Cisco Catalyst 4506 Layer 3 Switch needs 2 gateways

I'll keep it simple. We have a client with multiple VLAN's on a 4506 switch. They want to have 1 VLAN access the internet using a different gateway than the rest (different circuit entirely).

I thought it might be possible to set a gateway in the VLAN interface, but there is no command to do so, just ip address. How else can we accomplish this with no other equipment?

Thank you,
jconklin-ansinc-netAsked:
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Ken BooneNetwork ConsultantCommented:
You need to use PBR to accomplish this:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/20ew/configuration/guide/pbroute.html

Basically you are looking at the source address of the particular sender.  So in your case it would be the ip address range in vlan 1.  You will want to set it up so that if vlan 1 is talking to any other internal subnets you will not alter its next hop ip address, but if it is talking to anything else you will alter the next hop ip address to the other gateway.
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Soulja53 6F 75 6C 6A 61 Commented:
You will need to use Policy Based Routing. You will create an ACL to match the source traffic coming from the vlan in question and then set an action that will set next hop to the alternate circuit. I could type out what you need but this is already documented:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/46sg/configuration/guide/pbroute.html
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Soulja53 6F 75 6C 6A 61 Commented:
Lol!
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jconklin-ansinc-netAuthor Commented:
Exactly what I was looking for! Thanks both. How do I score this? Soulja seems to have come very close and I don't think in 3 minutes could have come up with a similar but not identical link. Or is it first come first served? Moderator?
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Soulja53 6F 75 6C 6A 61 Commented:
Just split the points.
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jconklin-ansinc-netAuthor Commented:
kenboonejr- are you good with splitting the points? I'm rarely on here and don't know the rules, but you did answer first.
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Ken BooneNetwork ConsultantCommented:
Yes I am fine with that.  This kind of thing happens a lot.  Believe it or not some people actually get miffed about it.  It's just two guys providing the answer at the same time - no worries. Good luck to you!
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