Configuration Prerequisites; Configuring Neighbor Relationship Authentication; Configuring Area Authentication - HP HPE FlexNetwork 7500 series Configuration Manual

Configuration prerequisites

Before the configuration, complete the following tasks:
•
Configure IP addresses for interfaces to ensure IP connectivity between neighboring nodes.
•
Enable IS-IS.

Configuring neighbor relationship authentication

With neighbor relationship authentication configured, an interface adds the key in the specified mode
into hello packets to the peer and checks the key in the received hello packets. If the authentication
succeeds, it forms the neighbor relationship with the peer.
The authentication mode and key at both ends must be identical.
To prevent packet exchange failure in case of an authentication key change, configure the interface
not to check the authentication information in the received packets.
To configure neighbor relationship authentication:
Step
1. Enter system view.
2. Enter interface view.
3. Specify the authentication
mode and key.
4. (Optional.) Configure the
interface not to check the
authentication information in
the received hello packets.

Configuring area authentication

Area authentication prevents the router from installing routing information from untrusted routers into
the Level-1 LSDB. The router encapsulates the authentication key in the specified mode in Level-1
packets (LSP, CSNP, and PSNP). It also checks the key in received Level-1 packets.
Routers in a common area must have the same authentication mode and key.
To prevent packet exchange failure in case of an authentication key change, configure IS-IS not to
check the authentication information in the received packets.
To configure area authentication:
Step
1. Enter system view.
2. Enter IS-IS view.
Command
system-view
interface interface-type
interface-number
isis authentication-mode { { gca key-id
{ hmac-sha-1 | hmac-sha-224 |
hmac-sha-256 | hmac-sha-384 |
hmac-sha-512 } [ nonstandard ] | md5 |
simple } { cipher | plain } string |
keychain keychain-name } [ level-1 |
level-2 ] [ ip | osi ]
isis authentication send-only [ level-1
| level-2 ]
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
162
Remarks
N/A
N/A
By default, no
authentication is
configured.
When the authentication
mode and key are
configured, the interface
checks the authentication
information in the received
packets by default.
Remarks
N/A
N/A