Telco and ISP Dial Scenarios and Configurations

Large-Scale POPs

User Setup for PPP

The following example shows a user setup for PPP. The user’s IP address comes from the configured default IP address that is set up on the interface (which could be a specific default IP address, a pointer to a local pool of addresses, or a pointer to a Dynamic Host Configuration Protocol (DHCP) server). The special address that signals the default address is 255.255.255.254.

pppme Password = "cisco" CHAP-Password = "cisco" Service-Type = Framed, Framed-Protocol = PPP, Framed-IP-Address = 255.255.255.254

User Setup for PPP and Static IP Address

The following example shows a user setup for PPP and a static IP address that stays with the user across all connections. Make sure your router is set up to support this configuration, especially for large or multiple POPs.

staticallypppme Password = "cisco" CHAP-Password = "cisco" Service-Type = Framed, Framed-Protocol = PPP, Framed-IP-Address = 1.1.1.1

Enabling Router Dial-In

The following example supports a router dialing in, which requires that a static IP address and a remote Ethernet interface be added to the network access server’s routing table. The router’s WAN port is assigned the address 1.1.1.2. The remote Ethernet interface is 2.1.1.0 with a class C mask. Be sure your routing table can support this requirement. You might need to redistribute the static route with a dynamic routing protocol.

routeme Password = "cisco" CHAP-Password = "cisco" Service-Type = Framed, Framed-Protocol = PPP, Framed-IP-Address = 1.1.1.1 Framed-Route = "2.1.1.0/24 1.1.1.2"

User Setup for SLIP

The following example shows a user setup for SLIP. Remote users are assigned to the default address on the interface.

slipme Password = "cisco" Service-Type = Framed, Framed-Protocol = SLIP, Framed-IP-Address = 255.255.255.254

Cisco IOS Dial Services Configuration Guide: Network Services

DNC-329

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Cisco Systems DNC-305 User Setup for PPP and Static IP Address, Enabling Router Dial-In, User Setup for Slip, DNC-329