CISCO SA540 firewall keep dropping the VPN
Posted on 2016-10-27
we using a BELL 1000 DSL modem with a static IP in the bride mode and setup my Cisco SA540 firewall as router connect to the modem, I setup this firewall a VPN connect to other branch office, it's good for 2 month.
but starting from 2 days ago, everyday it will randomly dropping the VPN 2 -3 times, every time reboot the firewall will connect the VPN again, I check the log file it keep saying like bottom, any idea? is that mean my IP in use or branch IP in use?
Thu Oct 27 16:03:53 2016 (GMT -0400): [Cisco] [IKE] ERROR: failed to bind (Address already in use).