we're getting IP conflicts on our network. it appears that the VPN connection from another site is grabbing an IP that used for a printer.

Is there anyway I can set the VPN link so that the router on the other end uses a specific IP? when I run arp -a on the local LAN is shows our Draytek 2800 using 2 IP's on the same MAC address: xxx.xxx.xxx.1 - router IP and xxx.xxx.xxx.202 as the VPN. Ideally we've like to shift this to another IP address higher up in the /24 range.

The different ends of the VPN tunnel should be on different subnets. It sounds like yours are on the same.

There is some control over the .20x address. The start range can be set via VPN -> PPP General Setup

Each PPTP VPN uses the next IP available in that range, 202,203,204 etc.

Look for a free range of 16 addresses and set the start IP as the first ip.

Thanks guys. I just needed to change the VPN start address and all is well now