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[ubuntu] Use Linux box with one NIC as Router

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http://ubuntuforums.org – Hello community, Is it possible to use a Linux box with just one Ethernet NIC as a router, creating virtual interfaces, thus having two IP addresses on one physical network card? eth0 192.168.2.1 (local router IP address and netmask) eth0:0 (WAN IP Address and Netmask) Then use IPtables and routing to direct traffic from eth0:0 to eth0 and back (or maybe use bridging if that's possible for virtual interfaces?). Please leave your suggestions and comments. Thank you, -Beboy ()