6-15
Configuring the Data Link Layer Protocol for E1, T1, and Serial Interfaces
Configuring the Logical Interface
For example, you might enter:
ProCurve(config-ppp 1)# ppp pap sent-username SiteA password procurve
Note PAP will be used only to authenticate this WAN connection. You do not have
to actually enable the PAP protocol. It is perfectly acceptable for the local
router to authenticate itself to a peer without requiring that peer to authen-
ticate itself in turn.
Setting a CHAP Username and Password. You configure the router to
authenticate itself from the PPP interface configuration mode context for the
connection. For CHAP, you only have to set the password that the router will
hash and send encrypted to the peer. Enter:
Syntax: ppp chap password <password>
The peer or ISP should provide this password. For example:
ProCurve(config-ppp 1)# ppp chap password procurve
The router automatically sends its hostname for its username. Make sure that
this hostname actually matches that by which the peer identifies your router.
(This can be particularly important when authenticating to an ISP.) If neces-
sary, you can override the hostname with a different username by entering:
Syntax: ppp chap hostname <username>
For example, you might enter:
ProCurve(config-ppp 1)# ppp chap hostname ProcurveA
Recording PPP Authentication Information. If you are configuring PPP
authentication, you may want to print Table 6-2 and enter the information for
your router.
Table 6-2. PPP Authentication Worksheet
Option Your Setting
PPP interface number
authentication protocol
Are you requiring the peer to
authenticate itself?
Yes/No
peer username
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