Can a Router Have More Than One Public IP Address

[BigT]

@BigT Why don't they want single people placing multiple bets? Surely a bet's a bet... so they've got just as much chance of losing as winning, no?

Well I'd say paranoia. They would say that there is a disproportionately higher chance that such people are engaging in activity that guarantees profit and that has the potential to do the bookmaker out of profits because you won't be exhibiting the same behaviours or thought processes when placing your bets when compared to the people (mugs) they make more money out of. So yes a bet is a bet but they stand to make more profit off people not like you so they'd like you to go away.

Consider the qualifying bet. That tends to be as low odds a possible so that your qualifying loss is small. Lower odds means more chance of you winning from the bookmaker. Now compare it to the mug who just puts a bet on his/her favourite team/horse/first scorer etc. Often longer odds meaning more chance of the punter losing and the bookmaker winning.

Most matched bettors put real money on short odds qualifying bets that are quite likely to have the back side winning and thus the bookmaker losing. Then your free bet goes on something much longer to maximise profits. Invariably this goes to the exchange because the lay tends to win but the bookmaker doesn't win anything because it was a free bet, not your money they keep. so matched bettors tend to be a drain.

 

[fernando]

Hi guys. BT have said they can provide me with Business Broadband and 10 IP addresses. My question is, would the IP address assigned to a laptop from the pool of ten be the one that showed to an outside company(say a bookmaker) or would they see the one attached to the actual router. I'm not sure if the ten IP addresses are ones that would show internally for the business and an outside company would always see the actual router IP address.Hope that makes sense.

 

[skyripper]

Hi guys. BT have said they can provide me with Business Broadband and 10 IP addresses.

This is normal for a typical small business. It's so you can run a Web server on IP address X, a different Web server on IP address Y, an email server on IP address Z and not worry about conflicts etc. Also handy for point to point VPN connections etc.

/My question is, would the IP address assigned to a laptop from the pool of ten be the one that showed to an outside company(say a bookmaker) or would they see the one attached to the actual router. I'm not sure if the ten IP addresses are ones that would show internally for the business and an outside company would always see the actual router IP address.Hope that makes sense.

That doesn't make sense.
If they give you 10 public IP addresses, then you will need a suitable clever router to know "Traffic from my desktop? Use IP address A.", "Traffic from my IPad? Use IP Address B"... or you need to be suitably clever with your configuration.

Your laptop will be assigned an Internal IP address, not one of the public ones. Your router then does something called Network Address Translation, which funnily enough.. translates your internal network IP address to one on the public side - and vice versa.



I've just realised you're not the OP. What are you looking to achieve with your 10 different IP addresses?

 

[Steveocee]

This is normal for a typical small business. It's so you can run a Web server on IP address X, a different Web server on IP address Y, an email server on IP address Z and not worry about conflicts etc. Also handy for point to point VPN connections etc.



That doesn't make sense.
If they give you 10 public IP addresses, then you will need a suitable clever router to know "Traffic from my desktop? Use IP address A.", "Traffic from my IPad? Use IP Address B"... or you need to be suitably clever with your configuration.

Your laptop will be assigned an Internal IP address, not one of the public ones. Your router then does something called Network Address Translation, which funnily enough.. translates your internal network IP address to one on the public side - and vice versa.



I've just realised you're not the OP. What are you looking to achieve with your 10 different IP addresses?

It makes perfect sense.
The OP would get publicly routable addresses and the "LAN" IP address becomes non existent as the publicly routeable ones get designated to devices instead. There would be no NAT but OP would need ot make sure a VERY good firewall is in place on all connected devices, really not a consumer level thing to employ.

OP you really don't need additional IP space, it's this kind of wastage that is hurting the IPV4 pools and irresponsible lenders giving them away needlessly. I'm amazed they haven't asked you to fill out a justification sheet as that "should" have been thrown back in your face as not being needed.

 

[skyripper]

It makes perfect sense.
The OP would get publicly routable addresses and the "LAN" IP address becomes non existent as the publicly routeable ones get designated to devices instead. There would be no NAT but OP would need ot make sure a VERY good firewall is in place on all connected devices, really not a consumer level thing to employ.

It hadnt occurred to me that fernando was asking about plugging his laptop directly into the BT provided kit and using a public IP address off that. If you need to ask questions about whether something is a good idea on the public side of the internet, then you shouldn't be doing it in my head.
Yes, this would give a different IP from everything else behind the router.. and yes, it needs to be watertight firewalled, or its going to lead to much bigger fubars.

What I didn't see making sense was plugging in the laptop behind the router and having it magically get a different NAT'd public IP "just because". To do that takes advanced config.

OP you really don't need additional IP space, it's this kind of wastage that is hurting the IPV4 pools and irresponsible lenders giving them away needlessly. I'm amazed they haven't asked you to fill out a justification sheet as that "should" have been thrown back in your face as not being needed.

Agreed it is a waste of IPs. But if he's paying for them, he can do what he likes with them.
I saw a chart many years ago saying which organisations owned which public IPs. Seem to remember IBM and AT&T had thousands of [mostly unused] blocks. As did the U S Marine Corp, and some aircraft servicing branch of the USAF. No idea if that's still true. Anyhow, I'm rambling..

 

[skyripper]

What I didn't see making sense was plugging in the laptop behind the router and having it magically get a different NAT'd public IP "just because". To do that takes advanced config.

I take that back. A really easy way to do this is have 2 routers connected in parallel to the BT kit.
Configure your 2nd router to use a different public IP from your main router.
Plug your laptop into router 2 (or connect to it's wireless) - and bingo different Public IP as far as the bookmakers are concerned.

Nothing fancy needed in terms of equipment, routing rules, nothing needed in terms of different DHCP pools or VPNs etc.
Just plug into the right box and off you go.

 

[Sp00n]

Pretty sure the BT Business hub does 1:1 NAT so you just assign a public IP in the range to an internal IP.

Doesn't require advanced config, it's right there in the router admin pages.

https://btbusiness.custhelp.com/app...p-addresses-on-the-bt-business-hub-5?/c/5098/

 

[Orcvader]

What ISP is OP with anyway?

If he's with BT, could he not use the BTWi-fi network for the second IP? On default this should be enabled on the BT Homehub.