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Webcast-Catalyst9k
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4900M w/x4908-10ge connect to gig port on another switch

Hello and thanks in advance for any help. Probably missing something real easy!

We just got a 4900M with 2 of the x4908-10ge half cards.

I am trying to connect it to a gig copper port on a 3560G which is currently our "core" switch. I have used the "hw-module module 3 port-group 4 select gigabitethernet" command to set the port to gigabit. The "1g" lights are on 4908. I have set a vlan 1 address that is on the same subnet as vlan 1 of the 3560G, and put the port in trunking mode. Shouldn't that be all I need to do for it to be accessible from vlan 1? Vlan 1 is not shutdown. I can do a "sh vlan" on the 4900M and it shows our vlans. I can do a "sh cdp neighbors" on each switch and they each show the other. What am I missing? Does it have something to do with vrf?

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3 REPLIES
Green

4900M w/x4908-10ge connect to gig port on another switch

Dirk,

If you are trying to access the 4900 from a an ip addrees that is not on vlan 1 then the 4900 will need a default gateway to answer back via.

!

int vlan 1

ip addres 10.10.10.100 255.255.255.0

no shut

!

ip default-gateway 10.10.10.1

!

Where 10.10.10.1 is a router or svi in vlan 1 somewhere upstream.

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
New Member

4900M w/x4908-10ge connect to gig port on another switch

Thanks for the response, Alex.

Yes, I had put in the gateway (which is the 3560G), and they are both on Vlan 1. Didn't make a difference.

New Member

4900M w/x4908-10ge connect to gig port on another switch

One of my peers figured it out after dealing with this on some 1142 wireless APs.

If the switch has IP routing turned on you have to use the "ip route" statement, not default-gateway!

Thanks for looking.

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