To bind IPs to your FreeBSD server:

Open /etc/rc.conf with your editor
# edit /etc/rc.conf

You should see a line which looks like this:

ifconfig_em0="inet 67.15.18.500 netmask 255.255.254.0"

Directly under it add this
ifconfig_em0_alias0="inet 67.15.18.501 netmask 0xffffffff"

Change 67.15.18.501 to whatever your additional IP is.

If you have more then one additional IPs increase the number after alias for each ip
example:

ifconfig_em0_alias0="inet 67.15.18.501 netmask 0xffffffff"
ifconfig_em0_alias1="inet 67.15.18.502 netmask 0xffffffff"
ifconfig_em0_alias2="inet 67.15.18.503 netmask 0xffffffff"
etc...


Save the file and run /etc/netstart

Reboot? why? only need run /etc/netstart and done

I was not aware of that command.
I guess thats better then rebooting.

For those not familiar with hexadecimal, the 0xffffffff in:
ifconfig_int_alias[0-x]="inet 111.222.333.444 netmask 0xffffffff"

is just 255.255.255.255 in decimal, and can just as well be written in dotted-decimal notation instead of the slightly more complex hex.

/bluePrint

How do you know how many ips are assigned to your server ?

You have to request them within orbit or SC and will justify each and every ip. Once they approve the request you will be given the IPs to bind.

mine is ifconfig_bge0="inet ***.***.**.** netmask ***.***.***.***

so I have to add

ifconfig_bge0_alias0="inet ***.***.**.** netmask 0xffffffff" like this ?