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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Selection of Appropriate Local SMTP Relay
why not use the 127.0.0.0/8 space ... :) > 223.255.255.2 - Secondary DNS > 223.255.255.3 - SMTP Mail > 223.255.255.4 - Time Server > > You could very easily support this in ANY network. No additional > HW/software required. > > Specifically: > > config> ip route 223.255.255.1 255.255.255.255 dns.ser.ver.addr > config> ip route 223.255.255.3 255.255.255.255 smtp.ser.ver.addr > > and so on. > > You then add an alias on the loopback interface for the "well known" > address and make sure your dns/smtp daemon binds to it. > > Easy to implement, easy to explain, no additional coding changes required, > although it would be nice to have stuff ship with these pre-configured. > > All that you need is a chunk of address space reserved for this and a list > of services, each assigned to an address. > > I think that, barring the need to find/get the IP address block, it should > take only a day or so to build an appropriate list of services. > > The main DNS detractor that I see is figuring out how to hand out DNS > server numbers in a CONSISTENT, RELIABLE fashion for roaming users. > > Remember, that the purpose of this is for someone to be able to find the > "correct" server to provide the services which a roaming user will find at > different locations depending on where they are dialing in, thus, a > config for a user would be: > > DNS Servers - varies by location > SMTP server - varies by location > pop3/imap server - always home isp > time server - varies by location > > etc.... > > Thus the table would only list those services which should vary based on > where the user is dialing in/connecting. > > - Forrest W. Christian ([email protected]) KD7EHZ > ---------------------------------------------------------------------- > iMach, Ltd., P.O. Box 5749, Helena, MT 59604 http://www.imach.com > Solutions for your high-tech problems. (406)-442-6648 > ---------------------------------------------------------------------- > >
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