MASQUERADE + DHCP problem
kaber at trash.net
Mon Sep 12 01:57:22 CEST 2005
Rusty Russell wrote:
> On Sun, 2005-09-11 at 17:07 +0200, Patrick McHardy wrote:
>>2) Add a special hack to masquerade to handle DHCP while no
>> local address exists by looking at the port and src/dst
>> address. Incredibly ugly and wrong :)
> If IP src is 0.0.0.0, let it through untouched. Those packets are
> presumably not supposed to be masqueraded, so it's the Right Think
> Will that fix DHCP?
Absolutely. Since these packets never get routed, the only possibility
when they can occur is when a local raw socket with IP_HDRINCL chooses
a source address of 0. In that case it definitely seems right to leave
the packet alone.
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