This is my network
LOCALIZATION1 - DFL-210
Object -> Adress Book -> InterfaceAddress 
 lan_ip  	192.168.1.1
 lannet 	192.168.1.0/24
 port2 		192.168.1.4		Port2 redirect
 port1	 	192.168.1.3 	  	Port2 redirect
 wan_dns1 	xxx.xxx.xxx.xxx 	  	
 wan_dns2 	xxx.xxx.xxx.xxx  	
 wan_gw 	83.xxx.213.32
 wan_ip 	83.xxx.213.33	  	
 wannet 	83.xxx.213.31/29
Object -> Services -> port1_service_2710
NAME: port1_service_2710
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 2710
Object -> Services -> port1_service_2711
NAME: port1_service_2711
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 2711
Object -> Services -> port2_service_all
NAME: port2_service_all
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 0-65535
Rules -> IP Rules -> my_rules
NAME: port1_SAT_2710
ACTION: SAT
SERVICE: port1_service_2710
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port1
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port1_SAT_2711
ACTION: SAT
SERVICE: port1_service_2711
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port1
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port2_SAT_all
ACTION: SAT
SERVICE: port2_service_all
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port2
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port1_2710_allow
ACTION: ALLOW
SERVICE: port1_service_2710
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
NAME: port1_2711_allow
ACTION: ALLOW
SERVICE: port1_service_2711
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
NAME: port2_allow
ACTION: ALLOW
SERVICE: port2_service_all
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
LOCALIZATION2 - DFL-210
Object -> Adress Book -> InterfaceAddress 
 lan_ip  	192.168.1.1
 lannet 	192.168.1.0/24
 port2 		192.168.1.4		Port2 redirect
 port1	 	192.168.1.3 	  	Port2 redirect
 wan_dns1 	xxx.xxx.xxx.xxx 	  	
 wan_dns2 	xxx.xxx.xxx.xxx  	
 wan_gw 	91.xxx.14.25
 wan_ip 	91.xxx.14.26	  	
 wannet 	91.xxx.14.24/29
Object -> Services -> port1_service_2710
NAME: port1_service_2710
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 2710
Object -> Services -> port1_service_2711
NAME: port1_service_2711
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 2711
Object -> Services -> port2_service_all
NAME: port2_service_all
TYPE: TCP/UDP
SOURCE: 0-65535
DESTINATION: 0-65535
Rules -> IP Rules -> my_rules
NAME: port1_SAT_2710
ACTION: SAT
SERVICE: port1_service_2710
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port1
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port1_SAT_2711
ACTION: SAT
SERVICE: port1_service_2711
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port1
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port2_SAT_all
ACTION: SAT
SERVICE: port2_service_all
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
on SAT Tab:
Translate the DESTINATION IP to New IP Address: port2
i check " All-to-One Mapping: rewrite all destination IPs to a single IP "
NAME: port1_2710_allow
ACTION: ALLOW
SERVICE: port1_service_2710
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
NAME: port1_2711_allow
ACTION: ALLOW
SERVICE: port1_service_2711
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
NAME: port2_allow
ACTION: ALLOW
SERVICE: port2_service_all
INTERFACE SOURCE: any
SOURCE NETWORK:	all-nets
INTERFACE DESTINATION: core
DESTINATION NETWORK: wan_ip
LOCALIZATION2 - DFL-210
Object -> Adress Book -> InterfaceAddress 
 lan_ip  	192.168.1.1
 lannet 	192.168.1.0/24
 wan_dns1 	xxx.xxx.xxx.xxx 	  	
 wan_dns2 	xxx.xxx.xxx.xxx  	
 wan_gw 	91.xxx.14.17
 wan_ip 	91.xxx.14.18	  	
 wannet 	91.xxx.14.16/29
LOCALIZATION2 - DFL-210
Object -> Adress Book -> InterfaceAddress 
 lan_ip  	192.168.1.1
 lannet 	192.168.1.0/24
 wan_dns1 	xxx.xxx.xxx.xxx 	  	
 wan_dns2 	xxx.xxx.xxx.xxx  	
 wan_gw 	91.xxx.14.9
 wan_ip 	91.xxx.14.10	  	
 wannet 	91.xxx.14.8/29
Computer 1 on HEADQUARTER Network1 have installed program for cameras on LOCALIZATION1 and LOCALIZATION2 in 192.168.1.3 (port 2710 and 2711).
When Computer1 on HEADQUARTER Network1 have connect to the DFL-210 on program for cameras watch cameras from LOCALIZATION2 but no video from LOCALIZATION1, when Computer1 have connect directly for modem dsl program for cameras watch video from LOCALIZATION1 and LOCALIZATION2
Sorry for my English, but please about indicators for me on this situation
With greetings 
Smoko