Can't get Internet to work across 2nd Subnet

alapierre · 02-06-2010, 10:11 PM

I've found similar questions searching this forum, but still can't seem to get this one to work. I have two subnets joined by a Cisco 2811 Router acting as the gateway between the two subnets. I have the 192.168.106.0 network and the 192.168.107.0 network. The Cisco router has two interfaces setup on it, 106.254 and 107.254 to communicate across the networks. The setup was working fine with my previous firewall (Basic IPtables) but with Untangle I can't get it to work properly. My untangle server is 106.3, and if I add manually through the terminal routing commands for anything 107.0 to go to 106.254 I'm able to ping across both networks, but I can't get the internet to work. I'd like to know how I'm supposed to have this setup done in the GUI so I don't have to hack it via the Terminal.

So, what's the proper setup to bridge two subnets with a gateway between them and Untangle on one of those subnets? Thanks for any help you can give me. I'm running Untangle 7.11

dmorris · 02-06-2010, 10:27 PM

is the 107.x traffic going through untangle? is untangle in bridge mode? in between what? i thought 106 and 107 were physically separate?

i think a diagram would help.

just a guess, but I'd add a 107.3 alias on the external interface. don't do this stuff via the command line - that will likely on conflict with what untangle is doing

welcome to the forums!

alapierre · 02-07-2010, 06:55 AM

I can't post images or links since I'm new :-( But you can copy/paste this

i142.photobucket.com/albums/r96/andyrue/network.jpg

Untangle is in Router mode. Thanks for your help!

alapierre · 02-08-2010, 07:34 AM

I tried adding 107.3 as an external alias, but it's still doing nothing. I'm not sure that it would though, since nothing is looking for 107.3. The Cisco gateway points to 106.3. Is there a NAT rule I need to add for it to work?

alapierre · 02-08-2010, 08:15 AM

Ok, so I added 10.111.107.0/24 as an Internal Alias, and problem is solved now. Thanks for your help!

02-06-2010, 10:11 PM	#1 (permalink)
alapierre Newbie Join Date: Feb 2010 Posts: 4	Can't get Internet to work across 2nd Subnet I've found similar questions searching this forum, but still can't seem to get this one to work. I have two subnets joined by a Cisco 2811 Router acting as the gateway between the two subnets. I have the 192.168.106.0 network and the 192.168.107.0 network. The Cisco router has two interfaces setup on it, 106.254 and 107.254 to communicate across the networks. The setup was working fine with my previous firewall (Basic IPtables) but with Untangle I can't get it to work properly. My untangle server is 106.3, and if I add manually through the terminal routing commands for anything 107.0 to go to 106.254 I'm able to ping across both networks, but I can't get the internet to work. I'd like to know how I'm supposed to have this setup done in the GUI so I don't have to hack it via the Terminal. So, what's the proper setup to bridge two subnets with a gateway between them and Untangle on one of those subnets? Thanks for any help you can give me. I'm running Untangle 7.11

02-07-2010, 06:55 AM	#3 (permalink)
alapierre Newbie Join Date: Feb 2010 Posts: 4	I can't post images or links since I'm new :-( But you can copy/paste this i142.photobucket.com/albums/r96/andyrue/network.jpg Untangle is in Router mode. Thanks for your help! Last edited by alapierre; 02-07-2010 at 06:58 AM..

02-08-2010, 08:15 AM	#5 (permalink)
alapierre Newbie Join Date: Feb 2010 Posts: 4	Ok, so I added 10.111.107.0/24 as an Internal Alias, and problem is solved now. Thanks for your help! Last edited by alapierre; 02-08-2010 at 08:24 AM..

02-06-2010, 10:27 PM	#2 (permalink)
dmorris Untangle Junkie Join Date: Nov 2006 Location: San Mateo, CA URLs submitted: 10 Posts: 6,694	is the 107.x traffic going through untangle? is untangle in bridge mode? in between what? i thought 106 and 107 were physically separate? i think a diagram would help. just a guess, but I'd add a 107.3 alias on the external interface. don't do this stuff via the command line - that will likely on conflict with what untangle is doing welcome to the forums!

02-08-2010, 07:34 AM	#4 (permalink)
alapierre Newbie Join Date: Feb 2010 Posts: 4	I tried adding 107.3 as an external alias, but it's still doing nothing. I'm not sure that it would though, since nothing is looking for 107.3. The Cisco gateway points to 106.3. Is there a NAT rule I need to add for it to work?