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Cisco 2821 Vlan cleanup

Currently we use a Cisco 2821 at the gateway for all the vlans and for the vlan routing. It also is our internet endpoint for vpn and tunnels. We are currently running a slew of dell 6200 series switches that we are replacing with cisco 2960's, and we also have 2 new 4900 series that are now going to handle all the vlans. My question is what do i need to do to the 2821 to clean up the things it don't need anymore. Do i need any new routes to point to vlans on the 4900?

Thanks

attached are the configs.
occh-scrub.txt
Core-4900-1---20110922-scrub.txt

Soulja

Yes you will basically need routes added on the router to point to the different vlan subnets on the new switch.

jasonmichel

ASKER

they would have to point to the .1 address>

for example vlan 32 is 10.15.32.x

so

ip route 10.15.32.0 255.255.255.0 10.15.32.1

is that correct?

as far as cleanup, is it just as simple as removing all the subinterfaces currently on there for the vlans?

ASKER CERTIFIED SOLUTION

Soulja

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Soulja

And yes, you will create the SVI's on the switch to correlate with the subinterfaces, then remove the subinterface on the router.

jasonmichel

ASKER

why wouldn't you make the next hop the correlating svi on the 4900? or at that point it doesn't matter as long as it hits one of them?

Soulja

How would it get to that specific SVI if it doesn't know how to get there?

See you will have to treat the router like a host somewhat. It's sitting in the 32 vlan, so it needs it's next hop to be the svi of the 32 vlan in order to get to the other vlans.

jasonmichel

ASKER

Ah that makes sense now

jasonmichel

ASKER

hey any chance you'd be available for some remote help? can you give me a way to contact? obviously paid of course.

Soulja

Shoot me an email at truthja @ gmail . com and we can go from there.

jasonmichel

ASKER

ok sent you an email