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I have a CIDR block I advertise over BGP, 162.212.188.0/22. I am utilizing this full /22 CIDR block on a single VLAN interface on my internal 6509 core switch. On the 7204VXR I had configured a "hold down" route for the 162.212.188.0/22 BGP advertise...
I have a 6509 with a vlan confifured as shown below. I want to supernet the two /23 networks to a single /22, but if I change the interface to be 'ip address 162.212.188.3 255.255.252.0' OSPF stops advertising the network to other routers in the same...
Thanks for your help, i found the problem. It was not that OSPF was not advertising, the 7206VXR is doing BGP to the internet. and the 162.212.188.0/22 route is one of the BGP advertised prefixes. This meant that there was a "hold-down" null0 route f...
With the two /23's configured I get:6509:OSPF Router with ID (172.25.25.6) (Process ID 666) Router Link States (Area 0) LS age: 381 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 172.25.25.6 Advertising Router: 172....
this router is an OSPF neighbor to a 7206vxr on Vlan 99. That router is the one that stops seeing the advertisement if I change the Vlan masks from 255.255.254.0 to 255.255.252.0.So I have it working as configured below.6509:Vlan 6 ip address 162.212...
My question is completely an OSPF question.If I configure my Vlan as:ip address 162.212.188.3 255.255.252.0Then the OSPF neighbors to this router do not get the advertisement for the 162.212.188.0/22 route. It only works with a /23 or longer mask.Tha...
