At home I often stream music from my Macintosh laptop (OS 10.7.1) to my sound sytem usinf AirPlay/AirTunes. On my local LAN, the AirPlay device is located at 10.0.1.3 . Baseline Netwoork State established
I then connect to my university network using AnyConnect client (3.0.3054). University policy disallows local LAN access during VPN connectoins, so AirPlay device disconnects and is not reachable. Device dissappears from iTunes "Select Speakers" menu. OK, I accept that. Network stae has changed
I then disconnect VN and terminate AnyConnect client application. Airplay devices reapear in
iTunes "Select Speakers" menu. But clicking on the connect box has no effect. AirPlay device 10.0.1.3 is mising from routing tables. Network state has not returned to Baseline. Only way to recover appears to be system reboot.
I have Snow Leopard and I have the "off" option...
If you google "turn off ipv6 in lion" I can see a few option to turn it off.
To determine that the problem was the IPv6, I've used Wireshark (http://www.wireshark.org/download.htm) and then you clearly see that the communication between the computer and the airportExpress switch to ipv6 after using using the cisco VPN.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
[toc:faq]Introduction:This document describes details on how NAT-T
works.Background:ESP encrypts all critical information, encapsulating
the entire inner TCP/UDP datagram within an ESP header. ESP is an IP
protocol in the same sense that TCP and UDP are I...