On Sat, Jan 08, 2000 at 09:17:05PM +0100, Robert Waldner wrote: > >I find that sometimes I cannot use that interface after the network > >is changed.... I get something like "network unreachable" when > >I try to ping some hosts on that network. The NIC is fine after > >a reboot. Most of the time I was using slink with kernel 2.2.13. > >Are there any other things that I need to do? Or was it driver > >dependent? > > sounds like a missing route, route -n will show you the actual routing table, > which should be something like > Destination Gateway Genmask Flags Metric Ref Use Iface > 193.154.142.0 0.0.0.0 255.255.255.0 U 0 0 116 eth0 > 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 4 lo > 0.0.0.0 193.154.142.1 0.0.0.0 UG 1 0 46 eth0 > > the kernel needs to know which ip-address of its default-gateway and over > which interface that can be reached. > > /etc/init.d/network should add the appropriate routes when invoked via > /etc/rcS.d/S40network. > > if that doesn´t help, do a ping -v to see where the unreachables come from, > could be your host or some router on the way... >
But the routes are there. At least the routes for the local network are there. (2.2 kernels add them automatically, don't they?) I even tried to manually bring down all ethX, remove all routes and start them up again. Still doesn't work until I reboot in frustration. Can't even ping other hosts in the same network. Perhaps I overlooked something.... To Lindsay: I tried manually using ifconfig already :(
