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Amer Networks E5 CLI User Manual

Page 272

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TCPSynUrg

The TCP URG flag together with SYN; normally
invalid (strip=strip URG). (Default: DropLog)

TCPSynPsh

The TCP PSH flag together with SYN; normally
invalid but always used by some IP stacks
(strip=strip PSH). (Default: StripSilent)

TCPSynRst

The TCP RST flag together with SYN; normally
invalid (strip=strip RST). (Default: DropLog)

TCPSynFin

The TCP FIN flag together with SYN; normally
invalid (strip=strip FIN). (Default: DropLog)

TCPFinUrg

The TCP URG flag together with FIN; normally
invalid (strip=strip URG). (Default: DropLog)

TCPUrg

The TCP URG flag; many operating systems cannot
handle this correctly. (Default: StripLog)

TCPECN

The Explicit Congestion Notification (ECN) flags.
Previously known as "XMAS"/"YMAS" flags. Also
used in OS fingerprinting. (Default: StripLog)

TCPRF

The TCP Reserved field: should be zero. Used in OS
fingerprinting. Also part of ECN extension. (Default:
StripLog)

TCPNULL

TCP "NULL" packets without SYN, ACK, FIN or RST;
normally invalid, used by scanners. (Default:
DropLog)

TCPSequenceNumbers

Validation of TCP sequence numbers. (Default:
ValidateLogBad)

TCPAllowReopen

Allow clients to re-open TCP connections that are
in the closed state. (Default: No)

Note

This object type does not have an identifier and is identified by the name of the type
only. There can only be one instance of this type.

Chapter 3: Configuration Reference

272

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