[isf-wifidog] Blocking streaming content...

Samuel Leathers disasm at gentux.org
Lun 24 Juil 10:24:13 EDT 2006

I'm no expert, but usually a firewall rule usually allows any application
that already has "state" to stay connected. So after a logout, if an
application is continuously open from before the logout, it won't
disconnect that application. Same would be true for an ssh tunnel. Now as
soon as you close the streaming program, and try to re-open it, it
shouldn't allow access anymore. I don't think wifidog controls this
firewall rule, it's more of in your firewall initialization script.
(/etc/init.d/S45firewall on openwrt)
These look like the culprit on openwrt's default firewall script:
28  iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
51  iptables -A OUTPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
72  iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT

Someone correct me if I'm wrong on this.

> Hi all,
> I have just been listening to www.pandora.com (which is awesome I have to
> say!) and without shutting down the Pandora window, logged out of
> wifidog...
> and the music didn't stop. Is this expected behaviour / a known bug in
> wifidog? The gateway apparently correctly blocks any new requests made by
> a
> logged out client, but allows already streaming content to continue...
> Once again I have Googled the mailing list archives and wifidog.org
> website
> to no avail. Does anyone (everyone?) experience streaming content being
> allowed to continue after client logout? Am I once again overlooking
> something obvious?
> I hope this topic has not already been covered and solved, but if so, I'd
> much appreciate being pointed in the right direction.
> Thanks in advance,
> Tarken
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