C5 Communications Between 2 VLAN's

Stan411 — Thu, 09 Jul 2026 00:31:39 GMT

Hi,

I'm a newbie here. I recently inherited a C5 switch and tried to setup 2 VLAN's. I have successfully created the 2 VLAN's, but the 2 VLAN's can't ping each other. The PC's can ping the switch's addresses in both VLAN's in a setup, but that's it. I have the PC's firewalls turned off but still no luck.

Another problem is that the VLAN's reaching the internet. I only have a home router and it doesn't support VLAN's or dd-wrt. So I would like the VLAN's communication within the switch. When I set the gateway to the router in VLAN A, VLAN A could reach the outside, but couldn't see VLAN B at all. VLAN B couldn't reach either VLAN A nor the internet. Setting the gateway to the switch, both VLAN can only reach the switch's IP using the other network IP, but not the other PC's . With this setup, neither VLAN could reach the outside.

I have looked up quite a few websites but still no luck. I have enabled rip, ip route, etc. Couldn't find ip forwarding command.

Any help or pointers would be greatly appreciated.

Stan

Re: C5 Communications Between 2 VLAN's

Raul_Carbonari — Fri, 10 Jul 2026 13:47:27 GMT

Hi Stan,

Assuming the VLANs and IP configurations are correct, you need to ensure that the device ports have the correct VLANs.

set port vlan {vlan} ge.1.x modify-egrees

This ensures that the port is in access mode.

There is a post here on the Hub with a link to the C5 CLI reference:

https://community.extremenetworks.com/t5/faqs/cli-reference-guide-c5-series-version-6-71-xx-23-may-2013/m-p/48420

Raúl Carbonari

topic Re: C5 Communications Between 2 VLAN's in ExtremeSwitching (EOS)

C5 Communications Between 2 VLAN's

Re: C5 Communications Between 2 VLAN's