I have some problems getting IP tunneling working:
Here is route configuration before I begin:
~ # route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
0 dummy
If I try to configure like that(As said in NET-3-HOWTO) , It doesn't
work
~ # route add -host 192.168.7.1 gw 192.168.1.7
~ # modprobe ipip
~ # ifconfig tunl0 192.168.3.4 netmask 255.255.255.255
~ # route add -net 194.6.133.0 netmask 255.255.255.0 gw 192.168.7.1
tunl0
SIOCADDRT: Network is unreachable
If I declare tunl0 pointopoint, It works fine, but I get a route to
IPIP
decapsultor via tunl0, which I shouldn't get I believe (even If it
wont hurt,
as the real route is before in routing table)
~ # route add -host 192.168.7.1 gw 192.168.1.7
~ # modprobe ipip
~ # ifconfig tunl0 192.168.3.4 netmask 255.255.255.255 pointopoint
192.168.7.1
~ # route add -net 194.6.133.0 netmask 255.255.255.0 gw 192.168.7.1
tunl0
~ # route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref
Use Iface
192.168.7.1 192.168.1.7 255.255.255.255 UGH 0 0
0 dummy
192.168.7.1 0.0.0.0 255.255.255.255 UH 0 0
0 tunl0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0
0 dummy
194.6.133.0 192.168.7.1 255.255.255.0 UG 0 0
0 tunl0
And as I can see below, ifconfig -a (net-tools-1.48) doesn't show
that
tunl0 is pointopoint interface nor it shows decalsulator's address
dummy Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.1.1 Bcast:192.168.1.255
Mask:255.255.255.0
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:1603 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:71 errors:0 dropped:0 overruns:0 frame:0
TX packets:71 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:192.168.3.4 Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
Can someone tell me if there is bug in tunnelling or if I am misdoing
sth
Christophe Leroy
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to [EMAIL PROTECTED]
