no vpnc found runningHarrumpf. So I restored /etc/resolv.conf (vpnc puts some rfc1918 addresses in there, which is what my company's intranet uses for DNS), and tried to run vpnc again.
No joy: it couldn't find the IP address of my company. In fact, nothing outside the house was reachable. Why not?
collin@p3:~> netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface xxx.yyy.zz.ww 192.168.1.254 255.255.255.255 UGH 1500 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo collin@p3:~>(xxx.yyy.zz.ww is my company's vpn gateway). Well, there's no default route, for one thing! So I tried this:
collin@p3:~> sudo route add default 192.168.1.254 SIOCADDRT: No such deviceGaaa... it's been too long since I typed that string. What's the incantation required?
collin@p3:~> man route ROUTE(8) Linux Programmer's Manual ROUTE(8) NAME route - show / manipulate the IP routing table SYNOPSIS route [-CFvnee] route [-v] [-A family] add [-net|-host] target [netmask Nm] [gw Gw] [metric N] [mss M] [window W] [irtt I] [reject] [mod] [dyn] [reinstate] [[dev] If] …OK, that gave me the needed clue; I was missing the magic word gw, so I typed:
collin@p3:/mnt/home/collin> sudo route add default gw 192.168.1.254and voilà, everyting started working!
collin@p3:/mnt/home/collin> netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 loThe default route (in yellow) appeared, and I could do everything I needed.0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 0 eth0collin@p3:/mnt/home/collin>
Why did vpnc hose my routing table then abort? I don't know; I suppose this old IBM lease-return has some hardware problems. But they only affect me once in a while, so since it ain't totally broken, I won't replace it.