AW: dhcp-relay over tun interface - solution?

[Stefan Bauer]

-----Ursprüngliche Nachricht-----
Von:	Shane Kerr <shane at isc.org>
> Okay, one last attempt. :-P
> 
> If we add:
> 
>    case ARPHDR_NONE:
> 	memset(hw, 0, sizeof(struct hardware));
> 	break;
> 
> Right before the "default:" statement in the get_hw_addr() hack that I
> posted earlier it might work. This means that if for some reason there
> is no address we'll just proceed without it.

Hi Shane,

i can now build the binary and bind it:

root at test:~# /usr/sbin/dhcrelay -d -i tuntest -i eth0 1.2.3.4
Internet Systems Consortium DHCP Relay Agent 4.2.5-P1
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on Socket/eth0
Sending on   Socket/eth0
Listening on Socket/tuntest
Sending on   Socket/tuntest
Forwarded BOOTREQUEST for d0:27:88:0c:24:17 to 1.2.3.4
Forwarded BOOTREQUEST for d0:27:88:0c:24:17 to 1.2.3.4
Forwarded BOOTREQUEST for d0:27:88:0c:24:17 to 1.2.3.4

Unfortunately even though the output is Forwarded BOOTREQUEST for.... i dont see any traffic on the tuntest interface:

root at test:~# tcpdump -ni tuntest port 67 or 68
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on tuntest, link-type RAW (Raw IP), capture size 65535 bytes

So it's either not really forwarding it or it reaches not the network layers?!

Thank you.

Stefan