ospf in core and dis

maddy_kavitha · ‎04-20-2010

hi all,

I have enabled ospf between my core and dis switchesin lab setup. i have used /30 addressing. i have assigned vlan 1 ip in all core and dis in 30 range. ospf routing is happening in 10 and 20 network.

Now from my DIS switch i am not able to ping the vlan 1 ip of core 1 and 2.

I am not able to identiy wats the issue is.

Jon Marshall · ‎04-20-2010

maddy_kavitha wrote:

hi all,

I have enabled ospf between my core and dis switchesin lab setup. i have used /30 addressing. i have assigned vlan 1 ip in all core and dis in 30 range. ospf routing is happening in 10 and 20 network.

Now from my DIS switch i am not able to ping the vlan 1 ip of core 1 and 2.

I am not able to identiy wats the issue is.

When you say /30s do you mean you have configured the ports on the switches as "no switchport" and assigned IPs or that you have just created L3 vlan interfaces.

What does a "sh ip route" of vlan 1 network show ?

Can you explain how the core and distro are connected ie. what config ?

Jon

maddy_kavitha · ‎04-20-2010

hi jon

Yeah i've used ip address in the ports.

this is the output of sh ip route in core1

Gateway of last resort is not set

     10.0.0.0/30 is subnetted, 5 subnets
C       10.1.1.0 is directly connected, FastEthernet0/1
C       10.1.1.4 is directly connected, FastEthernet0/2
C       10.1.1.8 is directly connected, FastEthernet0/4
C       10.1.1.12 is directly connected, FastEthernet0/3
C       10.1.1.16 is directly connected, Port-channel 10
     20.0.0.0/30 is subnetted, 4 subnets
O       20.1.1.0 [110/2] via 10.1.1.1, 00:00:16, FastEthernet0/1
                 [110/2] via 10.1.1.18, 00:00:16, Port-channel 10
O       20.1.1.4 [110/2] via 10.1.1.5, 00:00:16, FastEthernet0/2
                 [110/2] via 10.1.1.18, 00:00:16, Port-channel 10
O       20.1.1.8 [110/2] via 10.1.1.9, 00:00:16, FastEthernet0/4
                 [110/2] via 10.1.1.18, 00:00:16, Port-channel 10
O       20.1.1.12 [110/2] via 10.1.1.13, 00:00:16, FastEthernet0/3
                  [110/2] via 10.1.1.18, 00:00:16, Port-channel 10
     30.0.0.0/24 is subnetted, 1 subnets
C       30.1.1.0 is directly connected, Vlan1

Also i have attached the diagram. pls find it. its a packet tracer file.