-> Absolutely confirmed here.  Cable Modem goes next to a SWITCH.  From there   
   t    
   -> goes line to line to other hard switches OR to OTHER ROUTERS.  The WRT54G   
   is    
   -> one of such behind the cable modem via switch that handles it all back and    
   -> forth to the cable IP provider.    
        
   I have an odd setup there.  Business gateway with a Cisco 1U router    
   hooked to one port that controls the BBS network and then the SonicWall    
   Pro 2040 firewall which controls everything else that isn't on a public    
   IP address (the SonicWall itself takes up one public IP).    
       
   ... Beware programmers carrying screwdrivers.    
   --- Wildcat! v7.0.454.4 (Nov 28 2012), Editor Mod v1.7    
    * Origin: Neptune's Lair * Memphis TN * neptune.ddns.net (1:116/18)