How do I configure my Red Hat Enterprise Linux 3 system to use 802.1q Virtual Local Area Network (VLAN) tagging for all network communication?

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When connected to a properly configured network device, your Red Hat Enterprise Linux 3 system can communicate over a network using 802.1q Virtual Local Area Network (VLAN) tagged frames. The necessary kernel module, 8021q, is already available in the 2.4 kernel.

To use tagged traffic exclusively, create additional ifcfg-ethX.Y files, where X is the interface o...

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