Date: Thu, 1 Feb 2001 11:15:51 -0000 From: parminder.mudhar@bt.com To: freebsd-net@FreeBSD.org Subject: RE: Routes and tunnels Message-ID: <71DA16F18D32D2119A1D0000F8FE9A9409D21C68@mbtlipnt01.btlabs.bt.co.uk>
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Hi Thanks for the replies. Sorry, I forgot to say that I was using to the tunnel to connect to the remote site with interface address of 132.146.113.1 and I am not using the tunnels to send the packets to the local address, 132.146.115.164. I am trying to use tunnels as point to point links for running routing over them. But the end result is that I do not see a packet destined for the end point of the tunnel, 132.146.113.1 on the wire. Parminder Mudhar __________________________ parminder.mudhar@bt.com > -----Original Message----- > From: Mudhar,PS,Parminder,CEG2 R > Sent: Wednesday, January 31, 2001 5:02 PM > To: 'freebsd-net@FreeBSD.org' > Subject: Routes and tunnels > > 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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