How to configure a Cisco ASA5505 to work with a Vodafone SureSignal device

I have purchased a Vodafone SureSignal device as I have problems with the mobile network in my area.
I use a Cisco ASA5505 firewall between my broadband router and my network.
The broadband is fibre-to-the-cabinet and runs at about 50Mbps and is very reliable.
I understand from Vodafone that it is necessary to forward a number of ports to the address of the SureSignal, but it is not possible to assign a static IP address to that device, there is no interface to it. Apparently it will only work with DHCP.
My ASA is configured to handle the DHCP for my network, but I don't believe it is possible to fix an IP address relating to the MAC address of the SureSignal using the ASA. So I cannot forward to an IP address I do not have.
Has anyone successfully configured an ASA to work with a SureSignal device?
BishopsWalthamAsked:
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Patrick BogersDatacenter platform engineer LindowsCommented:
Hi,

No experience with Suresignal but you could hook up the device to the ASA and run
CiscoASA# sh dhcpd binding

This will show you the ip adress bound to this device from which you can forward ports.
It is to bad ASA does not support DHCP reservations bound to MAC Address.

Hope this helps.

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