From: unruh@invalid.ca   
      
   On 2021-08-07, Sidney_Kotic  wrote:   
   > On 8/6/21 4:11 PM, William Unruh wrote:   
   >   
   > Thanks for the reply.  Let me see if I can clear up some confusion.   
   >   
   > These are the relevant /etc/hosts entries.   
   >>> 192.168.1.2     crab   
   >>> 192.168.1.3     kraken   
   >>> 192.168.1.5     shrimp   
   >   
   >>> 10.10.13.4      c   
   >>> 10.10.13.2      k   
   >>> 10.10.13.3      s   
   >   
   > All the 192.168.1.* hosts are on wlan0.  All the 10.10.13.* hosts are on   
   eth0.   
   > So crab IS c depending on whether it's wlan0 or eth0.  On wlan0 its IP is   
   > 192.168.1.2 (and that's how it gets to the internet) and on eth0 it uses   
   > 10.10.13.4 for an IP address.   
      
   I understand that the computers are identical. But the names should not   
   be. It confuses the hell out of the system if one name as two separate   
   IP addresses (unless you really call them c,k, and s, but I was under   
   the impression that that was just your shorthand for crab, kraken and   
   shrimp.   
   Ie, are those actually your hosts entries, literally, or is c k and to   
   be read as crab kraken and shrimp? If it is literally c k and s then   
   that is fine, but then you also have to call them as c k and s, not as   
   crab, kraken and shrimp   
      
   >   
   >> I really have no idea what it is you are trying to do.   
   >   
   > I live in a building where there are WiFi routers everywhere.  Right now I   
   > could, if I had the correct password, use any one of the probably 20+ routers   
   > the computers see, if I had to guess I'd say there are about 150 WiFi   
   routers in   
   > this building.  All of those routers are fighting to use the same 2.4/5Ghz   
   > frequencies.  Heck when I had to get a replacement cable modem the company   
   gave   
   > me a new one that has a builtin WiFi router, meaning I have 2 WiFi routers   
   > running (ironically they're wired together with a cable, probably on   
   192.168.0.*   
   > network).   
   > By using the eth0, an old switch, and cables, I can pass traffic between c,   
   k,   
   > and s without adding to the WiFi traffic.  I often move large 1Gb to 2Gb   
   files   
   > between these 3 computers.  WiFi network throughput is often abysmal.   
   >   
   >> I would suggest that you give them different names on the two networks   
   >   
   > They do have different names, and IP addresses on different interfaces.   
   >   
   > To try and put it succinctly.   
   > 1.  All the computers work on the wlan0/192.168.1.* network.   
      
   Under what names?   
      
   > 2.  The hosts k and s work fine on the eth0/10.10.13.* network.  So it works.   
      
   Under what name   
      
   > 3.  Neither hosts k or s can initiate a connect to host c on the   
   eth0/10.10.13.*   
   > network.  This is the problem.   
      
   Are you sure that there is not some other machine with IP   
   10.10.13.4?   
      
   Are you sure that the answers are not sent on the wlan0 line?   
      
   > 4.  Host c can initiate connects to hosts k and s fine on the eth0/10.10.13.*   
   > network.  This is important as it shows the eth0 interface on host c does   
   work.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)