GE MDS ORBIT MCR Technical Manual page 197


Filter Input - Use for selecting and applying a firewall filter (from available filters) to
incoming traffic on this interface.

Filter Output - Use for selecting and applying a firewall filter (from available filters) to
outgoing traffic on this interface.
For more information on packet filtering, refer to Access Control List (Packet Filtering / Firewall)

Input - Default Selections (others may have been added) :
- IN_TRUSTED
- IN_UNTRUSTED
- OUT_TRUSTED
- OUT_UNTRUSTED

Output - Default Selections (others may have been added) :
- IN_TRUSTED
- IN_UNTRUSTED
- OUT_TRUSTED
- OUT_UNTRUSTED
Figure 3-105. Network Address Translation (NAT) Setup

Source - Source NAT performs translation of source IP address of the traffic going out of the
interface. Source NAT (Masquerading). Use for selecting and applying a source NAT rule-set
(from available source nat rule-sets) to outgoing traffic on this interface. Choices:
- MASQ - MASQuerading - This rule-set translates the source address of the outgoing
traffic to use the interface's IP address. In general, IP masquerading allows the user to use
a private (reserved) IP network addresses on the LAN and still allow these devices to
communicate with devices on the other side of the masqueraded interface that are not
aware of the internal private addresses.

Destination- Destination NAT performs translation of destination IP address (and, optionally,
destination port) of the traffic coming into the interface. Destination NAT (Port Forwarding).
Use for selecting and applying a destination NAT rule-set (from available destination nat rule-
sets) to incoming traffic on this interface
MDS 05-6632A01, Rev. F
Figure 3-104. Filter Setup Screen
MDS Orbit MCR/ECR Technical Manual 197