[Newbie] Installed relay, but no traffic

[andrew cooke <andrew@xxxxxxxxxx>]

Hi,

I installed Tor (v0.2.1.26) on Linux yesterday.  As far as I know, I 
configured it to be a relay.  The log ends with

Dec 05 18:15:05.509 [notice] Bootstrapped 100%: Done.
Dec 05 18:15:05.509 [notice] Now checking whether ORPort 
71.192.164.111:9001 and DirPort 71.192.164.111:9030 are reachable... 
(this may take up to 20 minutes -- look for log messages indicating 
success)
Dec 05 18:15:13.761 [notice] Self-testing indicates your DirPort is 
reachable from the outside. Excellent.
Dec 05 18:16:06.835 [notice] Self-testing indicates your ORPort is 
reachable from the outside. Excellent. Publishing server descriptor.
Dec 05 18:16:18.602 [notice] Your DNS provider gave an answer for 
"pmsxxrb3tc7t4", which is not supposed to exist.  Apparently they are 
hijacking DNS failures. Trying to correct for this.  We've noticed 1 
possibly bad address so far.
Dec 05 18:22:14.185 [notice] Performing bandwidth self-test...done.

which appears to be correct (Comcast is screwing with DNS).

However, I don't see any "unexpected" traffic on etherape.  I am not 
using it myself (I just wanted to add a relay to the system) and am on a 
cable modem with dynamic IP (which is tied to acooke.dyndns.org).

Have I done something wrong?  Is it normal to have no traffic?

Also, what is a suitable value for the bandwidth setting?  This is just 
a "normal" residential Comcast cable modem in CT (the Linux box is 
connected to the cable modem on one NIC; a wifi router running as a 
simple hub is connected to another NIC; other computers in the house use 
wifi routed through this box.  It's running opensuse 11.3)

Thanks, and apologies in advance if I am doing something dumb.
Andrew