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I'm using Wireshark on the Windows 2008 Server PC with to interfaces and Firefront TMG installed on it. And when I start capturing packets with wireshark, it shows only inbound traffic. I tried it on both interfaces.

Is this normal?

asked 06 Jun '12, 05:30

SKamil's gravatar image

accept rate: 0%

sounds like a similar problem as in this question

Symantec Endpoint Protection prevented wireshark from seeing INCOMING packets. Maybe Firefront TMG does the same for OUTGOING packets in your environment.

See also:

Try to sniff on a different machine by using a mirror port on the switch or any other method described in the link below.


permanent link

answered 06 Jun '12, 12:34

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
accept rate: 15%

NetDMA and TCP Chimney Offload. Both technologies offload TCP processing to the NIC thereby bypassing the WinPCAP driver. Instructions for disabling:

permanent link

answered 05 Jun '13, 08:25

AbraCadaver's gravatar image

accept rate: 0%

See: Interfering Software

On Windows 7 (64-bit), the SonicWall Global VPN Client (64-bit, version had to be uninstalled today to resolve a problem with only being able to monitor inbound traffic.

permanent link

answered 07 Sep '16, 15:35

kbulgrien's gravatar image

accept rate: 0%

edited 08 Sep '16, 05:55

Uninstalling the Global VPN fixed our issue too. Thanks.

(07 Dec '16, 11:13) Werner G
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question asked: 06 Jun '12, 05:30

question was seen: 27,017 times

last updated: 07 Dec '16, 11:13

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