Second MAC address to a network adapter

[savago]

It is a possible to add second MAC address to a network adapter or create virtual network interfaces with separate mac addresses ?
In linux especially openwrt i use macvlan

ip link add link eth1 eth2 type macvlan
ifconfig eth2 hw ether 00:24:01:f5:1b:84

ip link add link eth1 eth3 type macvlan
ifconfig eth3 hw ether 00:24:01:f5:1b:85

ip link add link eth1 eth4 type macvlan
ifconfig eth4 hw ether 00:24:01:f5:1b:86

ip link add link eth1 eth5 type macvlan
ifconfig eth5 hw ether 00:24:01:f5:1b:87

ip link add link eth1 eth6 type macvlan
ifconfig eth6 hw ether 00:24:01:f5:1b:88

[stephenw10]

You can probably use virtual IP alias for this:
http://doc.pfsense.org/index.php/What_are_Virtual_IP_Addresses%3F

I'm not entirely sure if the MAC address is inherited though.  :-\

Steve

[savago]

With aliases i can add  IP addresses to an interface,but with same mac. In my scenario i need each one IP addresses has different mac.

[cmb]

only way to do that is with CARP IPs, they use virtual MACs determined by the VHID chosen.

[spiritbreaker]

Hi cmb,

i got same Problem..my ISP assigns IP via mac address. To use a second Ip u need a second mac address.

I solved it by using a switch between ISP Modem and Pfsense. Then i connect 2 physical PfSsense interfaces to the switch (WAN and WAN2).
The sticking point is that 2 WAN connections share one real internet connection. Then u cant use trafficshaper properly right?

To use a CARP MAC address is not really useful if it changes on every reboot.

Maybe there is a solution -> http://www.melen.org/u/jan/wp/?p=82.

Is it applicable to pfsense?

cya

[cmb]

CARP MACs never change, but they can't be used to pull IPs from DHCP. You can just add another physical NIC for that though.

[spiritbreaker]

Hi cmb,

thx for reply… yeah i know :( but i figured out that my problem is there http://forum.pfsense.org/index.php/topic,52196.0.html

Hope u can help me.

ty cya