Cisco firewall filtering Tor?

Ringo Kamens 2600denver at gmail.com
Fri Jun 15 00:31:05 UTC 2007


It's probably just blocking by IP address.
Comrade Ringo Kamens

On 6/14/07, Jay Goodman Tamboli <jay at tamboli.cx> wrote:
> I'm stuck behind a FascistFirewall part of the day, and I've been
> trying to get Tor to work as a client. I've added a line to my torrc:
>
> ReachableAddresses *:443
>
> Oddly, I can see that Skype is using TCP connections on port 443. I
> can't tell if they're working, but Skype is keeping them up (and Skype
> as a whole seems to be working).
>
> Tor, on the other hand, is not working. netstat shows established
> connections on port 443, but Tor doesn't seem to be accepting them as
> usable. I have debug logging on, but I'm not sure what to look for,
> since it seems to be trying to create circuits in parallel. Is there a
> message printed when a OR connection fails, giving a reason?
>
> Is it possible the firewall is looking at the :443 connections and
> somehow telling that it's Tor rather than HTTPS?
>
> /jgt
> --
> http://tamboli.cx/
>



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