What's going on is that I'm helping a friend who's on the verizon fios network. Verizon gives their customers a all-in-one modem/router/wireless ap device that he really dislikes, so he set it to bridge mode, therefore turning off all routing functions. This allowed the interface on the ASA to aquire a global ip address while plugged into the verizon device.
Verizon came out with a new modem/router wireless ap device that he wants to try. He read on the instruction manual that before the new device is installed, he must release the IP address, otherwise the new one will not get an address. So with this in mind, that's why he wanted to know if there was a gracefull way to relese the IP rather than just turning it off.
Unless there is a way to just release the ip address on the ASA, i'll just do as you suggested and have him turn it off, wait a few mins, and plug in the new device to see what happens.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...