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Home > Forums > Communications Rack > Networking > Extreme Networks networking solutions Forum

VLAN Help...Not sure how to configure

Read More Threads Like This One

mzima (ISP)

20 Oct 07 15:08

Hi guys,

Okay this is (substituting local IPs in for live IPs) my setup:

vlan1: ipaddress 192.168.1.197 mask 255.255.255.252 gateway 192.168.1.196

vlan2: ipaddress 192.168.1.209 mask 255.255.255.248 gateway 192.168.1.208

My uplink is vlan1 (ports 1,3-24) and I have a server connected to vlan2 (port 2). The way that the IPs are assigned to me (without vlanning), I used to use 192.168.1.1 as the default gateway.

With the vlanning set up like that, I can't connect to anything (which makes sense, since something or other has to reach 192.168.1.1 since that's the gateway to my uplink), but I don't know how to fix that.

Can someone point me in the right direction?
Thanks.

ExtremeTek (Vendor)

26 Oct 07 9:34

After you create the VLANs you have to enable IP forwarding in order to forward packets between the VLAN

enable ipforwarding

Netomaniac (TechnicalUser)

9 Nov 07 16:19

It looks like your default gateway is not in the same subnet. You will have to make sure that 192.168.1.1 is in the same VLAN subnet as VLAN 2 for the Extreme to route the traffic.

I go with ExtremeTek, you need to enable IP forwarding in both the VLAN's.

Or change the IP address of your server to 192.168.1.208.

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