Is it possible to enable DHCP-Server on Management Interface?

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Is it possible to enable DHCP-Server on Management Interface?

L1 Bithead

Hi, I would like to know, if there is a way to enable DHCP-Server on management interface? We are using another interface for management so we could enable DHCP-Server on the dedicated management interface. In case of need we can establish a physical connection between the management interface and a laptop.

6 REPLIES 6

Cyber Elite
Cyber Elite

Hi

A DHCP server, and other services, can only be enabled on the dataplane interfaces so the dedicated mgmt port cannot be used to run services.

regards

Tom

Tom Piens
PANgurus - (co)managed services and consultancy

Wouldnt this be a valid workaround (sort of)?

1) Create a management profile and attach this to a dataplane interface.

2) Create a dhcp server configuration and attach this to the same dataplane interface.

3) Connect client to this specific dataplane interface.

Of course you will lose the gui in case dataplane malfunctions but you can still use the dedicated mgmt interface if this occurs (that is connect two interfaces to your mgmt-vlan).

L4 Transporter

I have been pondering on this question since you wrote it. Why do you need DHCP on the management interface.  What is wrong with a crossover cable with a static IP on the laptop, if you need to talk to the mgmt interface. As the other person commented, DHCP services are limited to the dataplane ports, not the mgmt plane, so you cannot set one up.

I guess DHCP is handy if you have more than one admin client, on the other hand using fixed ip's makes it slightly harder for an attacker (with dhcp you can just plugin any device, with fixed ip you need to know which network is being used).

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