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Last Post
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Feb 12, 2008 6:24 PM
by: Jeffrey Osterman
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Posts:
8
From:
Dallas Texas
Registered:
Aug 18, 2007
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Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 7, 2007 3:09 PM
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I have been hacking on this BTMM stuff for a number of days and made a breakthrough today.
The UPNP implementation on the Actiontec router (FIOS) is either NOT being configured properly by BTMM or something.
When you enable BTMM on your mac, it writes an entry into the port forwarding table for the router and routes port 4500 to the internal ip of the machine you enabled BTMM on.
Ok, so here is one thing I discovered. In order for BTMM to work you need to open up the Ports for IPSEC. In the router, there is a predefined protocol in the list you can choose for IpSec, but in a nutshell you must open it to UDP Port 500. Also you must enable ESP and AH in the same port forward configuration.
One Note: The way I figured most of this out was by viewing/tailing the /var/log/system.log file.
So to get it to work, I would do the following :
1) Enable BTMM on the Mac at your house
In the log you will see
Nov 7 07:40:17 iBook mDNSResponder15: *** Keychain Changed *** KeychainEvent=3 kSecAddEvent
Nov 7 07:40:18 iBook mDNSResponder15: Adding registration domain midijamman.members.mac.com.
Nov 7 07:40:18 iBook mDNSResponder15: Setting up AutoTunnel address FD9F:0CFD:C2EB:48E9:0214:51FF:FE0F:A77A
Nov 7 07:40:22 iBook mDNSResponder15: Failed to obtain NAT port mapping from router 192.168.1.1 external address 71.244.13.122 internal port 4500
2) Go into the router and add a port mapping to the internal address of your Mac
with UDP 4500, UDP 500, ESP, and AH
3) Monitor the system log after the update occurs in the router and within a few minutes you will see :
Nov 7 09:23:18 iBook mDNSResponder15: AutoTunnel server listening for connections on AutoTunnel-02-14-51-FF-FE-0F-A7-7A.midijamman.members.mac.com.http://192.168.1.5:4500:iBook-local.midijamman.members.mac.com.FD7A:0340:4156:0F3C:0214:51FF:FE0F:A77A
Nov 7 09:23:19 iBook mDNSResponderHelper1457: racoon (pid=1463) started
Nov 7 09:23:19 iBook mDNSResponder15: Advertising hostname AutoTunnel-02-14-51-FF-FE-0F-A7-7A.midijamman.members.mac.com. IPv4 71.244.13.122 (NAT gateway's external address)
Nov 7 09:23:21 iBook mDNSResponder15: Registered hostname AutoTunnel-02-14-51-FF-FE-0F-A7-7A.midijamman.members.mac.com. IP 71.244.13.122
4) Go to another Mac (you must have at least 2 macs to do this) 
and stop and start BTMM. At this point you should see the other machine in the Finder under shared.
Note: One this to make it easier is to configure Finder to only show BTMM machines in the shared section and de-select Connected Servers and Bonjour Computers. Then when you can easily see when the BTMM appear in the finder.
IMAC 24 White plastic
Mac OS X (10.4.10)
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Posts:
13
Registered:
Mar 16, 2006
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 8, 2007 9:53 AM
in response to: Midijamman2
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Where exactly do you do this? I'm able to log into the router, but where and how do I configure it to work with BTMM?
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Posts:
8
From:
Dallas Texas
Registered:
Aug 18, 2007
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 9, 2007 11:25 AM
in response to: Midijamman2
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You go into the Actiontec Router
1) From the Main menu, Click on Firewall Settings
2) Choose Port Forwarding
3) Add a rule by clicking add ..
4) add each port you want to open the Home Mac
Hope this helps
IMAC 24 White plastic
Mac OS X (10.4.10)
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Posts:
882
From:
Spokane, WA
Registered:
Sep 2, 2000
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 18, 2007 2:14 PM
in response to: Midijamman2
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Hello.
I have Actiontec GT701-WG with Qwest and I'm trying to get Back to My Mac to work.
Actiontec technician advises UPnP is enabled on this modem/gateway by default.
My firewall on Actiontec is off. NAT is on. My local G5 has setting of "DHCP with manual IP address" but WAN address (Qwest) is DHCP.
Which ports do I map?
Which protocol? TCP? UDP? GRE?
Thanks.
G5 dual 1.8, 3GB RAM, MacBook Pro
Mac OS X (10.5)
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Posts:
6
From:
Toronto
Registered:
Aug 7, 2005
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 26, 2007 4:25 PM
in response to: Midijamman2
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I have a DI-524 D-Link Router and I have done the following:
Under Advanced and Virtual Server in the Router Configuration I have entered the following virtual servers:
Private IP - 192.168.XXX.XXX
Protocol - UDP
Private Port - 4500
Public Port - 4500
Private IP - 192.168.XXX.XXX
Protocol - UDP
Private Port - 500
Public Port - 500
What I don't know how to do is: enable ESP and AH in the same port forward configuration.
As well, do I have to have UPNP enabled - some places I have seen show that this has to be enabled.
Any help would be greatly appreciated!
Thank you
iMac G5
Mac OS X (10.5.1)
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Posts:
29
Registered:
Aug 10, 2004
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 26, 2007 7:51 PM
in response to: Midijamman2
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FWIW, I've tried this myself and can't make it work. I get the following error message when starting Back to my Mac, which suggests a problem with uPNP in the Actiontec router (also an Actiontec router): Failed to obtain NAT port mapping from router 192.168.1.1 external address 0.0.0.0 internal port 4500. The 0.0.0.0 is what troubles me. I've forwarded UDP ports 500 and 4500, making sure to include ESP and AH in the entry.
Any thoughts?
Mac Pro
Mac OS X (10.5.1)
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Posts:
3,382
From:
California
Registered:
Jul 18, 2001
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 26, 2007 8:33 PM
in response to: Jeffrey Osterman
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Should be TCP port 4500, not UDP...
PowerMac G5 dual 2.5GHz, PowerBook G4 1GHz DVI
Mac OS X (10.5.1)
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Posts:
2
From:
NJ
Registered:
Nov 27, 2007
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 4:56 AM
in response to: Topher Kessler
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Got the same error here, even after changing to TCP. Is this correct:
http://www.jhgfd.com/junk/Picture1.png
MacBook Pro 17"
Mac OS X (10.5.1)
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Posts:
81
Registered:
May 31, 2006
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 5:28 AM
in response to: gambitt
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Could someone please explain what "ESP" and "AH" is? Is it "Actiontech" specific, or generic? I don't have an actiontec router, but trying to get B2MM to work on my Speedtouch modem/router.
MacBook Pro 2.16/2GB/120GB
Mac OS X (10.5.1)
JBL! Creature2 + Apple Keyboard + Mighty Mouse
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Posts:
2
From:
NJ
Registered:
Nov 27, 2007
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 3:37 PM
in response to: Jeffrey Osterman
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I got that, too, but just now I went to Advanced -> Reboot Router and now I get the NAT message, but the 0.0.0.0 now has my router's actual IP. See if that helps. I don't have a second Mac to try this out with ^^;
MacBook Pro 17"
Mac OS X (10.5.1)
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Posts:
1,316
Registered:
Oct 15, 2003
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 6:17 PM
in response to: Topher Kessler
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Actually, Back to My Mac uses UDP port 4500.
MacBook Pro
Mac OS X (10.5.1)
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Posts:
1,316
Registered:
Oct 15, 2003
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 6:33 PM
in response to: Jeffrey Osterman
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You can't set up manual port forwarding rules. Back to My Mac requires NAT-PMP or UPnP when behind a NAT.
You should contact Actiontec and ask them why UPnP isn't working.
MacBook Pro
Mac OS X (10.5.1)
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Posts:
882
From:
Spokane, WA
Registered:
Sep 2, 2000
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 27, 2007 6:34 PM
in response to: Kawanaut
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Could someone please explain what "ESP" and "AH" is?
Me, too. I have Actiontec GT701-wg, but my firmware is Qwest, and I don't see any options for ESP or AH.
G5 dual 1.8, 3GB RAM, MacBook Pro
Mac OS X (10.5.1)
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Posts:
29
Registered:
Aug 10, 2004
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 29, 2007 3:08 PM
in response to: Snoop Dogg
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It works in a bunch of other applications, just not BtMM. From the packet sniffing suggestion you made in another thread there's at least some UPnP handshaking going on. I can post a packet trace if it would be helpful and you have the time to look at it.
Mac Pro
Mac OS X (10.5.1)
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Posts:
1,316
Registered:
Oct 15, 2003
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Re: Actiontec Router UPNP and Back to My Mac (Working sort of)
Posted:
Nov 29, 2007 8:38 PM
in response to: Jeffrey Osterman
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Sure, I'll look at a trace if you want to post it.
MacBook Pro
Mac OS X (10.5.1)
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