Regkey: [HKLM\SYSTEM\CurrentControlSet\Services\TransarcAFSDaemon\Parameters]
Type: DWORD
Default: 0 (seconds)
Variable: NatPingInterval
The NAT Ping Interval determines how frequently a low-level Rx ping packet is sent to every file server using an anonymous connection. The value 0 seconds disables the functionality. A non-zero value activates the NAT ping behavior. This option can be enabled on clients that access AFS file servers from behind a NAT or port mapping firewall that maintains a short timeout on UDP port mappings. In this case the AFS cache manager may not receive AFS callbacks from the file server. This registry value should be set to a number of seconds shorter than the port mapping timeout period. When there is no other information to go on, a value of 20 seconds can be used.