D-Link DFL-800 CLI Guide - Page 152
The CC Connection Count option series semi common. Default
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3.43.18. TCPSettings Chapter 3. Configuration Reference 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. 3.43.18. 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 interfaces - 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: ValidateLogBad) TCPOPT_SACK The SACK/SACKPERMIT (Selective ACK) options (common). (Default: ValidateLogBad) TCPOPT_TSOPT The TSOPT (Timestamp) option (common). (Default: ValidateLogBad) TCPOPT_ALTCHKREQ The ALTCHKREQ (Alternate Checksum Request) option. (Default: StripLog) TCPOPT_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) 152
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