Huawei HG612FTTC VDSL NTE manual Configuring the Firewall, Configuring the NAT, Function, Path

		EchoLife HG612 FTTC VDSL NTE
5 Parameter Settings		User Guide
	Table 5-8Dynamic routing parameters
	Parameter	Description
	Operation	It specifies the direction of transmitting RIP information.
	Version	It specifies the RIP version supported by the HG612.

5.7 Configuring the Firewall

Function

The firewall can prevent unauthorized access to the WAN interface of the HG612. The firewall function, however, is valid only when the HG612 works in routing mode.

Path

Choose Advanced > Firewall.

Parameter Description

Table 5-9describes firewall parameters.

Table 5-9Firewall parameters

Parameter	Description
Firewall level	It specifies the level of the firewall.
Operation	It specifies whether to enable the firewall function.

Note

You can select one of the following five types of firewall: MAC filtering, IP filtering, Application filtering, DoS attack, and ACL.

5.8 Configuring the NAT

Function

The NAT is a technology used to translate internal private network addresses into legal network IP addresses. The NAT technology solves the problem of IP address shortage, and guarantees the network security by isolating internal networks from external networks. Internal network addresses are used within a network and translated through the NAT into legal IP addresses for the use on the Internet. During the translation, the address field in each IP packet is replaced by a legal IP address. NAT rules are defined to

5-10	Huawei Proprietary and Confidential	Issue 01 (2009-05-15)
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