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Do you have nat-traversal enabled on your vpn appliance?
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Do you have nat-traversal enabled on your vpn appliance?

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Did you ever find a resolution for this? &nbsp;We are having the same problem? &nbsp;Are you using the AT&amp;T communications manager or the Sierra Wireless client to connect to the 3g network?<br />

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Did you ever find a resolution for this?  We are having the same problem?  Are you using the AT&T communications manager or the Sierra Wireless client to connect to the 3g network?


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Our company issues AT&amp;T Air Cards to our field guys. &nbsp;They've always been able to use those cards to connect to the internet, then launch the Cisco VPN client to connect back to the office. &nbsp;Then they could browse our network, get files, launch apps, etc .. &nbsp;etc. &nbsp;This has stopped working. &nbsp;They can connect to the VPN and authenticate, but cannot go any further. &nbsp;Now the wierd thing is, if they don't use the Air Card, and they can get access to a wired connection to the internet, or even a regular wireless on a home network, everything works perfect. &nbsp;The problem seems to be with someting that the Air Cards use, like a certain protocol or port or something. &nbsp; But nothing has changed on our network to my knowledge. &nbsp; Any ideas?
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Our company issues AT&T Air Cards to our field guys.  They've always been able to use those cards to connect to the internet, then launch the Cisco VPN client to connect back to the office.  Then they could browse our network, get files, launch apps, etc ..  etc.  This has stopped working.  They can connect to the VPN and authenticate, but cannot go any further.  Now the wierd thing is, if they don't use the Air Card, and they can get access to a wired connection to the internet, or even a regular wireless on a home network, everything works perfect.  The problem seems to be with someting that the Air Cards use, like a certain protocol or port or something.   But nothing has changed on our network to my knowledge.   Any ideas?

Cannot browse LAN when connected using VPN and AT&amp;T Air card

Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations. Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure. The key hardware components of a wireless computer network include adapters, routers and access points, antennas and repeaters.

Wireless Hardware

A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or travelling users access to a central organizational network securely. VPNs encapsulate data transfers using secure cryptographic methods and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted.

Cisco PIX is a dedicated hardware firewall appliance; the Cisco Adaptive Security Appliance (ASA) is a firewall and anti-malware security appliance that provides unified threat management and protection the PIX does not. Other Cisco devices and systems include routers, switches, storage networking, wireless and the software and hardware for PIX Firewall Manager (PFM), PIX Device Manager (PDM) and Adaptive Security Device Manager (ASDM).

Cannot browse LAN when connected using VPN and AT&amp;T Air card

Cannot browse LAN when connected using VPN and AT&T Air card