[NTLUG:Discuss] Firewalling Using RedHat

[Bug Hunter]

  you have to set the route flag in the kernel.  a tutorial in IP
Masqueradeing usually talks about it.  

  for the 2.2 kernel it was:
echo 1 > /proc/sys/net/ipv4/ip_forward

  I don't know about the 2.4 kernel yet.


On Mon, 18 Feb 2002, Tim Willis wrote:

> I used webmin, good idea, thanks.  I should have thought of that
> earlier. Now the networking is correct.  I went through lokkit and set
> another machine's default gateway to the internal NIC on my RedHat box,
> and it still wouldn't route.  Do I need to set up IP Masquerade on this
> box as well?
> 
> > -----Original Message-----
> > From: discuss-admin at ntlug.org 
> > [mailto:discuss-admin at ntlug.org] On Behalf Of Bug Hunter
> > Sent: Monday, February 18, 2002 13:30
> > To: discuss at ntlug.org
> > Subject: Re: [NTLUG:Discuss] Firewalling Using RedHat
> > 
> > 
> > 
> >   dmesg should provide some clues.
> > 
> >   also, look in /etc/sysconfig/network-scripts and see if an 
> > ifcfg-eth1 script exists (and an ifcfg-eth0).  If they don't 
> > somehting failed during the network configuration, and you 
> > either need to redo it by hand or try something like webmin.
> > 
> > 
> > On Mon, 18 Feb 2002, Tim Willis wrote:
> > 
> > > Here is my situation.  I've just added an additional NIC to 
> > my RedHat 
> > > 7.2 box.  It recognized the card and I configured it with 
> > the correct 
> > > IP and subnet, and then the boot process continued.
> > > 
> > > However, upon doing ifconfig, I only get the lo interface 
> > paramaters. 
> > > I've had to re-set the network configuration for my internal card 
> > > (eth0) each time I've re-booted.
> > > 
> > > Looking in the GNOME Network configuration utility I've found that 
> > > both cards are listed, and also, they are configured with 
> > the proper 
> > > IP, netmask, and gateway.  However, like above, if I run 
> > ifconfig, I 
> > > only get the parameters for lo.  After I do ifconfig eth0 
> > > 192.168.254.2 netmask 255.255.0.0 / route add default gateway 
> > > 192.168.254.1, I can get the parameters for eth0 (in 
> > addition to lo).  
> > > If I try to set the IP and netmask for eth1, the message is:
> > > 
> > > SIOCSIFADDR: No Such Device
> > > eth1: No such device
> > > SIOCSIFNETMASK: No Such Device
> > > 
> > > Do I need to add eth1 somehow?  Why Do I have to 
> > continually re-do the 
> > > ip/netmask on the internal card each time I re-boot?
> > > 
> > > Thanks
> > > TimW
> > 
> > 
> > _______________________________________________
> > http://www.ntlug.org/mailman/listinfo/discuss
> > 
> 
> 
> _______________________________________________
> http://www.ntlug.org/mailman/listinfo/discuss
>