2degrees fiber - reducing IP address change frequency

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › 2degrees fiber - reducing IP address change frequency

timmmay

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#191128 25-Jan-2016 08:05

I run AWS servers, and as per best practice I lock down ssh access to specific IPs. Every week or three my 2degrees dynamic IP changes, and I have to change it in a few places in my setup.

Is there any way to reduce the frequency of this? I know it used to change a lot more often, Snap (back then) made some kind of change that made it less frequent, but can I do anything about it? Maybe some kind of keep alive ping or something? We have no devices using the internet overnight so it could be released due to inactivity I guess.

It wouldn't bother me if they had a consistent range, but they appear to have IP blocks all over the place. I normally add a /24 set of IPs so that if the last octet changes I can still connect but it usually changes outside that range.

25.01.16 03:26:21 Internet connection established successfully. IP address: 123.255.x.x, DNS server: 202.37.x.x and 202.37.x.x, Gateway: 111.69.x.x, Broadband PoP: SNAP-xx
25.01.16 03:26:10 PPPoE error: Timeout.
25.01.16 03:25:57 Internet connection cleared.
25.01.16 03:25:57 PPPoE error: Timeout.
25.01.16 03:25:43 PPPoE error: Timeout.
25.01.16 03:25:29 PPPoE error: Timeout.
25.01.16 03:25:15 PPPoE error: Timeout.
25.01.16 03:25:01 PPPoE error: Timeout.
25.01.16 03:24:47 PPPoE error: Timeout.
25.01.16 03:24:33 PPPoE error: Timeout.
25.01.16 03:24:19 PPPoE error: Timeout.
25.01.16 03:24:05 PPPoE error: Timeout.
25.01.16 03:23:51 PPPoE error: Timeout.
25.01.16 03:23:37 PPPoE error: Timeout.
25.01.16 03:23:23 PPPoE error: Timeout.
25.01.16 03:23:09 PPPoE error: Timeout.
25.01.16 03:22:55 PPPoE error: Timeout.
25.01.16 03:22:41 PPPoE error: Timeout.
25.01.16 03:22:27 PPPoE error: Timeout.
25.01.16 03:22:13 PPPoE error: Timeout.
25.01.16 03:21:59 PPPoE error: Timeout.
25.01.16 03:21:45 PPPoE error: Timeout.
25.01.16 03:21:31 PPPoE error: Timeout.
25.01.16 03:21:17 PPPoE error: Timeout.
25.01.16 03:21:03 PPPoE error: Timeout.
25.01.16 03:20:49 PPPoE error: Timeout.
25.01.16 03:20:35 PPPoE error: Timeout.
25.01.16 03:20:21 PPPoE error: Timeout.
25.01.16 03:20:07 PPPoE error: Timeout.
25.01.16 03:19:53 PPPoE error: Timeout.
25.01.16 03:19:39 PPPoE error: Timeout.
25.01.16 03:19:25 PPPoE error: Timeout.
25.01.16 03:19:11 PPPoE error: Timeout.
25.01.16 03:18:57 PPPoE error: Timeout.
25.01.16 03:18:43 Timeout during PPP negotiation.
25.01.16 03:18:43 Internet connection cleared.
25.01.16 03:10:29 Internet connection established successfully. IP address: 111.69.x.x, DNS server: 202.37.x.x and 202.37.x.x, Gateway: 111.69.7.69, Broadband PoP: SNAP-xx
25.01.16 03:10:18 PPPoE error: Timeout.
25.01.16 03:04:20 Timeout during PPP negotiation.
25.01.16 03:04:20 Internet connection cleared.
11.01.16 17:09:43 Internet connection established successfully. IP address: 123.255.x.x, DNS server: 202.37.x.x and 202.37.101.2, Gateway: 111.69x.x, Broadband PoP: SNAP-xx
11.01.16 17:09:29 PPPoE error: Timeout.

NonprayingMantis

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#1478028 25-Jan-2016 08:13

Get a static ip?

timmmay

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#1478032 25-Jan-2016 08:32

NonprayingMantis: Get a static ip?

It doesn't bother me quite that much.

BlueOwl

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#1478041 25-Jan-2016 09:02

Configure AWS to access connections from the whole 2 subnets 123.255.xx./16 & 111.69.x.x/16 (use whois to lookup the correct subnet sizes).

The chances that another 2Degrees customer in those subnets is going to try to break into your AWS is very low.

michaelmurfy

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#1478045 25-Jan-2016 09:17

Just use Amazons API to change your security groups when your IP changes w/ Cron + Linux:

http://www.edwiget.name/2013/11/automatically-changing-dynamic-ips-in-aws-security-group/

Michael Murphy | https://murfy.nz
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timmmay

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#1478048 25-Jan-2016 09:28

BlueOwl:

Configure AWS to access connections from the whole 2 subnets 123.255.xx./16 & 111.69.x.x/16 (use whois to lookup the correct subnet sizes).

The chances that another 2Degrees customer in those subnets is going to try to break into your AWS is very low.

Yes, that's true I guess, though I don't think I'll do that - I might piss off the wrong person ;)

michaelmurfy:

Just use Amazons API to change your security groups when your IP changes w/ Cron + Linux:

http://www.edwiget.name/2013/11/automatically-changing-dynamic-ips-in-aws-security-group/

Interesting solution thanks! I can't be bothered right now, plus I'm not sure I want my private key on an instance, but I might do that some time if changing IPs manually gets too annoying.

michaelmurfy

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#1478167 25-Jan-2016 12:34

timmmay:
BlueOwl:

Configure AWS to access connections from the whole 2 subnets 123.255.xx./16 & 111.69.x.x/16 (use whois to lookup the correct subnet sizes).

The chances that another 2Degrees customer in those subnets is going to try to break into your AWS is very low.

Yes, that's true I guess, though I don't think I'll do that - I might piss off the wrong person ;)

michaelmurfy:

Just use Amazons API to change your security groups when your IP changes w/ Cron + Linux:

http://www.edwiget.name/2013/11/automatically-changing-dynamic-ips-in-aws-security-group/

Interesting solution thanks! I can't be bothered right now, plus I'm not sure I want my private key on an instance, but I might do that some time if changing IPs manually gets too annoying.

I personally just do it via my router (an edgerouter) however if you've got a Raspberry Pi hanging around then just script it up on that.

ANglEAUT

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#1479402 26-Jan-2016 22:00

I switched over to 2D at the beginning of the month.

This is my list of notifications that the IP address has changed. Once a day is truly ridiculous.

Web address 163.47.220.157 - FRITZ!Box web address       03:26
Web address 163.47.220.157 - FRITZ!Box web address       25 Jan
Web address 163.47.220.157 - FRITZ!Box web address      24 Jan
Web address 123.255.21.215 - FRITZ!Box web address       23 Jan
Web address 123.255.21.215 - FRITZ!Box web address       22 Jan
Web address 123.255.23.51 - FRITZ!Box web address       21 Jan
Web address 163.47.220.101 - FRITZ!Box web address       20 Jan
Web address 163.47.220.101 - FRITZ!Box web address       19 Jan
Web address 111.69.225.113 - FRITZ!Box web address       18 Jan
Web address 123.255.27.119 - FRITZ!Box web address       17 Jan
Web address 123.255.23.174 - FRITZ!Box web address       16 Jan
Web address 123.255.23.174 - FRITZ!Box web address       15 Jan
Web address 123.255.23.174 - FRITZ!Box web address       14 Jan
Web address 123.255.25.228 - FRITZ!Box web address       13 Jan
Web address 111.69.217.2 - FRITZ!Box web address       13 Jan
Web address 123.255.22.176 - FRITZ!Box web address       12 Jan

Interestingly, my IPv6 address does stay static.

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Lorenceo

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#1479765 27-Jan-2016 12:18

My v4 address and v6 prefix only change if the PPP session renegotiates. I can reboot the modem, but the router still keeps its PPP session and just continues on from where it left off. Unless you have your equipment set to disconnect every so often, there may be something wrong with your line causing the PPP to drop, and hence IP change.

All of the above is assuming 2DG haven't changed the way their systems work recently.

ANglEAUT

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#1480291 27-Jan-2016 22:58

Lorenceo: All of the above is assuming 2DG haven't changed the way their systems work recently.

With my previous ISP (no FritzBox) I had less than one disconnect a week. 2D seem to be doing it daily.

Please keep this GZ community vibrant by contributing in a constructive & respectful manner.

UHD

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#1480297 27-Jan-2016 23:38

timmmay:

NonprayingMantis: Get a static ip?

It doesn't bother me quite that much.

/thread

timmmay

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#1480360 28-Jan-2016 07:06

UHD:

timmmay:

NonprayingMantis: Get a static ip?

It doesn't bother me quite that much.

/thread

That's petty and uncalled for. I was wondering if there was some setting or technique that would reduce the frequency of changing IP address. It's not significant enough to me to spend money on a static IP, but why would that mean I wasn't still interested in learning if there was some kind of configuration that reduced the frequency of this?

Perhaps you should think a little harder before you post.

sbiddle

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#1480369 28-Jan-2016 07:32

IcI:

Lorenceo: All of the above is assuming 2DG haven't changed the way their systems work recently.

With my previous ISP (no FritzBox) I had less than one disconnect a week. 2D seem to be doing it daily.

There are a couple of options in the Fritz!box that will cause a nightly disconnect if enabled and a number of threads on here that discuss this. I'm assuming these are enabled on your router?