Date: Tue, 13 Feb 1996 13:25:29 -0700 From: Nate Williams <nate@sri.MT.net> To: Zarathustra <jef@akasha.punk.net> Cc: freebsd-questions@freebsd.org Subject: Re: proxy-arp and ppp Message-ID: <199602132025.NAA23626@rocky.sri.MT.net> In-Reply-To: <199602131907.LAA14541@akasha.punk.net> References: <199602131907.LAA14541@akasha.punk.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> I can't seem to manually add arp entries. When I try to proxy-arp for another > IP address, I get the following message: > > ... > arp -s 204.212.160.254 00:00:21:12:62:90 pub > cannot intuit interface index and type for 204.212.160.254 You can only arp for addresses that exist on your ethernet segment. Do the machines on your ethernet segment have similar addresses? > The reason I need to do this is because I'm using this machine as a 'client' > to dial into a ppp 'server' on an otherwise isolated subnet. Which machine is the 'client' in this context, the machine you are proxy-arp'ing for or the machine that's doing the proxy-arp'ing? > The client > is connected to the rest of the internet and is responsible for maintaining > connectivity to the server. The addresses used for the ppp connection are > taken from the subnet on which the client resides due to scarcity of IPs on > the server side subnet. I'm assuming that there are other machines connected to an ethernet controller on the 'client' machine as well? > Because of this, the client needs to proxy-arp for > the addresses used for the ppp connection. Because the other machines on the ethernet segment want to talk to the machines behind the PPP machine? That's the only reason you would need proxy-arp. Otherwise, assuming that the 'internet' is routing all packets to your 'client' machine, your 'client' machine is smart enough to route the packets to their correct destination already. I'm using a gateway machine which is connected to the internet which is also providing dial-in connections and it works well. However, I need proxy arp so that the machines connected to the gateway box on the ethernet can also speak to the dial-in boxes. Nate
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199602132025.NAA23626>