| Subject: | Weird cipe problem... |
| From: | Nathan Neulinger <nneul,AT,umr,DOT,edu> |
| Date: | Wed, 22 Aug 2001 02:04:39 +0200 |
(Peter - I found out that the iproute2 stuff actually wasn't being used, and it was actually going assymettric. So I decided to try it your way, with changing to just using default route/host route. It was working fine, but I didn't like the assymettric route. Very inneficient for certain ip's that I use frequently.) I reconfigured the setup to be more like the examples - default route over cipe link, host route to my cable modem gateway: Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.0.2.1 0.0.0.0 255.255.255.255 UH 40 0 0 cipcb0 192.55.114.253 216.229.79.1 255.255.255.255 UGH 40 0 0 eth0 216.229.93.16 0.0.0.0 255.255.255.240 U 40 0 0 eth1 216.229.78.0 0.0.0.0 255.255.254.0 U 40 0 0 eth0 131.151.0.0 10.0.2.1 255.255.0.0 UG 40 0 0 cipcb0 127.0.0.0 0.0.0.0 255.0.0.0 U 40 0 0 lo 0.0.0.0 10.0.2.1 0.0.0.0 UG 40 0 0 cipcb0 This works great for most addresses, but not for others. For example, I can telnet from 216.229.93.21 to 192.55.114.3 just fine, as well as to yahoo:80, etc. But I cannot get to 131.151.32.21. All I could find is that the router box is sending a icmp host unreachable message when telnetting to 131.151.32.21. Now, here's the TOTALLY INSANE WEIRD part. If I start up ethereal/tethereal/tcpdump on my router on ANY INTERFACE (eth0/eth1/cipcb0) - it starts working and the telnet goes through without the host unreachable message. Is that totally bizarre or what? This is on kernel 2.4.7-ac3 with cipe-1.5.2. -- Nathan ------------------------------------------------------------ Nathan Neulinger EMail: nneul,AT,umr,DOT,edu University of Missouri - Rolla Phone: (573) 341-4841 CIS - Systems Programming Fax: (573) 341-4216