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   NNTP-Posting-Date: Sun, 21 Jan 2007 21:37:27 -0600   
   Newsgroups: alt.os.linux.ubuntu   
   Date: Sun, 21 Jan 2007 19:37:25 -0800   
   From: Whoever    
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   Subject: Re: Wireless IP Broadcasting...   
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   On Sun, 21 Jan 2007, Moog wrote:   
      
   > Hello all,   
   >   
   > I could do with a little help/advice on a specific issue regarding   
   > connecting my laptop to my work network (full access rights - no firewall   
   > IP blocks)   
   >   
   > My home network is similar but uses Belkin Router/AP and works without any   
   > incident.   
   >   
   > OK. I've done as much trouble shooting as my limited knowledge of Ubuntu   
   > allows and the one difference I can see between the above problem and my   
   > trouble free connection at the same location in WinXP is the "broadcast IP"   
   > setting of 192.168.1.255.   
   >   
   > Question 1: Could this IP broadcast be sending the router or AP off the   
   > boil?   
      
   Very unlikely.    
   > and consequently   
   > Question 2: Which Config file would I need to edit to change the setting and   
   > any suggestions on settings to use in the IP range specified?   
      
   If you are using DHCP, then there is nothing that you should be changing.   
      
   >   
   > By the way, the routing table at /sbin/route looks fine. Google has also   
   > been rather unfriendly.   
      
   Define "looks fine". No don't -- just post the result of "route -n".   
      
   Can you ping the default gateway? Can you ping an external site like    
   yahoo.com? What happens when you try these? What happens when you ping    
   with a large packet:   
   $    ping -s 1500 yahoo.com   
      
   What happens when you use traceroute  to show the route to an exernal    
   website? Now try tcptraceroute to the same site, using port 80 as the    
   destination port. eg:   
   $  sudo tcptraceroute yahoo.com 80   
      
      
   >   
   > Thanks for your assistance.   
      
   You describe yourself as a newbie. You will get more help if you give more    
   information, rather than making judgements that may be wrong!   
      
   My immediate thought is that there could be issues with proxies rather    
   than IP configuration.   
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