Multitech MTCBA-H3-EN3-P1 User's Guide download pdf (Page 42)

Chapter 3 – Using the Web Management Software

Multi-Tech Systems, Inc. MultiModem rCell User Guide 42

To (Host/Networks): Enter the network/host to which the packet must send for the filter rule to match. The

Any option, which matches all IP addresses regardless of whether they are officially

assigned addresses or private addresses, may also be entered. The network/host must

be pre-defined in the Networks section.

Action: Enter the action that the packet filter executes if the rule matches any traffic traversing

the firewall. Types of actions defined are:

Accept: Allows/accepts all packets that match this rule.

Reject: Blocks all packets matching this rule. Notifies the host that the packet was

rejected.

Drop: Blocks all packets matching this rule, but dose not notify the host. This is a

silent drop.

Log: Logs packets matching the rule; for example, the corresponding source

address, destination address, and service.

When you click Add, the packet filter rule displays at the bottom of the screen.

Packet Filters > DNAT Configuration

Destination Network Address Translation (DNAT) is a process that allows the placing of servers within the

protected network and making them available for a certain service to the outside world. The DNAT process

running on the router translates the destination address of incoming packets to the address of the real network

server on the LAN. The packets are then forwarded.

You can Delete or Edit a DNAT rule after it has been defined and added by using the table at the bottom of the

screen.

Note: When adding rules, at least one host must be defined in the Network Configuration section.

DNAT Configuration

Allow Access: Select a network or host to which IP packets will be allowed and re-routed. The

network/host must be pre-defined in the Network Configuration section.

External Service: Select the External Service that you want allowed. The service must be defined in the

Service Configuration section.

LAN IP: Select the LAN IP to which the packets are to be diverted. Only one host can be defined

as the destination.

Internal Service: Select the Internal Service to be the destination.

Internal Source: Select the source address for packets that are going to be sent. If you do not want to

change the address, select NOCHANGE.

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Multitech MTCBA-H3-EN3-P1 User's Guide Page 42