Date: Mon, 4 Dec 1995 14:16:22 -0800 (PST) From: Tom Samplonius <tom@uniserve.com> To: Yuri Gindin <yuri@aebeard.technion.ac.il> Cc: freebsd-questions@freebsd.org, freebsd-isp@freebsd.org Subject: Re: routing problems with ppp. Message-ID: <Pine.BSF.3.91.951204141435.18669E-100000@haven.uniserve.com> In-Reply-To: <Pine.BSF.3.91.951203194132.196A-100000@aebeard.technion.ac.il>
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On Sun, 3 Dec 1995, Yuri Gindin wrote: > Hello All, > > I have some problems connecting two computers with ppp. > One computer is connected to the ethernet line and has > a modem. I want to route traffic through this one. > I connect from the second computer using iij-ppp > and everything goes fine, i.e. when I start ppp -direct > on the first computer or pppd I can connect to it > but traceroute stops on it and doesn't go furhter. > The routing tables on both computers seem to be OK. From looking at the routing tables, it appears that both systems have an IP address out of the same network block. So all systems on the ethernet think the system at the end of the ppp link is locally connected, but it's not. You need to use "arp" to manually publish an entry for the system connected via ppp, so it appears on the ethernet. Tom > The first computer: > Internet: > Destination Gateway Flags Refs Use Netif Expire > default 132.68.146.254 UGSc 4 6 le0 > 127.0.0.1 127.0.0.1 UH 1 0 lo0 > 132.68.146 link#2 UC 0 0 > 132.68.146.67 127.0.0.1 UGHS 0 0 lo0 > 132.68.146.152 132.68.146.67 UH 2 822 ppp0 > 132.68.146.254 0:0:c:1:96:16 UHLW 4 0 le0 767 > and netstat -in gives: > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > lp0* 1500 <Link> 0 0 0 0 0 > le0 1500 <Link>08.00.2b.3f.cb.a5 3834 0 40 0 0 > le0 1500 132.68.146 132.68.146.67 3834 0 40 0 0 > lo0 16384 <Link> 0 0 0 0 0 > lo0 16384 127 127.0.0.1 0 0 0 0 0 > ppp0 1500 <Link> 1091 0 877 0 0 > ppp0 1500 132.68.146 132.68.146.67 1091 0 877 0 0 > sl0* 552 <Link> 0 0 0 0 0 > tun0* 1500 <Link> 0 0 0 0 0 > > On the second computer (client): > Internet: > Destination Gateway Flags Refs Use Netif Expire > default 132.68.146.67 UGc 1 4 tun0 > 127.0.0.1 127.0.0.1 UH 1 0 lo0 > 132.68.146.67 132.68.146.152 UH 4 1140 tun0 > 132.68.146.152 127.0.0.1 UGHS 0 0 lo0 > > and > > Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll > lp0* 1500 <Link> 0 0 0 0 0 > lo0 16384 <Link> 0 0 0 0 0 > lo0 16384 127 127.0.0.1 0 0 0 0 0 > ppp0* 1500 <Link> 0 0 0 0 0 > sl0* 552 <Link> 0 0 0 0 0 > tun0 1500 <Link> 1019 0 1299 0 0 > tun0 1500 132.68 132.68.146.152 1019 0 1299 0 0 > > I have compiled the kernel on the first (server) computer with > optinons GATEWAY > and use: > sysctl -w net.inet.ip.forwarding=1 > in /etc/netstart. > > Any suggestions, > Any help will be highly appreciated. > > --Yuri. >
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