Date: Wed, 31 Jan 2001 17:01:51 -0000 From: parminder.mudhar@bt.com To: freebsd-net@FreeBSD.org Subject: Routes and tunnels Message-ID: <71DA16F18D32D2119A1D0000F8FE9A9409D21C67@mbtlipnt01.btlabs.bt.co.uk>
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Hi I don't know if this is intentional or a bug, but if ifconfig is used to configure a point to point device, such as 'tun' or the newer 'gif' devices, then the kernel insists on installing a route where the destination is the end point of the tunnel, the gateway is the source of the tunnel and the interface is the device itself. I have checked this in version 3.2+KAME, what I a using, and also on version 4.1. The effect of the above is that the packet that uses the tunnel will never appear on the wire. Here is an output the_swamp# ifconfig gif0 132.146.115.164 132.145.113.1 the_swamp# netstat -rnf inet Routing tables Internet: Destination Gateway Flags Netif Expire default 132.146.115.1 UGSc 1 0 fxp1 127.0.0.1 127.0.0.1 UH 0 4 lo0 132.145.113.1 132.146.115.164 UH 0 0 gif0 132.146.115/24 link#2 UC 0 0 fxp1 => 132.146.115.1 0:30:19:9a:e4:71 UHLW 2 0 fxp1 460 I am also interested in using gated with point to point tunnels, but gated also insists on doing the above for point to point links. I thank you in advance for any advice you may have. Parminder Mudhar __________________________ parminder.mudhar@bt.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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