routing/name resolution problem

mike spam at kleiderschrank51.de
Tue May 10 14:41:17 PDT 2005


thorsten schrieb:

> Hello all,
>
> I have a lfs-router with two ethernet cards, which connects via pppoe 
> on eth0 to my adsl provider. eth1 has 192.168.0.1/24, my private 
> subnet. On the subnet is 192.168.0.3, named linux. Now the following 
> problem arises and I have no clue what is wrong:
>
> With adsl disconnected all is fine: Name resolution works, I am able 
> to ping linux (192.168.0.3):
>
> route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use Iface
> 192.168.0.0 * 255.255.255.0 U 0 0 0 eth1
>
> ping linux
> PING linux.thorsten.de (192.168.0.3): 56 data bytes
> 64 bytes from 192.168.0.3: icmp_seq=0 ttl=64 time=0.419 ms
> --- linux.thorsten.de ping statistics ---
> 1 packets transmitted, 1 packets received, 0% packet loss
> round-trip min/avg/max/stddev = 0.419/0.419/0.419/0.000 ms
>
> however after adsl connect: no more name resolution within the private 
> subnet:
>
> adsl-start
> Connected!
>
> route
> Kernel IP routing table
> Destination Gateway Genmask Flags Metric Ref Use
> Iface
> 217.0.116.49 * 255.255.255.255 UH 0 0 0 ppp0
> 192.168.0.0 * 255.255.255.0 U 0 0 0 eth1
> default 217.0.116.49 0.0.0.0 UG 0 0 0 ppp0
>
> ping www.google.de ********** external name resolution and ping work
> PING www.l.google.com (66.249.85.104): 56 data bytes
> 64 bytes from 66.249.85.104: icmp_seq=0 ttl=249 time=43.272 ms
> --- www.l.google.com ping statistics ---
> 1 packets transmitted, 1 packets received, 0% packet loss
> round-trip min/avg/max/stddev = 43.272/43.272/43.272/0.000 ms
>
> ping linux ************* that is the point, which I don't get
> ping: unknown host ************* as far as I can see, the routing
> ***********************************
> table looks good and typing ping 192.168.0.3 instead of ping linux 
> works as it should.
> Thank you for comments,
>
> thorsten happel
>
hi torsten,

the "pretty-easy-way" are, update your /etc/hosts to:
192.168.0.3 linux.TLD linux
and so on for each host

or you take a look for a local-name-server, (help: 
http://www.lehrer.uni-karlsruhe.de/~za186/linux/belwue/bind.htm).




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