SANGFOR IAM v2.1 User Manual
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[VPN Listing Port]: Configures the listening port for the VPN service. If is 4009 by default. You
can change the port according to your case.
[Change MSS]: Configures the maximum size of the fragmentation under UDP transmission.
[MTU], [Min Compression Value] and [Change MSS] are configured with the default
values. If you need change the values, please follow the instructions given by the SANGFOR
technicians.
[Directly connect], [Indirectly connect]: Select the connecting methods fulfilled between the IAM
gateway device and the Internet, [Directly connect] or [Indirectly connect]. If the Internet IP
address can be obtained directly or the Internet users can access the VPN port of the IAM gateway
device with DNAT (destination translation) function, select [Directly connect]; if the Internet IP
address cannot be obtained, select [Indirectly connect].
[Performance and Broadcast]: Configured the maximum number of VPN threads (connections)
and whether to allow broadcast packets transmission among the VPN channels.
[Threads]: Configures the maximum number of VPN connections. It is 20 by default. One IAM
gateway device allows maximum 1280 VPN connections. If you need to modify this parameter,
please DO follow the instructions given by the SANGFOR technicians.
[Broadcast Packet]: Configures whether to allow broadcast packets transmission among the VPN