More Than One IP On A Single Phone Line ?

Bint Box · 20 Jan 2015 at 09:09

Hi,

I am thinking about upgrading my BT Infinity home user to the business equivalent to get a fixed IP. BT charge £5.50 per month for one fixed IP or £8.50p per month for 5 fixed IP's.

Currently, I only have one phone line for broadband, does this mean that I am limited to one IP at any given time down that line from my BT? If a wanted to host two or three small web sites each one with a different fixed IP, would I need a separate phone number/line for each one?

Thx for any advice.

skyripper · 20 Jan 2015 at 09:23

Either use different port numbers, or have your websites deal with different requests using Host headers.

Ixel · 20 Jan 2015 at 09:37

Bint Box said:
Hi,

I am thinking about upgrading my BT Infinity home user to the business equivalent to get a fixed IP. BT charge £5.50 per month for one fixed IP or £8.50p per month for 5 fixed IP's.

Currently, I only have one phone line for broadband, does this mean that I am limited to one IP at any given time down that line from my BT? If a wanted to host two or three small web sites each one with a different fixed IP, would I need a separate phone number/line for each one?

Thx for any advice.

No, you can buy the five fixed IP's. All you can do then is setup your router LAN IP address to the one they specify as your 'gateway' (or something like gateway, sometimes they call it 'router'), with a subnet of typically 255.255.255.248, then the other network devices such as the server would use an IP from the available range. NAT would be disabled and you'd need to most likely configure static routing for these IP addresses as well. I have had the same amount when I was with BT Business until I moved to Zen, but Zen offer me the same amount too (without an additional charge as far as I can tell). For LAN IP address allocation you may well need a seperate router to handle that, on my network I have the ASUS DSL-AC68U as my main router with NAT disabled and public IP address allocation, and an ASUS RT-AC68U with one of the public IP's allocated to it as the external static IP and LAN IP as 192.168.1.1 as usual with DHCP and NAT enabled.

Sp00n · 20 Jan 2015 at 11:22

Virtualhosts or reverse proxy

DJMK4 · 20 Jan 2015 at 12:06

If the provider can allocate you a /30 this means you could have "2" usable IP's, one should already be used by your connection, the other a spare usable, or if they allow for a /29 this would give you 6 usable host IP's, however standard home packages may not allow you to do this.

Its mainly providers that deal with business customers and circuits.

No harm in trying though, they may charge you to carve up in to a different mask.

However generally you would utilise NAT and other methods to do what you want to do if your on a non-business based ISP, to conserve IP space.