Cable Forum - View Single Post - Superhub Virgin Business Superhub now has Modem Mode

Sephiroth · 31-07-2015, 16:33

The engineer who set this up for me (in my capacity of working for a large company) did indeed turn the firewall off. When I advised him to turn it on, instead he remotely put the SH into modem mode, acknowledging that the IP address would be dynamic now. Of course the VPN side worked.

My understanding is that the IP relationship between the SH and the CMTS is dynamic and it is the L2TP tunnel set up by the firmware that maintains the static IP address passed on to user functions. Is that so?

In that case, if the dynamic IP address changes, would the tunnel still be able to retain the static IP address and would remote management using the static IP thus still work?

31-07-2015, 16:33	#186
Sephiroth Wisdom & truth Join Date: Jul 2009 Location: RG41 Services: RG41: 1Gig VOLT Rutland: Gigaclear 400/400 Posts: 12,928	Re: Virgin Business Superhub now has Modem Mode The engineer who set this up for me (in my capacity of working for a large company) did indeed turn the firewall off. When I advised him to turn it on, instead he remotely put the SH into modem mode, acknowledging that the IP address would be dynamic now. Of course the VPN side worked. My understanding is that the IP relationship between the SH and the CMTS is dynamic and it is the L2TP tunnel set up by the firmware that maintains the static IP address passed on to user functions. Is that so? In that case, if the dynamic IP address changes, would the tunnel still be able to retain the static IP address and would remote management using the static IP thus still work? __________________ *Seph.* My advice is at your risk.