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MikroTik App
 
garegin
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Joined: Wed Oct 13, 2021 5:28 pm

multiple DHCP servers for multiple VLANS (data + voice)

Wed Oct 13, 2021 7:44 pm

Hi

Cisco Switch c2960x
Just got my Mikrotik RB3011UIAS-RM. I only intend to use it as a DHCP server for multiple VLANS. I have many VLANs, but for now just need it to hand out addresses to Shortel phones.

on my switch bunch of ports are configured for VLAN 1 + 100 (voice)

I want to attach the mikrotik to the switch and then have it assign addresses based on the VLAN tag
The way Shortel phones work is that they they first get a DHCP on the untagged VLAN and then have 156 option in that DHCP reply with the VLAN info to get another DHCP address from the specified VLAN.
So at a minimum the Mikrotik has to discriminate between VLAN tags and assign addresses accordingly. Also it should assign regular devices addresses from the untagged VLAN.

Also for some reason, even after disabling the PoE on the switch port, connecting the Mikrotik to the switch causes the switch to disable the port (err disable)

Thanks in advance

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