Re: ARP

[Christoph Pleger]

Hello William,

> Good afternoon, Chris,
> 
> On Thu, 17 Apr 2003, Christoph Pleger wrote:
> 
> > I want to use FreeS/WAN with kernel 2.4. For the configuration I
> > have to reach with FreeS/WAN I need the ability to tell a host that
> > it shall accept traffic which is directed to another host. I tried
> > doing that by the user space program arp, but it did not work and
> > after that I read in the manual page of arp that since kernel
> > version 2.2.0 setting an arp entry for a whole subnet is no longer
> > supported. 
> > 
> > Is there something else I can do to tell the hosts in a subnet to
> > send packets for a specific not to that host itself but to another
> > host? This should be done transparently so that the hosts do not
> > know that their ip packets do not go directly to the destination.
> 
> 	Proxy arp _does_ work, to the est of my knowledge, still.  You
> 	may 
> need to put in the entries for each workstation, that that's a simple 
> shell loop in your network startup.
> 
> http://www.stearns.org/doc/proxyarp-howto

I did exactly what you described on your webpage (of course I changed
the addresses), but the arp request of another host still is not
answered by the FreeS/WAN gateway. Do I have to enable special kernel
options for proxy arp to work?

Kind regards
  Christoph