3Com Switch 7750 SeriesCommand Reference Guide – Routing Protocol Chapter 4 Integrated IS-IS Configuration Commands4-17ViewInterface viewParametersimple: Specifies to send the password in plain text.md5: Specifies to send the password in ciphertext.password: Specifies a password. For simple authentication mode, the passwordmust be plain text. For md5 authentication mode, the password can be either plaintext or ciphertext, and the result depends on the input. A plain password can be astring no longer than 16 bytes, such as user918. A cipher password must be aciphertext of 24 bytes, such as _(TT8F]Y\5SQ=^Q`MAF4<1!!.level-1: Specifies to set a password for L1.level-2: Specifies to set a password for L2.ip: Specifies the system to check the configuration for the corresponding field of IP inLSP.osi: Specifies the system to check the configuration for the corresponding field of OSIin LSP.Whether a password should use the ip keyword or the osi keyword is not affected bythe actual network environment.DescriptionUse the isis authentication-mode command to authenticate the IS-IS hello packetsof the specified level using the specified authentication mode and password on theIS-IS interface.Use the undo isis authentication-mode command to disable the authentication andremove the password.There is no password or authentication by default.If there is no other parameter but the password, then only level-1 and osi areavailable.Related command: area-authentication-mode, and domain authentication-mode.Example# Set the plain password as tangshi for Level-1 adjacency on Vlan-interface 10.<3Com> system-viewSystem View: return to User View with Ctrl+Z.[3Com] interface Vlan-interface 10[3Com-Vlan-interface10] isis authentication-mode simple tangshi level-1
