nixCraft

hello every one...

What is ip-forwarding in red hat linux????

IP forwarding required when you need Linux act as

• Linux router/gateway, DMZ, security configuration
• Dial up server / ppptp, vpn and much more for LAN
• Internet connection sharing

See following articles on how to enable ip forwarding for sharing internet connection or DMZ setups:

1. CentOS / Redhat Linux Internet Connection Sharing
2. Linux Demilitarized Zone (DMZ) Ethernet Interface Requirements and Configuration

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Vivek | My personal blog
Linux Evangelist
Play hard stay cool

Simply, Port forwarding is to forward your LAN network application onto internet. Like,if you have your web server inside LAN & you want to make it visible for public on the internet,then you can use port forwarding facility.

In linux, "iptables" is a very good tool to enable port forwarding.

The Main concept behing port forwridng is NAT. ( Network Address Translation )

Thanks,
Nishith Vyas.