Paradyne Routers manual Napt Configuration Example

DSL Router Configuration Examples

NAPT Configuration Example

			Customer Premises (CP)		End-user
					Systems
Core				10.1.3.2
Router				10.1.3.3
155.1.3.1			Console
			Port	10.1.3.4
			Connection
WAN	DSL		Ethernet	Hub
	dsl1		eth1
		DSL		10.1.3.n
155.1.3.2			10.1.3.1
		Router
					00-16611-02
NAPT Mapping Public IP Addresses				Private IP Addresses
155.1.3.2	Port 23			10.1.3.4
155.1.3.2	Port 23			10.1.3.2
155.1.3.2	Port 23			10.1.3.3
155.1.3.2	Port n			10.1.3.n

In this NAPT example:

HThe DSL router is configured for NAPT using a single public IP address.

HWhen using NAPT, the DSL interface (dsl1) must be numbered because the Ethernet interface will be configured within the private address space.

HNAPT static mapping is configured for a server (Telnet port 23) on the Ethernet interface but publicly available.

The command line syntax for this example is:

ifn address eth1 10.1.3.1 255.255.255.0 ifn address dsl1 155.1.3.2 255.255.255.0 ip route create upstream eth1 155.1.3.1 nat napt address 155.1.3.2

nat napt map tcp 10.1.3.4 23 nat napt enable

4-4 August 2000 6371-A2-GB20-10