vpn client adapter DHCP IP reservation

[MARK BAKER]

We are currently using DHCP to assign IP addresses to vpn users connecting to our VPN3000.

I was looking into the possibility to reserve addresses through dhcp, but have run into an issue. I see that a DHCP client unique-id is listed in dhcp allocations. I thought I could reserve an address using this identifier(longer than a MAC address), but found that it changes from time to time and therefore could not be used for a DHCP reservation.

My question; is it possible to configure the dhcp unique-id on the cisco vpn client(virtual adapter)to keep it from changing. Currently, whenever I close the cisco vpn client and re-open it, a new unique-id is generated making it impossible to reserve an address in dhcp.

Thanks for any information,

Mark

[bogdahnt]

Hi Mark,

what I use at one of my customers is that I identify clients by their hostname and reserve ip addresses for every hostname.

Parts of the DHCP config looks like this:

...

...

class "hostname01" { match if option host-name = "hostname01";}

class "hostname02" { match if option host-name = "hostname02";}

subnet 0.0.0.0 netmask 0.0.0.0 {

pool { range 192.168.0.1; allow members of "hostname01"; }

pool { range 192.168.0.2; allow members of "hostname02"; }

It is not directly an answer to your question but maybe it helps to soleve your prob ;o)

Rgrds

Thomas.

[MARK BAKER]

Thomas,

Thanks for the suggetion.

Since the requirement to reserve addresses to remote access users is small, this would be a viable solution.

Thanks,

Mark