Date: Thu, 27 Mar 2003 10:35:14 -0000 From: Philip Payne <Philip.Payne@uk.uu.net> To: "'Perica Veljanovski'" <FreeBSD@euro.net.mk>, freebsd-questions@freebsd.org Subject: RE: Dual homed host routing problem Message-ID: <36D04A8168B2D41182250008C7E6F8780374F5DE@ukcamexch2.cbg.uk.corp.eu.uu.net>
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> I'm running FreeBSD 4.7-RELEASE and I have trouble routing between two > NIC's. On one side I have a 192.168.1.0/24 network and on the > other a 212.110.94.64/27 > network on which I have mail and web servers, which the 192.168.1.0/24 > hosts should be able to reach. > > Here are the ifconfig and netstat -r outputs: > wb0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 212.110.94.84 netmask 0xffffffe0 broadcast 212.110.94.95 > inet6 fe80::280:48ff:feb5:af3%wb0 prefixlen 64 scopeid 0x1 > ether 00:80:48:b5:0a:f3 > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 > inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255 > inet6 fe80::202:44ff:fe4f:958e%rl0 prefixlen 64 scopeid 0x2 > ether 00:02:44:4f:95:8e > media: Ethernet autoselect (10baseT/UTP) > status: active > > Routing tables > Internet: > Destination Gateway Flags Refs Use > Netif Expire > default 212.110.94.65 UGSc 4 0 wb0 > localhost localhost UH 0 0 lo0 > 192.168.1 link#2 UC 1 > 0 rl0 > 192.168.1.255 ff:ff:ff:ff:ff:ff UHLWb 1 45 rl0 > 212.110.94.64/27 link#1 UC 8 0 wb0 > > and I have net.inet.ip.forwarding set to 1 > > How do I get my box to route packets between the two > interfaces 192.168.1.1 > and 212.110.94.84? It may not be the actual dual-homed boxes issue. For this to work completely, the devices on the two networks you mention must also have the correct routing. So, devices on 192.168.1.0/24 must have a route for 212.110.94.64/27 via 192.168.1.1... most probably a default route as I assume the devices on 192.168.1.0/24 are reaching the net via this box. In addition, any device on 212.110.94.64/27 that is supposed to reach 192.168.1.0/24 devices must route 192.186.1.0/24 via 212.110.94.84.
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