ADTRAN 600R User Manual
Page 125
Total Access 600 Series System Manual
Section 4 User Interface Guide
61200624L1-1B
© 2004 ADTRAN, Inc.
123
IP N
ETMASK
This is the network mask used for this interface. This field is not visible when
A
DDRESS
M
ODE
is set
to
DHCP C
LIENT
.
F
AR
-E
ND
IP A
DDRESS
This is the address of the NEXT hop router on this interface. This field is only visible when
A
DDRESS
M
ODE
is set to
U
SER
S
PECIFIED
.
MTU
Specifies the maximum size for a packet transmitted on this PVC. Default is
1500
. This field is only
valid when L2 protocol for this sub-interface is
FRE
.
NAT
Use this menu to set up and use Network Address Translation on this interface.
P
ORT
T
RANSLATION
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.
Once enabled, additional menus appear and can be used to further customize the NAT
configuration. The default is
D
ISABLED
.
P
UBLIC
IP A
DDRESS
M
ODE
Sets the public NAPT address used for translating. Choices are
I
NTERFACE
(default) and
S
PECIFIED
. Selecting
I
NTERFACE
configures NAT to use the IP address already specified on the
interface; the NAPT address and the interface address are the same. Using
S
PECIFIED
defines a
particular IP address used as the NAPT address.
P
UBLIC
IP A
DDRESS
This menu only appears when the
P
UBLIC
IP A
DDRESS
M
ODE
is set to
S
PECIFIED
, and allows the
user to enter a specific NAPT address.
T
RANSLATE
B
ODY
OF
U
NMAPPED
P
ARTS
Enabling this function forces NAPT to translate the body of any unmapped solicited traffic
originating from the LAN. Default is
D
ISABLED
.
T
RANSLATION
T
ABLE
Table used for defining addresses and port translations. This is an indexed list of all translations
defined for the router. It specifies the translations for specified public addresses/ports to private
addresses/ports. To insert a new translation entry, highlight the index number of the first
translation and press the
<I>
key. To delete a particular entry, highlight the index number of the
entry and press the
<D>
key. The
T
RANSLATION
T
ABLE
parameter descriptions follow.