freebsd-net: ether alias

[Андрей Поляков]

Hi, I am using freebsd 6.2.  And I am doubt how to add a 
harware address alias to my NIC wich would be associated 
with ip. For example, there are configuration:

vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> 
mtu 1500
         inet 87.224.232.129 netmask 0xff000000 broadcast 
87.255.255.255
         inet 87.224.232.119 netmask 0xff000000 broadcast 
87.255.255.255
         ether 00:15:f2:38:83:59
         media: Ethernet autoselect (100baseTX 
<full-duplex>)
         status: active

But I need smth like this:

vr0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> 
mtu 1500
         inet 87.224.232.129 netmask 0xff000000 broadcast 
87.255.255.255
         ether 00:15:f2:38:83:59
         ether 00:15:f2:38:13:12
         inet 87.224.232.119 netmask 0xff000000 broadcast 
87.255.255.255
         ether 00:80:48:4e:54:42
         media: Ethernet autoselect (100baseTX 
<full-duplex>)
         status: active

How do I setup multiple mac addresses?