D-Link DFL-1600 Softwarehandbuch

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.

3.55.22. TCPSettings

Description

Settings related to the TCP protocol.

Properties

TCPOptionSizes

Validity of TCP header option sizes. (Default: ValidateLogBad)

TCPMSSMin

Minimum allowed TCP MSS (Maximum Segment Size). (Default:
100)

TCPMSSOnLow

How to handle too low MSS values. (Default: DropLog)

TCPMSSMax

Maximum allowed TCP MSS (Maximum Segment Size). (Default:
1460)

TCPMSSVPNMax

Limits TCP MSS for VPN connections; minimizes fragmentation.
(Default: 1400)

TCPMSSOnHigh

How to handle too high MSS values. (Default: Adjust)

TCPMSSLogLevel

When to log regarding too high TCP MSS, if not logged by "TCP
MSS on high". (Default: 7000)

TCPMSSAutoClamping

Automatically clamp TCP MSS according to MTU of involved inter-
faces - in addition to "TCP MSS max". (Default: Yes)

TCPZeroUnusedACK

Force unused ACK fields to zero; helps prevent connection spoofing.
(Default: Yes)

TCPZeroUnusedURG

Force unused URG fields to zero; prevents small information leak.
(Default: Yes)

TCPOPT_WSOPT

The WSOPT (Window Scale) option (common). (Default: Validate-
LogBad)

TCPOPT_SACK

The SACK/SACKPERMIT (Selective ACK) options (common).
(Default: ValidateLogBad)

TCPOPT_TSOPT

The TSOPT (Timestamp) option (common). (Default: ValidateLog-
Bad)

TCPOPT_ALTCHKREQ

The ALTCHKREQ (Alternate Checksum Request) option. (Default:
StripLog)

TCP-
OPT_ALTCHKDATA

The ALTCHKDATA (Alternate Checksum Data) option. (Default:
StripLog)

TCPOPT_CC

The CC (Connection Count) option series (semi common). (Default:
StripLogBad)

TCPOPT_OTHER

How to handle TCP options not specified above. (Default: StripLog)

3.55.22. TCPSettings

Chapter 3. Configuration Reference

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