fedora-users October 2011 archive
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fedora-users: Re: Unable to ssh nodes with global IP

Re: Unable to ssh nodes with global IP

From: Abu Attar Musharih <abuattar.musharih_at_nospam>
Date: Mon Oct 24 2011 - 02:32:56 GMT
To: Community support for Fedora users <users@lists.fedoraproject.org>

On Mon, Oct 24, 2011 at 12:30 AM, Rick Sewill <rsewill@gmail.com> wrote:
> Question to the OP please. Are you also behind your own router?
> Does it run NAT? If yes, is it configured to forward an ssh connection,
> from the Internet, to your local host?

No, I am not. I do not have any router. My laptop is connecting via
mobile broadband and have a global IP.
$ ifconfig
ppp0 Link encap:Point-to-Point Protocol
          inet addr:120.166.xx.xxx P-t-P: Mask:
          RX packets:4245 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4914 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:1253230 (1.1 MiB) TX bytes:948317 (926.0 KiB)
> How can one tell if one is behind a router that uses NAT?
> What is your local host's IP address?
> If your host's IP address is in the range, listed by rfc 1918,
> http://www.rfc-editor.org/rfc/rfc1918.txt
> -, -,
> or -, you are behind a router running NAT.

If I switch my connection to another provider, so that I have my own
router, and the IP of the nodes are no longer global, (IP range
192.168.1. 1 etc), I can ssh between them, as well as to outside.

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