dhcrelay append option 66 and 67

Question

I'm running a PXE Linux server in a VLAN.

How is it possible to use [dhcrelay][1] to forward the DHCP requests to the main DHCP server and add the options for PXE with dhcrelay?

I've tried something like that:

dhcrelay -d -i eth0 10.0.0.42 -a -m append option 66 10.0.0.23

Assuming 10.0.0.42 is the DHCP and 10.0.0.23 is the PXE server. But I get these results:

Adding 9-byte relay agent option
Forwarded BOOTREQUEST for 00:23:23:23:23:23 to 10.0.0.42
send_packet: Invalid argument

Any Ideas about that?

score 0 · Answer 1 · answered Apr 10 '18 at 16:34

0

The DHCP relay does not add the PXE options, the PXE Server does it.

answered Apr 10 '18 at 16:34

Pat

score 0 · Accepted Answer · answered Apr 16 '18 at 12:33

0

The solution was to use dnsmasq in proxyDHCP mode.

answered Apr 16 '18 at 12:33

qwertbert23

2 Answers2