From: lew.pitcher@digitalfreehold.ca   
      
   On Monday 07 October 2013 15:27, in comp.protocols.tcp-ip, "Robert Wessel"   
    wrote:   
      
   > On Mon, 7 Oct 2013 08:11:28 -0700 (PDT), Nnaemeka David   
   >  wrote:   
   >   
   >>I never knew an interface could have several logical internet addresses.   
   >>Then, what use is multi-homing; why have several interfaces when one can   
   >>serve and you use that one for several addresses. That's precisely what   
   >>baffles me.   
   >   
   >   
   > You might want several IP addresses on your machine   
      
   And, often /do/ have several (at least, two) IP addresses on your machine:   
   the loopback (localhost.localnet) address of 127.0.0.1 counts as an IP   
   address.   
      
   > in order to host multiple services (keeping in mind that there are often   
   > better ways to do that),   
      
   Sometimes, a multi-homed host provides different services based on the   
   network. A multi-homed host may, for instance, provide different "virtual   
   host" web addresses, depending on whether the connection came from an   
   internal network or an external network. Often, an outward-facing   
   web-services host uses an inward-facing network connection to converse with   
   (say) it's database host, or it's logging host.   
      
   > provide routing between parts of the network,   
      
   A smart router, with firewall, is often implemented /as/ a multi-homed host.   
      
   > or to provide connections to disjoint networks.   
      
   > OTOH, multiple physical interfaces allow for redundant connections,   
   > increased throughput, routing and connection to disjoint networks.   
   >   
   > Parts of those lists are completely independent of each other.   
      
      
   --   
   Lew Pitcher   
   "In Skills, We Trust"   
   PGP public key available upon request   
      
   --- SoupGate-Win32 v1.05   
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