[CentOS] Re: alias ip-addresses at loopback

Robert Nichols rnicholsNOSPAM at comcast.net
Mon Sep 15 15:32:02 UTC 2008


Dmitry Cherkasov wrote:
> Hello everybody!
> 
> Could anybody advice on the following problem.
> I need to assign several ip-addresses to 'lo' interface (beside
> 127.0.0.1). It is convenient to me to implement NAT with such
> addresses.

The "lo" interface already accepts packets with any 127.x.y.z
address.  Do you really need more addresses than the 127.0.0.0/8
block?

     $ ping -c1 127.111.222.123
     PING 127.111.222.123 (127.111.222.123) 56(84) bytes of data.
     64 bytes from 127.111.222.123: icmp_seq=1 ttl=64 time=0.104 ms

I did absolutely nothing special to set that up.  I also routinely
have an stunnel process listening on 127.0.0.25:465, and again, I
did nothing special with the interface configuration or routing
tables to allow that to work.

-- 
Bob Nichols     "NOSPAM" is really part of my email address.
                 Do NOT delete it.



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