SonicWALL 5.8.1 Manuale Utente
Network > NAT Policies
355
SonicOS 5.8.1 Administrator Guide
Example one - Mapping to a network:
192.168.0.2 to 192.168.0.4
Translated Destination = 10.50.165.0/30 (Network)
Packet Source IP = 192.168.0.2
192.168.0.2 = C0A80002 = 3232235522 = 11000000101010000000000000000010
(IP -> Hex -> Dec -> Binary)
Sticky IP Formula = Packet Src IP = 3232235522 [modulo] TransDest Size = 2
= 3232235522 [modulo] 2
= 0
(2 divides into numerator evenly. There is no remainder, thus 0)
Stickyt IP Formula yields offset of 0.
Destination remapping to 10.50.165.1.
Example two - Mapping to a IP address range:
192.168.0.2 to 192.168.0.4
Translated Destination = 10.50.165.1 -10.50.165.3 (Range)
Packet Src IP = 192.168.0.2
192.168.0.2 = C0A80002 = 3232235522 = 11000000101010000000000000000010
(IP -> Hex -> Dec -> Binary)
Sticky IP Formula = Packet Src IP = 3232235522 [modulo] TransDest Size = 3
= 3232235522 [modulo] 4
= 1077411840.6666667 - 1077411840
= 0.6666667 * 3
= 2
Stickyt IP Formula yields offset of 2.
Destionation remapping to 10.50.165.3.