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I am using the Ubuntu 18.04. For the seek of an enterprise client i would like to use my server as a DHCP server and as a DHCP Relay Agent. I am not sure if this is a possible solution. I know that this is feasible with Cisco technology and with Mikrotik, but as a newbie in this i am not sure.

Kostas
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1 Answers1

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Yeah, there are multiple choices.

One option is to you use dhcrelay from ISC. As command:

#IPv4
dhcrelay -4 --no-pid -l eth1 -u eth2
#IPv6
dhcrelay -6 --no-pid -l eth1 -u eth2

-l lower interface (listening for requests), -u upper interface relaying request to other DHCP.

But you don't have launch that way, the package contain services

  1. Install its package

    sudo apt install isc-dhcp-relay

  2. Copy the needed service file or both:

    /lib/systemd/system/isc-dhcp-relay.service
/lib/systemd/system/isc-dhcp-relay6.service

    To

    /etc/systemd/system/

  3. Edit them and put the network interfaces.

  4. Start the service, similar to

    sudo systemctl start isc-dhcp-relay

    or

    sudo systemctl start isc-dhcp-relay6

References:

user.dz
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