On Tue, 17 Aug 2004, Bryan O'Donoghue wrote:
>> box 1: lo:1 192.168.3.1, eth0 10.100.100.22
> pppd -detach crtscts lock roxyarp 192.168.3.1:192.168.3.2 /dev/ttyS0 9600
> more /proc/sys/net/ipv4/ip_forward == 1
>> box 2: lo:1 192.168.3.2
> pppd -detach crtscts lock defaultroute 192.168.3.2:192.168.3.1 /dev/ttyS0
> route add -net default gw 192.168.3.1
presumably no default route existed previously?
what does 'ip route show 0/0' say?
what does 'ip ro get 10.100.100.22' say?
if you do:
ip route add 10.100.100.0/24 via 192.168.3.1
on box2 (3.1 is box1 right? and the 10.100.100.0/24 is correct prefix
length?) does it work then?
> Pinging between the 192.168.3.x network works between the null
> modem cable And box 2 definately can't ping 10.100.100.22
>> Could this have something to do with the fact that on both machines
> I'm using a second ip assigned to the loopback interface?
ip address show dev lo
ip address show dev ppp0
on both boxes..
it shouldnt make a difference, given that you must have things setup
correctly as each box can ping the other end of the ppp link.
> Ordinarily, when ppp happens in the real world the IPs would be
> assigned to interfaces called ppp(blah), I can't see why it would
> make a difference, but, maybe pppd wants to route interfaces named
> ppp(blah) only?
pppd doesnt route, and kernel automatically installs interface routes
when pppd adds the addresses for it's link.
Paul Jakma paul at clubi.iepaul at jakma.org Key ID: 64A2FF6A
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