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Seph83
Winter is Coming
Premium
join:2004-04-29
Blairsville, GA
Reviews:
·Blue Ridge Mount..
·Windstream

I have the same external IP address as someone else...

... who lives a few miles from me. Both of our IP addresses are 66.119.108.xxx(the last three digits are the same for both of us, I just left them blank for security purposes), but our routers show 10.0.0.10 for him and 10.0.0.13 for myself. When I go to 10.0.0.1, which is my gateway, it does try to log into my ONT, but I do not have the access to it, so I can't do anything there.

We are both connected to the same Fiber POP, so I'm guessing that's why we share an external IP address, and I guess the POP gives us LAN-style addresses.

Maybe that's why the trace routes have a few more hops than it seems like it should:

  1    <1 ms    <1 ms    <1 ms  www.asusnetwork.net [192.168.1.1]
  2    <1 ms    <1 ms    <1 ms  10.0.0.1
  3     1 ms     1 ms     1 ms  172.20.72.1
  4     1 ms     1 ms     1 ms  66.119.108.129
  5     2 ms     2 ms      2 ms  10.0.62.1
  6     2 ms     2 ms     2 ms  192.34.172.217
  7     5 ms     5 ms     5 ms  te0-7-0-16.ccr21.atl04.atlas.cogentco.com [38.12
2.46.185]
  8     5 ms     6 ms     5 ms  be2036.mpd21.atl01.atlas.cogentco.com [154.54.3.
173]
  9    16 ms    16 ms    16 ms  te0-4-0-7.mpd21.dca01.atlas.cogentco.com [154.54
.25.249]
 10    18 ms    17 ms    18 ms  be2044.mpd21.iad02.atlas.cogentco.com [154.54.24
.98]
 11    18 ms    18 ms    18 ms  38.122.63.14
 12    19 ms    20 ms    19 ms  209.85.252.80
 13    19 ms    19 ms    18 ms  72.14.236.152
 14    30 ms    30 ms    31 ms  209.85.241.222
 15    31 ms    30 ms    31 ms  209.85.251.228
 16     *        *        *     Request timed out.
 17    31 ms    31 ms    30 ms  vb-in-f147.1e100.net [173.194.73.147]
 
Trace complete.
 

I'm just curious as to why my ISP would share IP addresses between customers. Seems like that could be a bad idea with all the NSA and Piracy laws and such.

Anyone with any knowledge of why this is done the way it is, or anyone with any ideas of how to get my ISP to remedy it would be greatly appreciated.
--
"If you would take a man's life, you owe it to him to look into his eyes and hear his final words. And if you cannot bear to do that, then perhaps the man does not deserve to die." - Eddard Stark


More Fiber
Premium,MVM
join:2005-09-26
West Chester, PA
kudos:32

1 recommendation

It's called Carrier Grade NAT.

Why do they do it? IPv4 address exhaustion.

Are they likely to change it? No.
--
There are 10 kinds of people in the world; those who understand binary and those who don't.


Seph83
Winter is Coming
Premium
join:2004-04-29
Blairsville, GA

2 recommendations

So that's why they charge $65 for a static IP address... Sounds like they need to switch to IPV6.

Thanks for the info. Much appreciated.


Seph83
Winter is Coming
Premium
join:2004-04-29
Blairsville, GA
Reviews:
·Blue Ridge Mount..
·Windstream
reply to More Fiber
I emailed the technical support regarding CGN/IPv6 last night, and got a phone call a few minutes ago. The tech told me that they do not currently offer IPv6. The tech also said that they would be willing to bridge my connection, where I would pull my own public IP address. Said it might take a few days, depending on IP availability, but that they should be able to do this for me. So I call it a win.
--
"If you would take a man's life, you owe it to him to look into his eyes and hear his final words. And if you cannot bear to do that, then perhaps the man does not deserve to die." – Eddard Stark


Killa200
Premium
join:2005-12-02
Southeast TN
Reviews:
·Charter
reply to Seph83
You wouldn't strictly want a public ipv6 address either way, as you'd not be able to access the majority of the internet without additionally having a public ipv4 address as well.

Sounds like in your case you took the best route to solving this.


Seph83
Winter is Coming
Premium
join:2004-04-29
Blairsville, GA
Reviews:
·Blue Ridge Mount..
·Windstream

1 recommendation

reply to Seph83
Public IP address is a success! I received a phone call a few minutes ago saying that I'm good to go. Glad to finally have an ISP that is willing to work with customers, and not just resort to the ol' "smoke and mirrors" tactics!

Also, one nice thing about getting rid of CGN is that it cut 3 hops out of my traceroute to Google!

Thanks to More Fiber for letting me know what exactly it was that caused my confusion, and thanks Killa200 for the info as well! And thanks to the BRMEMC for being awesome!
--
"If you would take a man's life, you owe it to him to look into his eyes and hear his final words. And if you cannot bear to do that, then perhaps the man does not deserve to die." - Eddard Stark


rchandra
Stargate Universe fan
Premium
join:2000-11-09
14225-2105

1 recommendation

reply to Seph83
Yes, yes they do. Or more precisely, not switch to it, but offer it (dual stack).

In the meantime, you could set up an Anything In Anything (AYIYA) tunnel with SixXS. It's far from perfect, but at least it would restore end-to-end connectivity and bypass any CGNAT/LSNAT silliness.

Me, I'm on Hurricane Electric, but that's 6in4 which is unlikely to be supported in your (old) environment.
--
English is a difficult enough language to interpret correctly when its rules are followed, let alone when a writer chooses not to follow those rules.

Jeopardy! replies and randomcaps REALLY suck!