The SetPMTUBHDetect method is used to enable detection of Black Hole routers. Setting this parameter to TRUE causes TCP to try to detect Black Hole routers while doing Path MTU Discovery. A Black Hole router does not return the Internet Control Message Protocol (ICMP) Destination Unreachable messages when it needs to fragment an IP datagram with the Don't Fragment bit set. TCP depends on receiving these messages to perform Path MTU Discovery. With this feature enabled, TCP will try to send segments without the Don't Fragment bit set if several retransmissions of a segment go unacknowledged. If the segment is acknowledged as a result, the maximum segment size (MSS) will be decreased and the Don't Fragment bit will be set in future packets on the connection. Enabling black hole detection increases the maximum number of retransmissions performed for a given segment. The method returns an integer value that can be interpretted as follows: 0 - Successful completion, no reboot required 1 - Successful completion, reboot required 64 - Method not supported on this platform 65 - Unknown failure 66 - Invalid subnet mask 67 - An error occurred while processing an Instance that was returned 68 - Invalid input parameter 69 - More than 5 gateways specified 70 - Invalid IP address 71 - Invalid gateway IP address 72 - An error occurred while accessing the Registry for the requested information 73 - Invalid domain name 74 - Invalid host name 75 - No primary/secondary WINS server defined 76 - Invalid file 77 - Invalid system path 78 - File copy failed 79 - Invalid security parameter 80 - Unable to configure TCP/IP service 81 - Unable to configure DHCP service 82 - Unable to renew DHCP lease 83 - Unable to release DHCP lease 84 - IP not enabled on adapter 85 - IPX not enabled on adapter 86 - Frame/network number bounds error 87 - Invalid frame type 88 - Invalid network number 89 - Duplicate network number 90 - Parameter out of bounds 91 - Access denied 92 - Out of memory 93 - Already exists 94 - Path, file or object not found 95 - Unable to notify service 96 - Unable to notify DNS service 97 - Interface not configurable 98 - Not all DHCP leases could be released/renewed 100 - DHCP not enabled on adapter Other - For integer values other than those listed above, refer to Win32 error code documentation.
The SetKeepAliveTime method is used to set how often TCP attempts to verify that an idle connection is still available by ...
The SetMTU method is used to set the default Maximum Transmission Unit (MTU) for a network interface. The SetMTU method has ...
The SetMultiStringValue method sets the data value for a named value whose data type is REG_MULTI_SZ. The SetMultiStringValue ...
The SetNumForwardPackets method is used to set the number of IP packet headers allocated for the router packet queue. When ...
The SetPMTUBHDetect method is used to enable detection of Black Hole routers. Setting this parameter to TRUE causes TCP to ...
The SetPMTUDiscovery method is used to enable Maximum Transmission Unit (MTU) discovery. Setting this parameter to TRUE causes ...
The SetPriority method attempts to change the execution priority of the process. In order to set the priority to Realtime, ...
The SetSecurityDescriptor method updates the specified key's security descriptor with the supplied _SecurityDescriptor. The ...
The SetStatus operation cannot be completed, because another SetStatus operation is already in progress. Try again after ...