H3C Technologies H3C MSR 50 User Manual
Page 400
15
Item Description
PPP
Authentication
Configuration
Authentication
Method
Select the authentication method for PPP users on the local end.
You can select PAP or CHAP. If you do not select an authentication
method, no authentication will be performed.
ISP Domain
Specify the ISP domain for PPP user authentication. You can:
•
Click Add to enter the page for adding an ISP domain, as
shown in
. For information about the configuration
items, see
.
•
Select an ISP domain and click Modify to enter the ISP domain
modification page. For information about the configuration
items, see
.
•
Select an ISP domain and click Delete to delete the ISP domain.
If you specify an ISP domain, the specified domain is used for
authentication, and IP addresses must be assigned from the
address pool configured in the specified domain.
If you do not specify any ISP domain, the system checks whether
the domain information is carried in a username. If yes, the
domain is used for authentication; otherwise, the default domain
(system by default) is used for authentication.
PPP Address
PPP Server IP/Mask
Specify the IP address and mask of the local end.
User Address
Specify the address pool for assigning IP addresses to users on the
peer end, or assign an IP address to a user directly.
If you have specified an ISP domain in PPP authentication
configuration, the address pools in the ISP domain are listed in the
User Address list. You can:
•
Click Add to add an address pool, as shown in
. For
information about the configuration items, see
.
•
Select an address pool and click Modify to enter the address
pool modification page. For information about the
configuration items, see
.
•
Select an address pool and click Delete to delete the address
pool.
Assign Address
Forcibly
Specify whether to force the peer end to use the IP address
assigned by the local end. If you enable this function, the peer end
is not allowed to use its locally configured IP address.
Advanced
Configuration
Hello Interval
Specify the interval between sending hello packets.
To check the connectivity of a tunnel, the LAC and LNS regularly
send Hello packets to each other. Upon receipt of a Hello packet,
the LAC or LNS returns a response packet. If the LAC or LNS
receives no Hello response packet from the peer within a specific
period of time, it retransmits the Hello packet. If it receives no
response packet from the peer after transmitting the Hello packet
for three times, it considers that the L2TP tunnel is down and tries to
re-establish a tunnel with the peer.
The interval on the LAC end and that on the LNS end can be
different.