[H-GEN] DHCP server & IP Masqerading

[Michael Anthon]

(Note reply-to: being general at humbug.org.au vs Michael Anthon <mca at tams.com.au>)

I run that setup here.... 2.2.5 kernel, dhcpd V2.0b1pl18.  I also had the
same dhcpd running previously on 2.0.35.

I do not think there is anything strange required to get it to work.
However if you are setting the default input and output policies for the
masquerading to deny, this might cause a problem.  Can we see the output of
ipchains -L ?

Cheers
Michael A. 

-----Original Message-----
From: John Boggon [mailto:John.B at uq.net.au]
Sent: Monday, 12 July 1999 1:53
To: Humbug General
Subject: [H-GEN] DHCP server & IP Masqerading


(Note reply-to: being general at humbug.org.au vs John Boggon
<John.B at uq.net.au>)

Has anyone ever got these two items working on the same physical 
machine ?. I've tried everything short of voodoo.

After compiling several dozen kernels trying out various combinations
of configurations ( I know it's the kernel because my DHCP-beta config 
file works fine with one kernel that does not have masq support.)
I'm about ready to call in the witch doctors or make a blood sacrifice.

(disclaimer; I know next to nothing about the inner workings of TCP/IP 
and the Linux kernel.)

I've tried both 2.0.36 and 2.2.10 kernels. I've tried the
route add net 255.255.255.255 dev eth0 hack mentioned in the 
HOW-TO. My linux box has been re-booted so many times this 
weekend, it's starting to get a windows complex.

A tcpdump ip broadcast run on the DHCP server shows that the dhcp 
 request from a windows box makes it across. Thats as far as 
it goes though. syslog shows absolutely no activity from dhcpd at all.
However, if I replace the kernel with one that has no masq support, all 
is fine.
Is there something tricky I can try with ip forwarding rules ?

John Boggon

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