Re: diald vs ipmasquerade
"Brian M. Rectanus" wrote:
>> At 09:38 AM 11/22/97 +0000, Chuma Agbodike wrote:
>> >Do diald and ipmasquerading serve the same purpose ?
>> >Or do I have to use both ? I have a 3 node ethernet lan.
>> >The all had windows on them. Now I installed Linux 2.0.29 (debian 1.3)
>> >on the unit that has the modem on it. And would like the other units
>> >to access the internet via the modem on LINUX unit.
>> >So I have diald running on the linux. The windows node have the
>> >linux unit as their gateway. But if I ping an IP diald doesn't dial.
>You cannot ping an IP. You have to ping an address that must be looked up
>Otherwise diald assumes that the ip in on your local net and no dial is
I don't understand what you are saying here. Diald works on the basis of
IP addresses only. If you ping a name, the very first thing that happens
is that gethostbyname() is called to look up the IP address from the name.
That _may_ involve a nameserver lookup across the network or it may be
relovable from cached data. If it is not cached it will send a query to
external nameservers, and that will cause diald to start the link.
Equally, diald will start the link if it receives any other kind of
packet for a remote site, provided that you have your routing correct.
(Don't forget that it has to call the nameserver itself in that manner.)
Oliver Elphick Oliver.Elphick@lfix.co.uk
Isle of Wight http://www.lfix.co.uk/oliver
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