[nylug-talk] SOLVED - but q's about proxy arp... dhcp with multiple nics?

[Brandorr]

(Google "proxy arp" read either the WIkipedia or Cisco articles. Let
me know if you have any further questions.). (I typed an answer, but
gmail javascript quirkiness caused the whole message to be erased, and
I dont feel like retyping :(


Cheers,
Brian

On Nov 7, 2007 12:27 AM, jh <jhlists at hirschman.net> wrote:
> jh wrote:
>
> I decided to bring my Windows boxes up as static addresses. When they
> wouldn't work - windows was complaining that their IP addresses were
> already taken - I decided to dig deeper...
>
> >
> >
> >>    It's obviously overly coincidental that this only seems to happen to the
> >> Windows boxes, so I'd be surprised if this were the actual problem.
>
> Here's the actual problem:
>
> One box here is was set with the following in sysctl.conf:
>
> net.ipv4.conf.eth0.proxy_arp=1
> net.ipv4.conf.eth1.proxy_arp=1
>
> Once this machine was downed, all dhcp hell went away.
>
> Can someone explain why these settings were freaking out all the windows
> boxes on my network - such that they believed that their IP was already
> taken?
>
> Thanks.
>
> jh
>
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-- 
- Brian Gupta

http://opensolaris.org/os/project/nycosug/