3Com Switch 4800G 24-Port - Page 350

350 CHAPTER 29: IS-IS CONFIGURATION
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The local host name on the local IS overwrites the remote host name on the
remote IS.
Configuring IS-IS
Authentication
For area authentication, the area authentication password is encapsulated into the
Level-1 LSP, CSNP, and PSNP packets. On area authentication enabled routers in
the same area, the authentication mode and password must be same.
For routing domain authentication, the domain authentication password is
encapsulated into the Level-2 LSP, CSNP, and PSNP packets. The domain
authentication enabled Level-2 routers in the backbone must adopt the same
authentication mode and share the same password.
The authentication configured on an interface applies to the hello packet in order
to authenticate neighbors. All interfaces within a network must share the same
authentication password at the same level.
Follow these steps to configure the authentication function:
Assign a local host name is-name sys-name Required
No name is assigned by
default.
This command also enables
the mapping between the
local system ID and host
name
Assign a remote host name and
create a mapping between the
host name and a system ID
is-name map sys-id
map-sys-name
Optional
One system ID only maps to
one name.
No name is assigned by
default
Return to system view quit --
Enter interface view interface interface-type
interface-number
--
Assign a DIS name for the local
network
isis dis-name
symbolic-name
Optional
Not assigned by default
This command is only
applicable on the router with
dynamic host name mapping
enabled.
It is invalid on point-to-point
links.
To do… Use the command… Remarks
To do… Use the command… Remarks
Enter system view system-view --
Enter IS-IS view isis [ process-id ] --
Specify the area
authentication mode
area-authentication-mode
{ simple | md5 } password
[ ip | osi ]
Required
No authentication is enabled
for Level-1 routing
information, and no password
is specified by default.