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Issue accessing a Web GUI based device

David venner

I'm using the XG free home edition in a virtual lab environment just to simulate basic firewall protection between a LAN\DMZ\External configuration.

I have created a simple rule to begin with that allows all traffic to pass from the LAN to the DMZ, I have a test Citrix Netscaler sat in the DMZ.

I can ping the Netscaler ok but when trying to access the web gui I keep getting page cannot be displayed and within the log viewer I can see the traffic is being denied with message of "Invalid TCP State" and "Invalid Packet" and don't understand why I'm seeing this behavior.

Can anyone help me with this issue I have tried using the GUI packet capture but cannot see anything which can help me?



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  • 0 in reply to LuCar Toni

    Thanks for the reply.

    Tried increasing the timeout which didn't help and then proceeded to take a capture and look at it in wireshark.

    Not that I'm an expert with it but think it's related to invalid packet sequences (This frame is a (suspected) out-of-order segment - from wireshark) but could be wrong and don't understand why it is treating the traffic in this way.

    Would upload the file but this errors when selecting the file.

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