Leasing more than one IP - Canadian TV, Computing and Home Theatre Forums

arez · 2011-11-30, 02:14 AM

Anyone successfully leasing more than one public IP address from Sasktel on a high speed service? This should be common, but I have had no success. SaskTel L1/L2 support has been of no help. So far, they have claimed I am the first person ever to make such request.

According to High Speed Ultra specification - "Dynamic IP addresses included: 8"

Tim Cake · 2011-11-30, 09:49 AM

You should look at an implementation of dynamic dns (D-DNS). Place a D-DNS client on all the pcs and it will update the dynamic IPs into hostnames on the dynamic dns servers. Do a little reading on this -- it should help with your problem.

arez · 2011-11-30, 11:04 AM

The primary issue is that I simply can't get a public address to work on the LAN.

SaskTel uses DHCP. The WAN interface gets a dynamic public IP and the LAN is NAT'ed 172.16.x.x address. My virtual office doesn't like to be NAT'ed... hence the need for a public IP.

SaskTel permits lease of of up to 8 IP on my service plan. I can configure the gateway (2WIRE) to lease the IP to my LAN connected device, but I can't get anywhere with it.

Tim Cake · 2011-11-30, 02:45 PM

That would be double nat... and in most cases getting it to work is problematical.

Are you using the little firewall in the adsl modem?
If so, I would recommend you resurrect an old pentium machine and install smoothwall on it. Go to www.smoothwall.org and look at the docs for their public domain (free of charge) firewall. They have various add-ins for VPN use. It also has packet filtering and re-directing capabilities which will be useful in your case.

Tikker · 2011-12-01, 11:05 AM

you need to get the 2wire set to bridge mode, and then connect it to a switch

from there, each pc will be able to grab a public DHCP address

Warren_G · 2011-12-07, 05:58 PM

Is it just that your virtual office needs an external IP address? If so, bridging the 2Wire will help if you have a switch. I am still not sure why you need more than one external IP address, I have had no trouble connecting 2 routers to my 2wire so I have 2 separate networks in the house. There hasnt been a single app, game or tool that hasnt worked just fine this way.

2011-11-30, 02:14 AM	#1
arez Rookie Join Date: Mar 2009 Posts: 2	Leasing more than one IP Anyone successfully leasing more than one public IP address from Sasktel on a high speed service? This should be common, but I have had no success. SaskTel L1/L2 support has been of no help. So far, they have claimed I am the first person ever to make such request. According to High Speed Ultra specification - "Dynamic IP addresses included: 8"

2011-11-30, 09:49 AM	#2
Tim Cake Join Date: Dec 2007 Location: Wherever work takes me! Posts: 98	D-DNS You should look at an implementation of dynamic dns (D-DNS). Place a D-DNS client on all the pcs and it will update the dynamic IPs into hostnames on the dynamic dns servers. Do a little reading on this -- it should help with your problem.

2011-11-30, 11:04 AM	#3
arez Rookie Join Date: Mar 2009 Posts: 2	DHCP Lease Issue The primary issue is that I simply can't get a public address to work on the LAN. SaskTel uses DHCP. The WAN interface gets a dynamic public IP and the LAN is NAT'ed 172.16.x.x address. My virtual office doesn't like to be NAT'ed... hence the need for a public IP. SaskTel permits lease of of up to 8 IP on my service plan. I can configure the gateway (2WIRE) to lease the IP to my LAN connected device, but I can't get anywhere with it.

2011-11-30, 02:45 PM	#4
Tim Cake Join Date: Dec 2007 Location: Wherever work takes me! Posts: 98	NAT That would be double nat... and in most cases getting it to work is problematical. Are you using the little firewall in the adsl modem? If so, I would recommend you resurrect an old pentium machine and install smoothwall on it. Go to www.smoothwall.org and look at the docs for their public domain (free of charge) firewall. They have various add-ins for VPN use. It also has packet filtering and re-directing capabilities which will be useful in your case.

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2011-12-01, 11:05 AM	#5
Tikker Join Date: Dec 2007 Location: SaskTel Posts: 895	you need to get the 2wire set to bridge mode, and then connect it to a switch from there, each pc will be able to grab a public DHCP address

2011-12-07, 05:58 PM	#6
Warren_G Rookie Join Date: Dec 2011 Posts: 1	Is it just that your virtual office needs an external IP address? If so, bridging the 2Wire will help if you have a switch. I am still not sure why you need more than one external IP address, I have had no trouble connecting 2 routers to my 2wire so I have 2 separate networks in the house. There hasnt been a single app, game or tool that hasnt worked just fine this way.