Network is unreachable for loopback

Network is unreachable for loopback

Post by dazim » Thu, 04 Dec 1997 04:00:00



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I'm running redhat 4.2 and when I look at the network control panel, it
shows that the loopback device is not active and I can NOT make that
active.

this is the message I get when I try route.

bash $>route add -net 127.0.0.0
SIOCADDRT: Network is unreachable

bash $>ifconfig
eth0      Link encap:Ethernet  HWaddr 00:00:D4:80:9F:9F
          inet addr:137.15.xxx.xxx  Bcast:137.15.xxx.xxx
Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:501475 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4846 errors:0 dropped:0 overruns:0 carrier:0
coll:403
          Interrupt:5 Base address:0x300

the Ip addresses is not shown.
Any how the loop back device is not coming up, why?

Thank you

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I'm running redhat 4.2 and when I look at the network control panel, it
shows that the loopback device is not active and I can NOT make that active.

<P>this is the message I get when I try route.

<P>bash $>route add -net 127.0.0.0
<BR>SIOCADDRT: Network is unreachable

<P>bash $>ifconfig
<BR>eth0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Link encap:Ethernet&nbsp; HWaddr
00:00:D4:80:9F:9F
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; inet addr:137.15.xxx.xxx&nbsp;
Bcast:137.15.xxx.xxx&nbsp; Mask:255.255.255.0
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; UP BROADCAST
RUNNING MULTICAST&nbsp; MTU:1500&nbsp; Metric:1
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RX packets:501475
errors:0 dropped:0 overruns:0 frame:0
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; TX packets:4846
errors:0 dropped:0 overruns:0 carrier:0 coll:403
<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interrupt:5
Base address:0x300

<P>the Ip addresses is not shown.
<BR>Any how the loop back device is not coming up, why?

<P>Thank you
<BR>&nbsp;
<BR>&nbsp;

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Network is unreachable for loopback

Post by David Schwart » Fri, 05 Dec 1997 04:00:00


Quote:>bash $>route add -net 127.0.0.0
>SIOCADDRT: Network is unreachable

    Try:

    /sbin/ifconfig lo 127.0.0.1
    /sbin/route add -net 127.0.0.1 netmask 255.0.0.0 dev lo

    DS

 
 
 

1. talk not working with pl12/net-2, loopback only : network unreachable

I am running 0.99pl12 kernel with net-2's net-std, net-base and net-010.
All seem to be running properly - telnet, ftp, tftp to localhost are
working, localhost is perfectly ping-able etc etc. However, talk is not
working. After invoking talk, I get the following message:

[No connection yet]
[Error on write to talk daemon : Network is unreachable (101)]

Things that I checked:

- talk/ntalk is present in /etc/inetd.conf, /etc/services
- netstat -u shows ntalk/talk (though (STATE) field is empty...huh? tftp is
also shown in the same way though, but it works)

Any pointers on how to fix that?

--
Michael E. Bravo AKA /\/\ike                  7 812 231 3951  (home)

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