I have babel set up and talking between two routers, the basic layout looks like this:
router1 10.38.8.1 | 10.38.8.4 router2 192.168.1.10 | 192.168.1.1 adsl-router | internet router1 and router2 are talking babel. This is a simplified network diagram for the moment. In the future, router1 will also be connected to a second adsl line. router2 has babel-pinger and is pinging dns server. >From router1, all seems good. I can get to the internet and router2. However, from router2, babel is not creating a default route for me. Here is router1's table: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.10.0.1 10.38.8.4 255.255.255.255 UGH 0 0 0 eth0.1 192.168.1.10 10.38.8.4 255.255.255.255 UGH 0 0 0 eth0.1 10.38.8.4 10.38.8.4 255.255.255.255 UGH 0 0 0 eth0.1 10.38.8.0 * 255.255.255.0 U 0 0 0 eth0.1 10.11.0.0 * 255.255.255.0 U 0 0 0 br-lan router2's table looks like this: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.11.0.1 10.38.8.1 255.255.255.255 UGH 0 0 0 eth0.1 10.38.8.1 10.38.8.1 255.255.255.255 UGH 0 0 0 eth0.1 10.38.8.0 * 255.255.255.0 U 0 0 0 eth0.1 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0.2 10.10.0.0 * 255.255.0.0 U 0 0 0 br-lan default 192.168.1.1 0.0.0.0 UG 10 0 0 eth0.2 default * 0.0.0.0 U 65534 0 0 lo I can ping 192.168.1.10 (router2's far side interface). But no default route is created on router1, and I can not create one by hand either: router1# ping 192.168.1.10 PING 192.168.1.10 (192.168.1.10): 56 data bytes 64 bytes from 192.168.1.10: seq=0 ttl=64 time=3.701 ms router1# route add default gw 192.168.1.10 route: SIOCADDRT: Network is unreachable I can, however, create one by hand to 10.38.8.4 and this does make things work. I have a bunch of other possibly related questions: When router2's internet connection goes away, I would expect router2 to withdraw the route to 192.168.1.10 but it doesn't. router2 is in fact redistributing a host route to itself (a route to a single host). Why isn't router2 distributing a route to 192.168.1.0/24? In fact, router2 is also distributing a route to itself on the network that it's on (route to 10.38.8.4 via 10.38.8.4 on the 10.38.8.0/24 net), hence it's not very useful (not harmful either). Perhaps I need some filter to only distribute routes with plen ge 1? I admit that I do not understand the babel.conf file very well. Michael _______________________________________________ Babel-users mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/babel-users
