Re: Anyconnect and Airplay/AirTunes

madxdog123 · ‎09-15-2011

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.

What's gone wrong?

Herbert Baerten · ‎09-18-2011

Hi Wesley,

can you please clarify "10.0.1.3 is mising from routing tables" ?

What does your routing table ("netstat -rn") look like before and after the vpn connection?

Can you ping 10.0.1.3?

Is it in your arp table ("arp -a")?

Herbert

madxdog123 · ‎09-18-2011

On my LAN, 10.0.1.3 is the address of my Apple Airport Express, an AirPlay receiver device.

After fresh reboot of MacBook Pro, Netstat displays:

Internet:

Destination Gateway Flags Refs Use Netif Expire

default 10.0.1.1 UGSc 8 0 en1

10.0.1/24 link#5 UCS 3 0 en1

10.0.1.1 f8:1e:df:f7:3d:70 UHLWIi 23 80 en1 1188

10.0.1.6 127.0.0.1 UHS 0 2 lo0

10.0.1.255 ff:ff:ff:ff:ff:ff UHLWbI 0 29 en1

10.37.129/24 link#9 UC 2 0 vnic1

10.37.129.2 0:1c:42:0:0:9 UHLWIi 1 2 lo0

10.37.129.255 ff:ff:ff:ff:ff:ff UHLWbI 0 6 vnic1

10.211.55/24 link#8 UC 2 0 vnic0

10.211.55.2 0:1c:42:0:0:8 UHLWIi 1 2 lo0

10.211.55.255 ff:ff:ff:ff:ff:ff UHLWbI 0 6 vnic0

127 127.0.0.1 UCS 0 0 lo0

127.0.0.1 127.0.0.1 UH 3 375 lo0

169.254 link#5 UCS 0 0 en1

Start iTunes, connect to AirPlay device

Internet:

Destination Gateway Flags Refs Use Netif Expire

default 10.0.1.1 UGSc 13 0 en1

10.0.1/24 link#5 UCS 3 0 en1

10.0.1.1 f8:1e:df:f7:3d:70 UHLWIi 29 285 en1 1073

10.0.1.3 0:11:24:5d:da:f5 UHLWIi 1 6 en1 1175

10.0.1.6 127.0.0.1 UHS 0 2 lo0

10.0.1.255 ff:ff:ff:ff:ff:ff UHLWbI 0 32 en1

10.37.129/24 link#9 UC 2 0 vnic1

10.37.129.2 0:1c:42:0:0:9 UHLWIi 1 2 lo0

10.37.129.255 ff:ff:ff:ff:ff:ff UHLWbI 0 6 vnic1

10.211.55/24 link#8 UC 2 0 vnic0

10.211.55.2 0:1c:42:0:0:8 UHLWIi 1 2 lo0

10.211.55.255 ff:ff:ff:ff:ff:ff UHLWbI 0 6 vnic0

127 127.0.0.1 UCS 0 0 lo0

127.0.0.1 127.0.0.1 UH 3 335 lo0

169.254 link#5 UCS 0 0 en1

Start VPN

Internet:

Destination Gateway Flags Refs Use Netif Expire

default utun0 UCS 7 0 utun0

default 10.0.1.1 UGScI 2 0 en1

10.0.1/24 link#5 UCS 2 0 en1

10.0.1.1 f8:1e:df:f7:3d:70 UHLS 5 11 en1

10.0.1.2 link#5 UHLWIi 1 13 en1

10.0.1.6 127.0.0.1 UHS 0 2 lo0

10.0.1.6/32 132.198.40.142 UGSc 0 0 utun0

10.0.1.255 ff:ff:ff:ff:ff:ff UHLWbI 0 18 en1

10.37.129/24 link#5 UCS 0 0 en1

10.211.55/24 link#5 UCS 0 0 en1

17.151.16.22 utun0 UHWIi 1 1 utun0

17.172.237.224 utun0 UHWIi 1 17 utun0

127 127.0.0.1 UCS 0 0 lo0

127.0.0.1 127.0.0.1 UH 6 1325 lo0

127.0.0.1/32 132.198.40.142 UGSc 0 0 utun0

132.198.40/24 utun0 UCS 1 0 utun0

132.198.40.142/32 127.0.0.1 UGSc 0 0 lo0

132.198.40.255 utun0 UHW3Ii 0 18 utun0 3490

132.198.47.4/32 10.0.1.1 UGSc 1 0 en1

132.198.125.146 utun0 UHWIi 1 12 utun0

132.198.201.10 utun0 UHWIi 25 40 utun0

169.254 link#5 UCS 0 0 en1

184.85.12.244 utun0 UHWIi 1 323 utun0

184.85.12.245 utun0 UHW3Ii 0 17 utun0 3530

224.0.0.251 utun0 UHmW3I 0 0 utun0 3556

Quit VPN

Internet:

Destination Gateway Flags Refs Use Netif Expire

default 10.0.1.1 UGSc 2 0 en1

10.0.1/24 link#5 UCS 2 0 en1

10.0.1.1 f8:1e:df:f7:3d:70 UHLWIi 18 74 en1 1183

10.0.1.6 127.0.0.1 UHS 0 2 lo0

10.0.1.255 ff:ff:ff:ff:ff:ff UHLWbI 0 17 en1

10.37.129/24 link#9 UCS 2 0 vnic1

10.37.129.255 ff:ff:ff:ff:ff:ff UHLWbI 0 17 vnic1

10.211.55/24 link#8 UCS 2 0 vnic0

10.211.55.255 ff:ff:ff:ff:ff:ff UHLWbI 0 17 vnic0

127 127.0.0.1 UCS 0 0 lo0

127.0.0.1 127.0.0.1 UH 4 4052 lo0

169.254 link#5 UCS 0 0 en1

arp:

? (10.0.1.1) at f8:1e:df:f7:3d:70 on en1 ifscope [ethernet]

? (10.0.1.2) at 58:55:ca:5:b7:e6 on en1 ifscope [ethernet]

? (10.0.1.9) at 0:16:cb:4:ff:62 on en1 ifscope [ethernet]

? (10.37.129.2) at 0:1c:42:0:0:9 on vnic1 ifscope permanent [ethernet]

? (10.211.55.2) at 0:1c:42:0:0:8 on vnic0 ifscope permanent [ethernet]

ping 10.0.1.3

PING 10.0.1.3 (10.0.1.3): 56 data bytes

64 bytes from 10.0.1.3: icmp_seq=0 ttl=64 time=146.652 ms

64 bytes from 10.0.1.3: icmp_seq=1 ttl=64 time=2.093 ms

64 bytes from 10.0.1.3: icmp_seq=2 ttl=64 time=1.716 ms

iTunes cannot reestablish connection to AirPort. It appears in menu, but clicking on checkbox doesn't check the box

Herbert Baerten · ‎09-20-2011

Hi Wesley,

well, if you can ping it, I suspect that if you do an "arp -a" (or a netstat) after the ping, it will show up in the ARP table, so not sure why iTunes cannot reach it.

Actually I'm not sure how iTunes connects to the Airplay, maybe you can run Wireshark (or any other sniffer) to see what happens exactly on the network

A) in a working situation, i.e. when you enable that checkbox before running anyconnect and

B) in the failing situation.

Herbert

support.LogiD · ‎03-08-2012

Hello Wesley,

I had the same problem and I was able to solve it by disabling IPv6 on my Mac.

System Preference -> Network -> Ethernet or Airport -> Advanced -> Configure IPv6: OFF

I hope this work for you!

Jonathan

madxdog123 · ‎03-13-2012

Using OS X Lion. Choices for IP6 are

automatic
manual
link-local only

OFF not an option. Tried link-local only, no help

support.LogiD · ‎03-13-2012

Hello,

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.

I hope this help

Jonathan

mg.patel.tech · ‎08-16-2022

The Airplay disconnects because of "Allow all traffic over tunnel" or your home network is in your VPN network.

I was able to fix the issue. Follow these steps

1. Find out your iPad IP address (example: 10.0.0.150)

2. If you have access to the Home modem, reserve the iPad IP address

3. If not, assign a Static IP address to your iPad.

3. Add a static route of your iPad to your MacBook (sudo route -n add -net 10.0.0.150/32 10.0.0.1{Home modem Default Gateway})

NOTE: Make sure you do not have any device with same IP address as your iPad to VPN network. You can check routes in you Cisco Anyconnect App.