Operation Manual
SFX SERIES USER’S GUIDE 
Rev 2.2 37 
PID Filtering 
(PIDs and Ports) 
MPE Frame 
De-encapsulation 
TTL Translation 
(PREROUTING) 
Destination NAT 
(PREROUTING) 
IP Packets from sat0 
DVB Packets 
NETWORK 
Incoming IP Packets from 
other network devices 
(eth0, eth1, etc.) 
Filtering 
(FORWARD) 
Firewalling 
(OUTPUT) 
TTL Translation 
(OUTPUT) 
Source NAT 
(OUTPUT) 
Source NAT 
(POSTROUTING) 
Firewalling 
(INPUT) 
Input 
Routing Decisions 
Static Routing, 
Multicast Routing, 
IGMP 
Local Processes 
e.g. XD, Video Streaming, 
etc. 
DVB CARRIER
Output 
Routing Decisions 
Gateways, etc. 
NETWORK 
(GUI Edited Table) 
(GUI Edited Table) 
(GUI Edited Table) 
(GUI Edited Table) 
(Local Process 
Controlled Table) 
(GUI Edited Table) 
(Local Process 
Controlled Table) 
(GUI Edited Tables)
(GUI Edited Tables) 
Figure 2- 12 Data Flow Diagram 










