Re: modem up and running but no ping

[Paolo Pedaletti <paolop@matapp.unimib.it>]

ciao Martin Wegmann,

> ppp0      Link encap:Point-to-Point Protocol
>           inet addr:145.254.235.101  P-t-P:145.253.1.121  Mask:255.255.255.255

your address: 145.254.235.101
the address of the other side of the cable: 145.253.1.121
(your gateway to internet)

> baliola@diomedea:/$ /sbin/route -n
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
> 145.253.1.121   0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
> 10.0.0.0        0.0.0.0         255.255.255.0   U     0      0        0 eth0
> 0.0.0.0         10.0.0.1        0.0.0.0         UG    0      0        0 eth0

here you can see that in the routing table the gateway is 10.0.0.1
(0.0.0.0 means everything that has not an explicit route)

so all your ping go to 10.0.0.1 instead to 145.253.1.121

solution:

cat script/route-ppp.sh 
#!/bin/sh -x

FROM=$1
TO=$2

# delete bad default route
route del default gw $FROM eth0
# add new default route
route add default gw $TO ppp0


call this script as:
route-ppp.sh 10.0.0.1 145.253.1.121

try it.

ciao

-- 
/* Paolo Pedaletti,