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ospf in core and dis

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.

2 REPLIES
Hall of Fame Super Blue

Re: ospf in core and dis

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

Community Member

Re: ospf in core and dis

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.

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