Help: pxe + tftp Green -> Orange

void

i have the following scenario:

GREEN and ORANGE network
pxe/tftp server in the ORANGE network
clients from the ORANGE network are able to boot from the server without a problem.
tftp-proxy activated for GREEN and ORANGE
from the logfile i can see the tftp proxy looks like to work

my problem:
clients from the GREEN network can't boot from the pxe server in the ORANGE net

my question:
can this setup work? are just a few rules missing or does this simply not work without opening the whole firewall?

another test i made:
if i try to connect with the windows tftp client


tftp 192.168.100.2 get pxelinux.0

i get the following messages in the log:


Jul 29 00:18:18 	inetd[35839]: /usr/libexec/tftp-proxy[52314]: exited, status 1
Jul 29 00:18:18 	inetd[35839]: /usr/libexec/tftp-proxy[52314]: exited, status 1
Jul 29 00:18:18 	tftp-proxy[52314]: couldn't forward tftp packet: Operation not permitted
Jul 29 00:18:18 	tftp-proxy[52314]: couldn't forward tftp packet: Operation not permitted
Jul 29 00:18:18 	tftp-proxy[52314]: 192.168.0.50:55609 -> 127.0.0.1:6969/192.168.100.1:55268 -> 192.168.100.2:69 "RRQ pxelinux.0"

jimp

Do you have captive portal enabled on one of those networks, by chance?

void

https://…/services_captiveportal.php
"Enable captive portal" is not enabled