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PlusNet IP ranges

Peterworks
Grafter
Posts: 60
Thanks: 5
Registered: 17-02-2008

PlusNet IP ranges

Hi,
As part of my paranoia I monitor the IP address I am given on each startup. So far (about 3 years) it has always started with 87. but on Wednesday 1st Dec it changed to 91.125.***.***. Doing a tracert I found this was a bona fide PlusNet IP.
Do PlusNet publish their DHCP ranges ?
Thanks
Peter
9 REPLIES
jojopillo
Grafter
Posts: 9,786
Registered: 16-06-2010

Re: PlusNet IP ranges

Hi Peterworks,
It's not something we publish, not particular reason for that AFAIK but the 91. ip addresses are one we've recently reclaimed from our brightview network.
Jojo Smiley
Peterworks
Grafter
Posts: 60
Thanks: 5
Registered: 17-02-2008

Re: PlusNet IP ranges

Thanks JoJo for your quick response.
Do PN use the whole 91 range ?
Also, in this day and age of trying to safeguard ourselves from 'them', would it not be fairly easy to publish your DHCP ranges ? I'm not sure how other PN users would view this but I would find it very comforting from a security point of view.
Regards,
Peter
foxtrck
Grafter
Posts: 110
Registered: 30-06-2010

Re: PlusNet IP ranges

The DHCP range is publicly available via leaked databases of our IP addresses, you just have to decipher the start and endpoint of the range, but it should be easy given the amount of IP's that were leaked from Plusnet and ACS.
Community Gaffer
Community Gaffer
Posts: 13,318
Thanks: 1,104
Fixes: 89
Registered: 04-04-2007

Re: PlusNet IP ranges

Quote from: foxtrck
The DHCP range is publicly available via leaked databases of our IP addresses

It's not a database, it's a couple of spreadsheets. Given the relatively small number of entries on it as well it almost certainly doesn't include all of our ranges.
For the benefit of the OP/others, I think this covers most of them:
80.189.0.0/16
91.125.0.0/16
195.166.128.0/19
212.56.64.0/18
212.159.0.0/17
81.174.128.0/17
80.229.0.0/16
84.92.0.0/15
87.112.0.0/14
46.208.0.0/16

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

foxtrck
Grafter
Posts: 110
Registered: 30-06-2010

Re: PlusNet IP ranges

Is it at all possible to request a specific ip from one of those ranges when using static?
dratddestroyer
Grafter
Posts: 164
Registered: 27-09-2007

Re: PlusNet IP ranges

Have a look at this page. I think it answers your question.
http://www.plus.net/support/broadband/products/IP_addresses_broadband.shtml
Peterworks
Grafter
Posts: 60
Thanks: 5
Registered: 17-02-2008

Re: PlusNet IP ranges

Thanks again to Joanne Pilson, foxtrck, Bob Pullen and dratdestroyer.
Although these responses help a great deal I would have thought PN should have a definitive list and, as Joanne Pilson says, there should be no reason why this cannot be published. I would imagine the PN engineers would need to be aware of them all anyway and, as such, they would be documented.
Regards,
Peter
Community Gaffer
Community Gaffer
Posts: 13,318
Thanks: 1,104
Fixes: 89
Registered: 04-04-2007

Re: PlusNet IP ranges

Quote from: Peterworks
Although these responses help a great deal I would have thought PN should have a definitive list and, as Joanne Pilson says, there should be no reason why this cannot be published.

They are documented. That's what I posted. The IPs are in CIDR notation.

Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵

Peterworks
Grafter
Posts: 60
Thanks: 5
Registered: 17-02-2008

Re: PlusNet IP ranges

Bob,
Sorry I misunderstood you as you said "I think this covers most of them:"
I will take this as the definitive list.
Thanks
Peter