Dual Wan Addresses Possible on One Interface?

[chpalmer]

Curious-

I have my pfSense connected directly to my cable "modem".

I have available to me an address provided via dhcp from my provider and also one static address.

Can I use both addresses with one interface?

Thanks!

[GruensFroeschli]

If you have only 1 static and one dynamic IP:
set the WAN to dynamic to get the DHCP assigned address.
After this create a VIP for the static address.

You cannot get multiple DHCP addresses on the same interface.
However if you have a VLAN capable switch you can do kind of a workaround.
Create as many VLANs on the interface as you can get IPs.
Configure for each IP on the VLAN switch a singe port.
You now need a second switch connected to the modem. Connect each VLAN por to the switch at the modem.
You should now be able to get for each VLAN interface a DHCP address.

[chpalmer]

Thank You!  :)