I have the same setup here (Slug and Netgear router). 
Cayenne-uk wrote:
> I suspect that the netgear isn't accepting the slug connection because it is
> outside of the IP range, which cannot be extended to cover it.
>   
The Netgear IP range is just the ones *it* will assign using DHCP.  It 
doesn't limt the addresses it will route.
> It looks like I will have to try using Ubuntu to connect direct, an alter
> the IP addy to be in range
The problem you have is, I think, one of subnetting.  Your linux and XP 
machines are all on the Netgear's default subnet, 192.168.0.x, while the 
Slug is on the 192.168.1.x subnet, and a machine on one subnet will not 
normally see one on the other, even if they are connected directly together.
What I did was temporarily assign a second IP address to the Ethernet 
card on my Linux box:
    ifconfig eth0:1 192.168.1.10
I could then access the default 192.168.1.77 address on the SLUG, and 
change it's IP address to 192.168.0.77 through the Web interface.  After 
that, I could see it from any box on the LAN.
Simon