Re: The magical invisible bridge

[Rafael Coninck Teigao <rafael () SafeCore NET>]

Also, if the bridge is not properly set, you could acknowledge its
existence by tricking and watching TTL on packets.
    You can send packets with really short TTL and see if they reach the
destination. If the bridge is decrementing the TTL, your packet would no
reach the destination and, therefore, you'd not receive a response
packet (such as SYN-ACK, SYN-RTRN_RST, etc.)

    Hope this can help,
    []'s,
    Rafael Coninck Teigao
    VP
    SafeCore Network Solutions
    http://SafeCore.NET
    +55 41 224 1785

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