Block Of Six IP;s

Since FTTP (single static IP) was put in our village a few years ago I kept my ADSL2 (Block of 6 IP's) connection as a backup, FTTP has been rock solid, thinking about BT PSTN switch off I am now looking at getting rid of the ADSL2 isp then with the POT's phone going over to VOIP I will get rid of the BT copper pair as well making a saving of
£636 a year.

Problem. !
I want take my block of Six static public IP's with me to the FTTP isp !
But How ?.
Both isp's connections are out of contract by years.

Any Ideas ?

In reply to a post by APTMAN:

Any Ideas ?

Only possible if you use the same ISP for both types of connection, e.g. Plusnet for ADSL2+ and Plusnet for FTTP; and keeping the same account.

When an ISP issues you some static IP addresses they are part of the ISP own pool, and not portable between ISPs. Technically there is such a thing a provider independent space, but since IPv4 has been exhausted, very large blocks of addresses sell between ISPs for large amounts of money. Not for even small business scale.

What was already said: not happening between ISPs. Not your addresses, you're just renting them, and ISPs cannot trade anything smaller than a block of 256 so even if they wanted to send them to the other ISP they couldn't.

Afraid whatever you're doing with those IP addresses you're going to need to get more creative, use that ISP for FTTP or get some hosting. If ADSL 2+ has been adequate bandwidth hosting costs will be minimal.

Ok I see.

I suppose in a way both isp's are under the same parent company owner, they are both not very quick (if at all ) of answering my tickets.

Never paid for the block of ip's as it was a free promotion when ADSL 2 isp was owned by Kcom.

Also you could have a free domain name (not linked to the isp ) and I moved that away from the isp to a small uk hosting company at no charge..

I was hoping I could move the 'Block' as well.

I think I remember that had to be registered with 'Ripe'

Edited by APTMAN (Sun 29-Jun-25 15:14:57)

Can you upgrade to FTTP with your ADSL2+ ISP and retain the block?

Otherwise what people have said. If the services you're hosting out of a static block have reasonably low bandwidth requirements you could look at an A&A L2TP tunnel.

Trying to get away from the ADSL 2 isp as there service is rubbish since they took over from Kcom, They just do not answer any 'Tickets' .

Do we know what this is on AA ?. https://www.aa.net.uk/broadband/byoip/

I am looking at maybe porting my phone number to AA .

The other problem is I pay for our phones calls (After using up the first free 1000 minutes ) to ADSL 2 isp But still pay BT for the copper pair.!
So I do not know who holds our phone number.

In reply to a post by APTMAN:

The other problem is I pay for our phones calls (After using up the first free 1000 minutes ) to ADSL 2 isp But still pay BT for the copper pair.!
So I do not know who holds our phone number.

BT do. (I am assuming your outgoing phone calls are routed using "carrier pre-select", which means that instead of dialing a special code in front of outgoing calls to select a different carrier, the line is configured to do this automatically. This does not affect your phone number.

In reply to a post by APTMAN:

I want take my block of Six static public IP's with me to the FTTP isp !

As others have said, you can't, unless you buy your FTTP service from the same ISP as the ADSL2, and they agree to transfer your block of addresses over to the FTTP line.

On residential services the best you're likely to get these days is a single static IPv4 address plus a block of IPv6 addresses. Even then, many residential providers have dropped the option for static addresses (e.g. Plusnet)

You could rent a new block from your provider, and renumber your servers to the new addresses, but there are very few providers who offer blocks of addresses, primarily business providers. It's also quite common to pay an extra £2-£4 per month *per address*

Someone mentioned AAISP as an option. You could instead use the AAISP L2TP service, which lets you tunnel AAISP's IP addresses over a different provider. It cost £10 per month last time I looked, and has some limits on the speed and data volume transferred - although if you're used to ADSL2 then those may not be an issue.

However, my recommendation is to reconfigure your network to run on a single static IP address, which is what I've done. The details depend on exactly what services you want to run.

A simple approach if you are mainly running web services is to run Pangolin (the Fossorial stack). In fact, you don't even need a single public IP address, as long as you run Pangolin on a VPS which has one. It sets up encrypted wireguard tunnels between each of your servers to the Pangolin server, which accepts inbound connections, authenticates them, and forwards them to the appropriate server.

Otherwise, the general approach is that you run all your services on private IPv4 addresses and/or public IPv6 addresses, and then port-forward incoming connections from your router's one public IPv4 address to the relevant server(s). For example:

* Port-forward E-mail ports to your mail server (TCP 25, 110, 143, 465, 587, 993, 995)
* Port-forward 80 and 443 to a web reverse proxy. If you use something like sniproxy or haproxy which can do SNI sniffing, you can forward SSL connections to the correct backend server without decrypting the traffic and without needing its own certificate(s) for the domain(s) you use.

If you get a block of IPv6 addresses from your provider, then publish an AAAA record pointing directly at the target server, and an A record pointing at the proxy. Then any IPv6-capable clients can directly talk to your servers, and any IPv4-only clients will transparently go through the proxy.

Could you explain how you currently use the block of six address? or are they something you've had for many years but don't actually use them but also don't want to lose them?

If you actually need and use these IP addresses, it is probably time to investigate moving whatever you are running to IPv6