Update LinkSys VPN endpoints with DHCP-assigned WAN IPs

May 23, '03 09:51:00AM

Contributed by: Anonymous

We use LinkSys BEFSX41 router / gateway / firewall / VPN appliances to interconnect the LANs at three sites via VPN. Since two of the sites have DHCP-supplied WAN IP addresses, we needed a way to notify the other sites when the LinkSys' WAN IP address changes. This is required so the Remote Security Gateway's IP address for the VPN tunnel can be updated.

Since the addresses don't change that often, I wrote a script to detect any change and send email to the interested parties. If you are interested, that script is available for download (download 2KB script), and usage is explained in the script comments.

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