topic DHCP issues on ERS switches in ExtremeSwitching (ERS)

DHCP issues on ERS switches

Klenan — Fri, 02 Aug 2019 20:56:34 GMT

I have been experiencing some issues on some networks we have set up. Both have similar codes running them and so i presume the issues are equally similar also.
i have noticed DHCP relay is not happening as it should. For instance, when i connect any Avaya phone it sees the LLDP as configured but does not acquire an IP but some do;
Has anyone had this issues please? And this issue is not just with the phones

Re: DHCP issues on ERS switches

Fijs — Wed, 07 Aug 2019 18:52:39 GMT

What is the exact ERS model, and what firmware are they running?
Can you paste the dhcp-relay config?

Re: DHCP issues on ERS switches

Bucky101 — Tue, 23 Mar 2021 13:42:19 GMT

Hey,

Did you get to the bottom of this? Having this issue with ERS3500 5.2.2.002

10.1.12.10 = Voice VLAN IP

10.0.50.250 = Windows DHCP Server

ip dhcp-relay fwd-path 10.1.12.10 10.0.50.250
interface vlan 1
ip dhcp-relay broadcast
exit
interface vlan 2
ip dhcp-relay broadcast
exit

Re: DHCP issues on ERS switches

Dilraj_Singh_Kh — Thu, 13 May 2021 08:19:19 GMT

Better open up a GTAC case for this.

Re: DHCP issues on ERS switches

EXTR_Paul — Wed, 19 May 2021 19:02:15 GMT

Was it working and stopped working?

Or you are unable to get it working?

Can you please post the config from the switch so we can check it out.