S8300 and VPN Gateway

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  • nkhald
    Aspiring Member
    • Jun 2013
    • 1

    S8300 and VPN Gateway

    Hello All,

    I have two offices, A and B, connected by means of an always on VPN connection using Juniper SG140 firewalls. my S8300 are configured to use the Juniper devices as a default gateway. the Juniper firewalls are only used to connect the two offices together.



    I have installed and configured a new gateway in network A that is used as the default gateway for all users and also as a VPN gateway for external users.



    My users are using the One-X Communicator as an H.323 client to communicate with the Avaya system.

    The problem is whenever my users are inside the network, the One-X is working fine, whenever they're connected by VPN to the TMG gateway, the One-X fails to connect, SIP is not working too.

    My assumption is that the Avaya system doesn't know how to send back the traffic to the TMG gateway, am I correct? if yes/not, how do I fix this?

    Thanks,
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