Name: ADTRAN Total Access 600R
Brand: ADTRAN
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Section 4 User Interface Guide Total Access 600R System Manual

MTU

(This option is not available if the L2 PROTOCOL is set to PPP.) The Maximum Transmission Unit

(MTU) is the largest possible data unit that can be transmitted. The range is

64 to 1500. The default is

1500.

NAT

The unit can perform Network Address Translation (NAT). This feature is most widely used when

connecting to the Internet. The Ethernet network can consist of private network numbers. When this

profile is enabled, all IP addresses on the Ethernet side are translated into the one real IP address.

Multiple stations on the Ethernet side can access the Internet simultaneously.

PORT TRANSLATION

By enabling PORT TRANSLATION, IP packets are modified as they pass through this interface.

During transmission, private addresses are translated into a single public (NAPT) IP address.

Incoming packets are translated from the public to private address based on the protocol port

numbers. Default is

DISABLED. When disabled, the unit will route across the connection normally.

PUBLIC IP ADDRESS MODE

(This option is only available when NAT PORT TRANSLATION is enabled.) The port translation

requires at least a single real IP address for translating. This value can use the IP assigned to the

interface (or assigned via layer 2 protocol like PPP), obtained using DHCP client, or statically

specified on this menu. If the address cannot be learned, it must be specified in order for the

translation to work. Choices are

INTERFACE, SPECIFIED, and DHCP CLIENT. Default is INTERFACE.

UBLIC IP ADDRESS

(This option is only available when NAT PORT TRANSLATION is enabled and the PUBLIC IP

DDRESS MODE is set to SPECIFIED.) This is the specified address used as the NAT address.

Default is

0.0.0.0.

RANSLATE BODY OF UNMAPPED PORTS

If this option is set to DISABLED, the user must add an entry in the translation table for every port

which needs to be translated. If set to

ENABLED, every port will be translated. The default is

DISABLED, which is sufficient for most circuits.

TRANSLATION TABLE

(This option is only available when NAT PORT TRANSLATION is enabled.) Add translation

entries to specify port address translations or to setup 1:1 translations.

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