Simple table/chain question #8
Mon, 21 Jan 2002 14:54:39 -0500
Ok, this has been bugging me.
#8 If a TCP packet is going to my workstation, how does the firewall
_know_ to forward that packet to the workstation since the
would be the PPP0 IP# when coming from the internet? We can
pretend its an ICQ packet using TCP going to the workstation.
#8a Does the firewall know to forward it based on TCP Sequence #? Or
does it route based on the IP Ident number? IP headers are much
and contain a lot more info....In otherwords, a simple ICQ message
packet might be TCP (lets just say it is for argument sake), but its
encapsulated in an IP packet, right? So, the firewall forwards my
TCP packet based on....what? Since the destination is the same as
the PPP0 IP# for my entire LAN due to NATing, right??
Please let me know if you need clarification- I did not word this very well
at all. I can use my NEWBIE to GURU translation booklet if you need me
too. Thank you for your patience and I truly appreciate it!