Not sure what I'm doing wrong...

Hi all,

I'm trying to install NoCat and this is what happens:

[root@localhost nocat]# bin/gateway
[2005-04-20 17:52:48] Resetting firewall.
[2005-04-20 17:52:48] Detected InternalDevice ''
[2005-04-20 17:52:48] Detected ExternalDevice 'eth0'
[2005-04-20 17:52:48] Use of uninitialized value in concatenation (.) or 
string at /usr/local/nocat/bin//../lib/NoCat/Firewall.pm line 61, <FILE> 
line 2.
[2005-04-20 17:52:48] Detected LocalNetwork ''
[2005-04-20 17:52:48] Missing LocalNetwork directive required for 
NoCat::Firewall object!
iptables v1.2.11: host/network `windowsupdate.microsoft.com' not found
Try `iptables -h' or 'iptables --help' for more information.
[2005-04-20 17:53:19] Can't bind to port 5280: Address already in use. (Is 
another gateway already running?)
Can't call method "sockhost" on an undefined value at 
/usr/local/nocat/bin//../lib/NoCat/Gateway.pm line 64.

While I'm pretty good with Unix and MacOS X (don't laugh, it's Panther), I'm 
fairly new to Linux and I can't tell if this is a permissions thing or a 
network thing or a hardware thing or a Perl thing or what.  I've read the 
docs pretty thoroughly...

All help is greatly appreciated.

Dave.