Specifications

128 Chapter 5. Configuring Software Options
2. Work_Router
3. Shared_Secret
4. 10.0.0.1
L2TP tunnel configuration commands. These commands would be used to set up the L2TP tunnel
information for our example:
l2tp add Work_Router
l2tp set ourtunnel Home_Router Work_Router
l2tp set chapsecret Shared_Secret Work_Router
l2tp set address 10.0.0.1 Work_Router
PPP remote configuration
PPP remote-specific questions:
1. What is the home routerÕs name for PPP authentication?
2. What is the home routerÕs secret for PPP authentication?
3. Does the home router need PPP authentication for the remote router (company router)?
If yes:
a. What is the remote routerÕs name for PPP authentication?
b. What is the remote routerÕs secret for PPP authentication?
If no:
a. Use the command remote disauthen <remoteName> where <remoteName> is the name used to
refer to the companyÕs router.
4. Does the remote router dynamically assign an IP address for this PPP session?
If yes:
Use IP address translation (NAT)
If no and the home router is to behave as a LAN at home:
Which IP address and network mask does the home router use for its LAN at home? Use the eth ip
addr command to set the LAN at home. Do not enable IP address translation (NAT) for the remote
(company) router.
If no and the home router is to behave as a host at home:
Which IP address does it use at home? Assuming an IP address of www.xxx.yyy.zzz, use the
command:
remote setsrcipaddr www.xxx.yyy.zzz 255.255.255.255 <remoteName>
remote setiptranslate on <remoteName>
5. Which IP and network addresses does the home router access at work through this PPP session?
PPP remote answers. For our example, let us assume the answers to the above PPP remote-specific
questions are as follows: