![](https://pdfstore-manualsonline.prod.a.ki/pdfasset/3/be/3bebaf9c-1005-4ee8-b7c8-c2df46a91b7f/3bebaf9c-1005-4ee8-b7c8-c2df46a91b7f-bg7d.png)
Implementing IS-IS on Cisco IOS XR Software
How to Implement IS-IS on Cisco IOS XR Software
RC-109
Cisco IOS XR Routing Configuration Guide
Step 3
lsp-password {hmac-md5 | text} {clear |
encrypted}
password
[level {1 | 2}] [send-only]
[snp send-only]
Example:
RP/0/RP0/CPU0:router(config-isis)# lsp-password
hmac-md5 encrypted password1 level 1
Configures the LSP authentication password.
• The hmac-md5 keyword specifies that the password is
used in HMAC-MD5 authentication.
• The text keyword specifies that the password uses
cleartext password authentication.
• The clear keyword specifies that the password is
unencrypted when entered.
• The encrypted keyword specifies that the password is
encrypted using a two-way algorithm when entered.
• The level 1 keyword sets a password for authentication
in the area (in Level 1 LSPs and Level SNPs).
• The level 2 keywords set a password for authentication
in the backbone (the Level 2 area).
• The send-only keyword adds authentication to LSP and
sequence number protocol data units (SNPs) when they
are sent. It does not authenticate received LSPs or
SNPs.
• The snp send-only keyword adds authentication to
SNPs when they are sent. It does not authenticate
received SNPs.
Note To disable SNP password checking, the snp
send-only keywords must be specified in the
lsp-password command.
Step 4
interface
type instance
Example:
RP/0/RP0/CPU0:router(config-isis)# interface
POS 0/1/0/3
Enters interface configuration mode.
Command or Action Purpose