Hi. I have a peculiar problem and maybe someone around here can help me, or at least might find my story interesting.
A couple of months ago I set up my old Pi (a 256MB B model) to act as a simple surveillance system. I used a PS2 eyetoy as camera, forwarded the appropriate ports to my Pi´s IP and using Raspicam Remote on my Android phone I was able to check my home from anywhere. Since my ISP gives me dynamic IPs I setup a script that runs every 15 minutes and checks if my IP has changed and sends me an e-mail with the new IP. Everything worked just fine for a couple of weeks and then suddenly I started to get frequent IP changes , sometimes twice an hour. My router would drop internet connections and had to be reset just to drop the connection again some minutes later. Once I even found the router had "crashed" (all green lights turned red and no net service at all) and had to be reset. Just to be safe I rebooted all my Pi´s and everything was ok again. It worked fine for another couple of weeks and then the router started to act strangely again. I once had IP changes every 15 minutes! Again I rebooted everything (router AND Pis) and everything worked again without problems. It´s been a couple of weeks without that behaviour, but I wonder if the problem is that somehow the Pi is driving the router mad?
Anyway, a few days ago I discovered that I can´t reach my cam from the outside anymore. It works fine from within my lan, but when I use Raspicam Remote with my reported public IP it just doesn´t work. I´ve also tried pinging my IP and it drops every packet. Everything else works fine - I can watch videos, surf the net, read e-mails, etc.
Today I called my ISP´s support service and the person who answered my call insisted that the service was running ok. I asked she to ping my router and she asked my IP, which I found by using some of the many web sites available for that purpose. She asked me to check the IP as reported by the router so I entered the config options and under "System Status - WAN" there was a 100.xx.xx.xx IP. She then told me that 100.xx.xx.xx IPs are known to be incompatible with what I wanted to do (check my camera fron the outside) and that I had to wait until the system asigned me a different IP. (I found strange that the subnet mask was 255.255.255.255 and no default gateway was set, but since my knowledge about networking is pretty limited I just had to accept her "that´s normal" answer). So, first question:
1. Is it true that certain IPs (like the mentioned 100.xx.xx.xx) can be incompatible with certain services?
I also found very strange that the IP reported by the router was different from the one reported by the web service I was using. She told me that it had to do with the browser I was using and the web site and blah blah blah. But if I enter that IP (the one reported by the router) into the browser it sends me to its configuration page. So, second question:
2. Is it normal to have the router report a different IP than the one reported by those "My IP" services? Or it has no relationship at all?
Bottom line: I want to recover the ability to reach my router and check my camera from anywhere! Any ideas?
Thanks in advance.
Re: Can´t reach my router fron outside my LAN
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- DougieLawson
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- Joined: Sun Jun 16, 2013 11:19 pm
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Re: Can´t reach my router fron outside my LAN
100.xx.xx.xx is NOT a NAT address. 10.xx.xx.xx can be a NAT address.
To see what NATs are between you and the public internet run
traceroute -n 8.8.8.8
To see what NATs are between you and the public internet run
traceroute -n 8.8.8.8
Any language using left-hand whitespace for syntax is ridiculous
Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.
Any requirement to use a crystal ball or mind reading will result in me ignoring your question.
Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.
Any requirement to use a crystal ball or mind reading will result in me ignoring your question.
Re: Can´t reach my router fron outside my LAN
This is the result of traceroute:
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 192.168.1.1 1.619 ms 6.558 ms 6.845 ms
2 * * *
3 10.115.7.214 23.236 ms 27.235 ms 28.224 ms
4 10.111.3.101 28.712 ms 10.111.3.229 30.727 ms 10.111.3.233 32.686 ms
5 84.16.9.137 55.581 ms 56.253 ms 56.696 ms
6 94.142.124.250 171.475 ms 176.52.255.25 136.487 ms 134.960 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
I see a couple of 10.xx.xx.xx addresses in there... Am I being double NATted then?
traceroute to 8.8.8.8 (8.8.8.8), 30 hops max, 60 byte packets
1 192.168.1.1 1.619 ms 6.558 ms 6.845 ms
2 * * *
3 10.115.7.214 23.236 ms 27.235 ms 28.224 ms
4 10.111.3.101 28.712 ms 10.111.3.229 30.727 ms 10.111.3.233 32.686 ms
5 84.16.9.137 55.581 ms 56.253 ms 56.696 ms
6 94.142.124.250 171.475 ms 176.52.255.25 136.487 ms 134.960 ms
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
I see a couple of 10.xx.xx.xx addresses in there... Am I being double NATted then?
- DougieLawson
- Posts: 40588
- Joined: Sun Jun 16, 2013 11:19 pm
- Location: A small cave in deepest darkest Basingstoke, UK
- Contact: Website Twitter
Re: Can´t reach my router fron outside my LAN
Looks like it.
You're on Telefonica's mobile network at hop 5. Mobile networks do not allow you to run servers.
Search on here for Weaved IoT, they have a way to work with double NAT networks.
You're on Telefonica's mobile network at hop 5. Mobile networks do not allow you to run servers.
Search on here for Weaved IoT, they have a way to work with double NAT networks.
Any language using left-hand whitespace for syntax is ridiculous
Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.
Any requirement to use a crystal ball or mind reading will result in me ignoring your question.
Any DMs sent on Twitter will be answered next month.
Fake doctors - are all on my foes list.
Any requirement to use a crystal ball or mind reading will result in me ignoring your question.
Re: Can´t reach my router fron outside my LAN
How do you know it´s a mobile network? All I could find looking up for those ips (5 and 6 on the list) is that they belong to Telefónica.
I wonder if they´re changing users to these networks to prevent individuals from setting up servers on their homes... because my setup worked a few weeks ago and now it doesn´t.
I wonder if they´re changing users to these networks to prevent individuals from setting up servers on their homes... because my setup worked a few weeks ago and now it doesn´t.

Re: Can´t reach my router fron outside my LAN
Yeah , you're pretty much hosed. You either need to rent
a VPS to run OpenVPN (as server) / OpenSSH
(for reverse tunneling) or use a third party like
Weaved / yaler / ngrok.
ghans
a VPS to run OpenVPN (as server) / OpenSSH
(for reverse tunneling) or use a third party like
Weaved / yaler / ngrok.
ghans
• Don't like the board ? Missing features ? Change to the prosilver theme ! You can find it in your settings.
• Don't like to search the forum BEFORE posting 'cos it's useless ? Try googling : yoursearchtermshere site:raspberrypi.org
• Don't like to search the forum BEFORE posting 'cos it's useless ? Try googling : yoursearchtermshere site:raspberrypi.org
Re: Can´t reach my router fron outside my LAN
Thanks for your help guys. I´ll look for a solution (trying weaved iot right now).