How can I setup Ethernet aliases?

Frequently Asked Questions for FreeBSD 2.X : Networking : How can I setup Ethernet aliases?
Previous: I can't create a /dev/ed0 device!
Next: How do I get my 3C503 to use the other network port?

10.9. How can I setup Ethernet aliases?

Add ``netmask 0xffffffff'' to your ifconfig command-line like the following:

        ifconfig ed0 alias 204.141.95.2 netmask 0xffffffff

Frequently Asked Questions for FreeBSD 2.X : Networking : How can I setup Ethernet aliases?
Previous: I can't create a /dev/ed0 device!
Next: How do I get my 3C503 to use the other network port?