HP MSR Router Series

187
Configuring the callback server
You can configure the callback server to use traditional DDR or bundle DDR. The configuration
differences are as follows:
• Traditional DDR—The callback server can place return calls according to either of the following:
{ Dial string configured with the dialer route command (PPP authentication must be configured).
{ Username for PPP authentication.
You must select either method by using the dialer callback-center command.
• Bundle DDR—The callback server can place return calls only according to callback numbers.
Configuring the callback server by using traditional DDR
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter dialup interface view.
interface interface-type interface-number N/A
3. Enable the interface to accept
callback requests.
ppp callback server
By default, an interface
does not accept callback
requests.
4. Specify whether the dial string
for callback is determined
according to the authenticated
username or according to a
configured username.
dialer callback-center [ dial-number |
user ] *
By default, callback is not
performed.
5. Return to system view.
quit N/A
6. Configure a dial string for
callback.
• (Method 1) If the dial string for
callback is determined according to
the authenticated username, configure
a callback user and a dial string as
follows:
a. local-user user-name class
network
b. service-type ppp
c. authorization-attribute
callback-number
callback-number
• (Method 2) If the dial string for
callback is determined according to
the configured username, configure a
dial string as follows:
d. interface interface-type
interface-number
e. dialer route ip next-hop-address
[ mask network-mask-length ]
[ vpn-instance
vpn-instance-name ] dial-number
[ interface interface-type
interface-number ] [ broadcast |
user hostname ] *
Use either method.
If the network address
used by a callback client
is dynamically assigned,
use method 1 rather than
method 2.