PXE boot will not send a DHCPREQUEST

0n0w1c

I have several SEI Series Gen 8 units which I need to boot via PXE IPv4.

These units refuse to send a DHCPREQUEST.
```
Jan 20 12:55:49 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:55:50 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:55:53 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:55:53 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:56:01 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:56:01 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:56:17 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 12:56:17 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:15 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:16 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:19 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:19 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:27 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:27 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:43 chick dhcpd[1860553]: DHCPDISCOVER from 84:47:09:0a:5b:c7 via 10.208.0.1
Jan 20 13:01:43 chick dhcpd[1860553]: DHCPOFFER on 10.208.0.137 to 84:47:09:0a:5b:c7 via 10.208.0.1
```
This is in a working production environment, dhcpd is working for multiple different clients across multiple v-lans, all without issue.
The dhcpd server is a linux server, maybe these units are somehow only for "Windows DHCP Server"?

0n0w1c

I was finally able to get a DHCPREQUEST and DHCPACK, it seems this version of PXE is very picky about the DHCP options which are returned. Documentation as to the required options would be helpful.

0n0w1c

As I continue my efforts, I find that the PXE does not use the tftp-server-name option. It ignores this and attempts to access dhcpd server for the tftp boot files.