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intervlan routing

Hi

We have recently purchased 4506 switch and a L3 module. We have configured the switch SC0 interface with an ip address subnet mask

set interface sc0 1 10.18.10.100/255.255.255.0 10.18.10.255

set ip route 0.0.0.0/0.0.0.0 10.18.10.200

in the L3 module we have done the below configuration

interface GigabitEthernet3

no ip address

no ip directed-broadcast

no ip mroute-cache

no negotiation auto

interface GigabitEthernet3.1

encapsulation dot1Q 1 native

ip address 10.18.10.200 255.255.255.0

no ip redirects

no ip directed-broadcast

no ip mroute-cache

the problem is we are not able to ping from SC0 interface to L3 ip address configured above visa versa.

what is that missing in this can you pls help me.

2 REPLIES
Bronze

Re: intervlan routing

You have defined Gig3.1 as a trunk and given it and address like it is a single vlan. Which way do you want it?

Gold

Re: intervlan routing

Not sure about the 4506 chassis and the L3 module, but on the 6506 chassis with Sup2/MSFC2 and the hybrid CatOS/IOS software load (Catalyst OS for L2, Cisco IOS for L3), we use virtual LAN interfaces instead of physical GigabitEthernet interfaces for the L3.

Try this out on the L3 module (Cisco IOS) and see if it works for you:

! Remove the IP address from your GigabitEthernet3.1 interface:

interface GigabitEthernet3.1

no ip address 10.18.10.200 255.255.255.0

! Create the VLAN1 interface, assign the IP address to it, and enable it:

interface VLAN 1

ip address 10.18.10.200 255.255.255.0

no ip redirects

no ip directed-broadcast

no ip mroute-cache

no shutdown

Try your test pings between SC0 and L3 IP address on VLAN1 interface.

If it works, save the config. Consider defining VLANs and assigning ports as access or trunk ports under the Catalyst OS, and handle the L3 part through Cisco IOS using VLAN interfaces.

Hope this helps.

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