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Author Topic: 5520 - IP Routing Vlans  (Read 478 times)

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Offline Andy

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5520 - IP Routing Vlans
« on: September 15, 2011, 11:35:24 AM »
Hi everyone.
Heres one for you.

Say I have 3 Vlans each with there own IP on a single 5520.

VlanA - 10.100.1.0 / 255.255.255.128 (G/W 10.100.1.126)
VlanB - 10.100.1.128 / 255.255.255.128 (G/W 10.100.1.254)
VlanC - 10.100.2.0 / 255.255.255.0 (G/W 10.100.2.254)

IP Forwarding enabled.

Is there a feature/command to stop/block routing between vlans A and B?

So only A and C      &     B and C can route to each either? but prevent A and B talking?

just wondering as they are all LOCAL routes.

Thanks for your help.
Andy



Online Flintstone

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Re: 5520 - IP Routing Vlans
« Reply #1 on: September 15, 2011, 11:44:32 AM »
Hi Andy,

As soon as you turn IP forwarding on, then the default is to route between all active subnets/Vlans.

It should be possible to use the QoS ACLs to block data between A and B though?

CheerZ

Offline Andy

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Re: 5520 - IP Routing Vlans
« Reply #2 on: September 15, 2011, 11:48:39 AM »
Cheers Flintsone, I'll look into this.

Thanks
Andy