User guide

NAT command reference Network address translation - NAT
4-151
iMG/RG Software Reference Manual (IPNetwork Functions)
Description This command maps an outside IP security interface (enabled as a NAT object using the
NAT ENABLE command) to an individual IP address inside the network. NAT translates
packets between the outside IP address and the individual host based on the transport
information given in this command.
Note: Before you can add reserved mapping, you must enable a NAT object using the command NAT ENABLE
Options The following table gives the range of values for each option that can be specified with
this command and a Default Value (if applicable).
Option Description Default Value
name An arbitrary name that identifies a reserved mapping
configuration. It can be made up of one or more letters
or a combination of letters and digits, but it cannot start
with a digit.
N/A
interfacename The name of an existing security interface (external or
DMZ) created and connected to an inside interface
(DMZ or internal) using the NAT ENABLE command.
To display security interfaces, use the SECURITY LIST
INTERFACES command.
N/A
internalip The IP address of an individual host inside the network
(internal or DMZ interface type).
N/A
icmp
Internet Control Message Protocol (ICMP) is set as
the transport type. ICMP messages are used for out-of-
band messages related to network operation or mis-
operation. See http://www.ietf.org/rfc/rfc0792.txt.
N/A
igmp
Internet Group Management Protocol (IGMP) is
set as the transport type. Allows Internet hosts to par-
ticipate in multicasting. See http://www.ietf.org/rfc/
rfc1112.txt.
N/A
ip
Internetwork Protocol (IP). Provides all of the Inter-
net’s data transport services. http://www.ietf.org/rfc/
rfc791.txt and http://www.ietf.org/rfc/rfc919.txt.
N/A
egp
Exterior Gateway Protocol (EGP). Protocol for
exchanging routing information between autonomous
systems. See http://www.ietf.org/rfc/rfc904.txt.
N/A