>What's involved with adding a second NIC to the linux box? Assuming both
>cards are PCI PnP cards will I have to worry about irq's?
Its pretty simple and the system BIOS should automatically allocate
a free IRQ automatically.
>Also, do I have to give th elinux box 2 ip's? (one for each card)
Yes.. your real internet IP will go on one NIC and the private
IP address such as 192.168.0.1 will go on the other NIC.
This is all covered in the TrinityOS doc and the IPMASQ-HOWTO.
>It seems redhat 5.1 can do the masq stuff without rebuilding the kernal, I
>played with the ipfwadm last night and was able get get it working although
>it was painfully slow (using just the one NIC).
This is because you are getting a LOT of duplicate packets and collisons
on your NIC. To prove this, look at the NIC stats:
cat /proc/net/dev
Also.. running "tcpdump -i eth0" should show you a thing or two.
>Lastly, why do some things like quake, ftp, irc have modules but others like
>telnet, http, etc. don't?
Because they have strait forward TCP/IP port mappings where as Quake, FTP,
etc use multiple ports on a dynamic basis. These modules track the
initial protocol negotiations and setup MASQ to work accordingly.
--David
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| David A. Ranch - Remote Access/Linux/PC hardware [EMAIL PROTECTED] |
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