Untangle appliance question

[occsean]

One of my clients wishes to drop their static ip in order to save some money. Currently the IP does not have any other dedicated functions other than being the WAN interface on the untangled dedicated appliance.

The only reconfiguring I can think of would be me having to recompile the Open VPN GUI clients to use DDNS rather than the static. It's my understanding that untangle runs its own client for DDNS mappings and it's as simple as signing up for No-Ip or something similar then changing the interface from static addressed to DHCP.

I'll be changing the modem over at the same time as there will no longer be a requirement to lease from Comcast without the static.

Anything I'm missing here or should be aware of?

Thanks.


I don't have a signature

 

[YeOldeStonecat]

Correct, Untangle has a section for its dynamic DNS support config, under Config/Network/Hostname tab..there is a checkbox. Once enabled there's a drop down menu to select which of the many Dynamic DNS services its built in client supports, and the user/pass info.

You'll want to change the host name to match the dynamic dns name.
And then re-compile the OpenVPN config and update the client with it.

...and then wrestle with getting the new Comcast gateway to bridged mode so it will pass the public IP to the Untangle appliance. Some of the new Technicolor gateways are a pain_in_the_butt to bridge. Well..sliding the little button to "Bridge Mode" is easy..but getting the gateway to actually release a public IP to a device behind it...can sometimes take a LOT of power cycles. Sometimes it works easy, other times...ugh. And they take soooo long to reboot...just shoot me now!

 

[Markverhyden]

I stopped using the bridge mode switch a long time ago, way too many problems. My experience has been if I just disable DHCP it'll pass the public IP, static or dynamic.

 

[tek9]

Correct, Untangle has a section for its dynamic DNS support config, under Config/Network/Hostname tab..there is a checkbox. Once enabled there's a drop down menu to select which of the many Dynamic DNS services its built in client supports, and the user/pass info.

You'll want to change the host name to match the dynamic dns name.
And then re-compile the OpenVPN config and update the client with it.

...and then wrestle with getting the new Comcast gateway to bridged mode so it will pass the public IP to the Untangle appliance. Some of the new Technicolor gateways are a pain_in_the_butt to bridge. Well..sliding the little button to "Bridge Mode" is easy..but getting the gateway to actually release a public IP to a device behind it...can sometimes take a LOT of power cycles. Sometimes it works easy, other times...ugh. And they take soooo long to reboot...just shoot me now!

I have one customer down in Maryland using Comcast with a Static IP. I think they're using that gateway you mentioned. It looks similar, anyhow. I did the switch to Bridge Mode but when we spoke to Comcast about another issue a few days later, they said that sliding the bridge mode thing doesn't really put it in bridge mode. They have to change the modem to "Pass-Through" mode on their end to allow the Untangle appliance to work in true router mode. So it seems Bridge mode and Pass-Through mode are not one and the same? If so, what IS bridge mode?

 

[YeOldeStonecat]

So it seems Bridge mode and Pass-Through mode are not one and the same? If so, what IS bridge mode?

The business gateways (like the SMC Gateway) use the term "Public Subnet Passthrough"....I set them up all the time like that...you flip that feature on, and then you manually assign one of the static IPs to your device...and it uses the WAN IP of the gateway for their gateway.

But the residential models don't have that feature, it's just "bridge mode". At least the models up where I'm at. Ciscos, and now these Technicolors. Same looking web admin between the old Ciscos and the new Technicolors..and with the Ciscos I'd always just flip that switch and reboot, and then bounce your device..and whammo your device has the public IP. But with the Technicolors..same proceedure..and it can take a few reboots of both to have your device getting the public IP.