Wireshark · Ethereal-dev: Re: [Ethereal-dev] where is the field of Urgent Pointer in TCP

Ethereal-dev: Re: [Ethereal-dev] where is the field of Urgent Pointer in TCP

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From: Guy Harris <guy@xxxxxxxxxxxx>

Date: Tue, 22 Jul 2003 18:06:09 -0700


On Tuesday, July 22, 2003, at 6:00 PM, li wrote:

when decode packet to TreeView, after show TCP checksum, where is thelast two bytes of Urgent Pointer;

Nowhere, unless the URG bit is set in the TCP header. We only put itinto the protocol tree if URG is set. (If URG isn't set, the packetisn't setting the urgent pointer, and the urgent pointer field's valueis ignored.)

References:
- [Ethereal-dev] where is the field of Urgent Pointer in TCP
  - From: li

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