H3C S9500 Series Operation Manual page 265

Operation Manual – Routing Protocol
H3C S9500 Series Routing Switches
4.2.18 Disabling the Interface to Send OSPF Packets
To prevent OSPF routing information from being acquired by the routers on a certain
network, use the silent-interface command to disable the interface to transmit OSPF
packets.
Perform the following configuration in OSPF view.
Table 4-27 Enable/disable OSPF packet transmission
Disable the interface to send OSPF
packets
Enable the interface from sending OSPF
packets
By default, all interfaces are allowed to transmit and receive OSPF packets.
After an OSPF interface is set to be in silent status, the interface can still advertise its
direct route. However, the OSPF hello packets of the interface will be blocked, and no
neighboring relationship can be established on the interface. Thereby, the capability for
OSPF to adapt to the networking can be enhanced, which will hence reduce the
consumption of system resources. On a switch, this command can disable/enable the
specified VLAN interface to send OSPF packets.
4.2.19 Configuring OSPF Authentication
I. Configuring the OSPF Area to Support Packet Authentication
All the routers in one area must use the same authentication mode (no authentication,
simple text authentication or MD5 cipher text authentication). If the mode of supporting
authentication is configured, all routers on the same segment must use the same
authentication key. To configure a simple text authentication key, use the
authentication-mode simple command. Use the authentication-mode md5
command to configure the MD5 cipher text authentication key if the area is configured
to support MD5 cipher text authentication mode.
Perform the following configuration in OSPF area view.
Table 4-28 Configure the OSPF area to support packet authentication
Configure the area to support authentication
type
Cancel the configured authentication mode
Operation
Operation
4-23
Chapter 4 OSPF Configuration
Command
silent-interface {
Vlan-interface Vlan-interface-number }
undo silent-interface
Vlan-interface Vlan-interface-number }
Command
authentication-mode { simple |
md5 }
undo authentication-mode
default |
{ default |