask will show up in the config

example

network 10.0.0.0 mask 255.0.0.0 will be shown as "network 10.0.0.0"

network 10.10.0.0 mask 255.255.0.0 will show up as is written

Your net 124.x.x.x is a class A net and the normal subnetmask for class-a is 255.0.0.0

You have subnetted that class-a to smaller subnets, that why the mask is shown

The network started with 202 is all class-c networks and the normal mask for class-c is 255.255.255.0, thats why the mask is not shown for this network

/Mikael

[Mahendra Bisht]

Mikael,

Thanks a lot. i got it. its working now.

Mahendra