I am looking at moving from a Netgear UTM9s to an Untangle box on our small office network. We currently have a /28 block of IPs from AT&T. WIth the current set-up the modem is in bridge mode, the UTM9S handles the PPPoE and 1:1 NAT handles steering traffic from my external IP Aliases to the internal servers.
With Untangle PPPoE is very clearly NOT recommended so I would like to avoid it and still have use of our static IP pool. How can I do that?
The ADSL from AT&T is a Motorola 3360 that has three modes:
1: PPPoE on Modem automatic private IPs (default)
2: PPPoE on Modem Public IP handed to device (Untangle)
3: Bridge Mode (PPPoE and NAT handled by Untangle)
My first thought was #2 and it sounds like many users on the forums have it set up this way. However they don't mention using static IPs or 1:1. When I set it up this way it doesn't appear that the modem forwards set up our addition addresses. Reverse lookups start failing and picky servers stop accepting our email. I could change our PTR record to the gateway address and stick with #2 but then I think I lose the use of the other 4 IP address.
#3 works with our current setup but is not recommended with Untangle.
#1 is double NAT and no good.
Any ideas?
With Untangle PPPoE is very clearly NOT recommended so I would like to avoid it and still have use of our static IP pool. How can I do that?
The ADSL from AT&T is a Motorola 3360 that has three modes:
1: PPPoE on Modem automatic private IPs (default)
2: PPPoE on Modem Public IP handed to device (Untangle)
3: Bridge Mode (PPPoE and NAT handled by Untangle)
My first thought was #2 and it sounds like many users on the forums have it set up this way. However they don't mention using static IPs or 1:1. When I set it up this way it doesn't appear that the modem forwards set up our addition addresses. Reverse lookups start failing and picky servers stop accepting our email. I could change our PTR record to the gateway address and stick with #2 but then I think I lose the use of the other 4 IP address.
#3 works with our current setup but is not recommended with Untangle.
#1 is double NAT and no good.
Any ideas?