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Date: Thu, 7 Jun 2001 17:04:59 -0500
From: Christopher Farley <chris@northernbrewer.com>
To: freebsd-questions@freebsd.org
Subject: ifconfig aliases
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A machine's primary IP address on the xl0 interface is 10.0.0.2.
For the purposes of running a webserver, I have an IP alias on the
same interface: 10.0.0.32

The machine now advertises itself to my network as 10.0.0.32.

Is there a way to force this machine to advertise itself as it's primary
IP address, 10.0.0.2?

Attached are the relevant lines from rc.conf, and an ifconfig xl0

# cat /etc/rc.conf | grep xl0
network_interfaces="xl0 lo0"
ifconfig_xl0="inet 10.0.0.2 netmask 255.255.255.0"
ifconfig_xl0_alias0="inet 10.0.0.32 netmask 255.255.255.255 broadcast 10.0.0.255"

# ifconfig xl0
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 10.0.0.2 netmask 0xffffff00 broadcast 10.0.0.255
	inet6 fe80::260:8ff:fea4:e9c3%xl0 prefixlen 64 scopeid 0x1 
	inet 10.0.0.32 netmask 0xffffffff broadcast 10.0.0.255
	ether 00:60:08:a4:e9:c3 
	media: autoselect (100baseTX) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback>

-- 
Christopher Farley
www.northernbrewer.com

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