> IPv6 address is recognized by AnyConnect for iOS, but with a 'null' > cidr. That was fairly much as I expected. Older clients without X-CSTP-Full-IPv6-Capability expect the IPv6 information to be presented differently - something like address/netmask in a single X-CSTP-Address header, instead of separate headers for IPv6 address and netmask. I forget but OpenConnect handles both and the commits where we added that should be enlightening. -- dwmw2
