[NTLUG:Discuss] Internet Sharing in Linux

[Patrick Parks]

Help!!! :) I set up one of my computers to share out the internet using
Firestarter, and it works for a few minutes then drops. The machine that
would be the gateway is running redhat 7.2. it has 2 nics in it, one
going to the cable modem, one going to my switch. For some reason , the
nic that is going to my local network is dropping packets like mad.here
is what I am seeing:



[root at dhcp-95-7 pparks]# /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:A0:CC:34:2A:E5  
          inet addr:12.239.20.35  Bcast:255.255.255.255  	     
Mask:255.255.254.0
          UP BROADCAST NOTRAILERS RUNNING  MTU:1500  Metric:1
          RX packets:4445 errors:0 dropped:0 overruns:0 frame:0
          TX packets:505 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:777403 (759.1 Kb)  TX bytes:45821 (44.7 Kb)
          Interrupt:9 Base address:0x7e00 

eth1      Link encap:Ethernet  HWaddr 00:D0:09:F7:5B:28  
          inet addr:192.168.0.1  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1490 errors:332 dropped:0 overruns:0 frame:0
          TX packets:0 errors:621 dropped:0 overruns:1 carrier:466
          collisions:0 txqueuelen:100 
          RX bytes:104118 (101.6 Kb)  TX bytes:0 (0.0 b)
          Interrupt:10 Base address:0x9f80 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:82 errors:0 dropped:0 overruns:0 frame:0
          TX packets:82 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:5630 (5.4 Kb)  TX bytes:5630 (5.4 Kb)

I am not using DHCP, I only have 1 other computer on the network at this
time. Not sure where to start looking, the same setup works in Windows
XP but not in linux. Any suggestions? Thanks.


Patrick Parks