VLAN creation problem in cisco L3 switch

Unanswered Question
Oct 22nd, 2009


i have configuration problem with VLAN creation in L3 switch.

test bed is following:-

1)two cisco routers are connected back-to-back in data center.

2)7 to 8 locations are connected with each of router on leased line.Then further 4-5 locations are connected with leased line.Means the WAN network is tree type network up to 4 levels.

3)OSPF routing is configured with multiarea configuration and with ospf authentication.

4) one cisco router is connected with cisco L3 switch, in which i have to configure VLANs of diffrent subnets for servers and PCs.

Kindly help me in configuration level, so that all remote locations can communicate with all VLANs in L3 switch.

I'm new with cisco switch.



I have this problem too.
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ohassairi Thu, 10/22/2009 - 01:31

in L3 switch you have G1/0 connected to the router.

you can configure this interface as a L3 one, then give it an IP @ (same subnet as G0/1 in router):

sw#configure terminal

sw(config)#interface G 1/0

sw(config-if)#no switchport

sw(config-if)#ip address x.x.x.x y.y.y.y

sw(config-if)#no shut

then create your VLANS and assign IPs to their L3 interfaces.

for example:

sw(config)#vlan 2


sw(config)#interface vlan 2

sw(config-if)#ip address e.e.e.e t.t.t.t

sw(config-if)#no shut

then configure ospf


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