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SubjectRe: Class B, Name lookups? BUG
Date
> The problem does not seem to relate to routing.  Routing works.
> I can reach anything on the internet by IP address.

Ok.

> My DNS servers work fine. Via nslookup they lookup names.
> Using a client program (ftp, telnet, traceroute, ping, ssh...)
> that needs to lookup a name, they fail. Nothing can lookup
> names. At the risk of repeating myself, If I simply plug in
> may Net Configuration:
>
> IPADDR=10.2.3.245
> NETMASK=255.255.0.0
> NETWORK=10.2.0.0
> BROADCAST=10.2.255.255
> GATEWAY=10.2.1.254
>
> This works on every system I tried except for Linux.
> I couldn't get this to work on an out-of-the-box RedHat
> or Slackware install, nor on other production boxes,
> including virgin 1.2.13 boxes and 2.0.0 machines that
> have had "everything" upgraded.
>
>
> I hope that I have made some simple error and somebody can
> point it out. I would not mind feeling stupid %-)
> I do feel that I have configured everything completely
> and checked everything twice, and I believe this should work.
>
> If you have time to look at this typescript, I've attempted
> to prove my dilemma by showing what I've done, and that I've
> checked it thoroughly:
>
> Script started on Mon Jun 24 11:59:46 1996
> eth0 Link encap:10Mbps Ethernet HWaddr 00:A0:24:56:CC:5C
> inet addr:10.2.3.245 Bcast:10.2.255.255 Mask:255.255.0.0

OK. Thats your private network.

> [root@junk /root]# netstat -rn
> Kernel routing table
> Destination Gateway Genmask Flags Metric Ref Use Iface
> 10.2.0.0 0.0.0.0 255.255.0.0 U 0 0 4 eth0
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 14 lo
> 0.0.0.0 10.2.1.254 0.0.0.0 UG 0 0 46 eth0

Ok this is right, and 10.2.1.254 is reachable in theory.

Are you running NIS/YP ?

> ftp sunsite.unc.edu: Host name lookup failure.

How long does it take to fail. If it takes a minute or two then its failing
to talk. If its instantaneous then something system side didnt like it.

BTW: A config matching your network and RedHat 3.0.3 with the addresses
quoted works on my home test net. That of course doesnt help you.

Do both the listed name servers work ? [eg dig @secondserver www.my.net]

Alan



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