Dialup users getting fixed IP addresses from a router

Unanswered Question
Sep 20th, 2007

Is it possible to configure a router with local user database and provide static addresses to remote dialup clients based on username in the local database. This is a standalone 2800 solution with primary rate ISDN and Digital onboard modem module.

I know this is possible using external Radius / Tacacs

Thanks & regards,


I have this problem too.
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Paolo Bevilacqua Mon, 09/24/2007 - 11:04

You can have them authenticate in tty mode and then start autocommand ppp for each different user as optionfor username command, for each specifying the ip address to use.

Hope this helps, please rate post if it does!

markturner Tue, 09/25/2007 - 00:44


Thanks for your feedback. Does this mean the client would have to bring up their terminal window as part of their windows setup to authenticate first. Not sure if the client will go for this one..



markturner Wed, 09/26/2007 - 00:50

Thanks guys.... I have another question about allocating an IP address on the same range as the LAN side.

e.g. LAN address of the router the client must have e.g. /32 etc.

Has anyone done this before ?


markturner Wed, 09/26/2007 - 06:25

Thanks Aaron,

Wilk chck this out at the weekend...

Best regards,



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