Name: Cisco ASR 9000 Series
Brand: Cisco
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Step 4 password {0 | 7} password

Example:

RP/0/RSP0/CPU0:router(config-l2tp-class)# password 7 pwd_1

Configures the password used for control-channel authentication.

• [0 | 7]—Specifies the input format of the shared secret. The default value is 0.

• 0—Specifies an encrypted password will follow.

• 7—Specifies an unencrypted password will follow.

• password—Defines the shared password between peer routers.

Step 5 retransmit { initial retries initial-retries | retries retries | timeout { max | min } timeout }

Example:

RP/0/RSP0/CPU0:router(config-l2tp-class)# retransmit retries 10

Configures parameters that affect the retransmission of control packets.

• initial retries—Specifies how many SCCRQs are re-sent before giving up on the session. Range is 1 to 1000. The

default is 2.

• retries—Specifies how many retransmission cycles occur before determining that the peer PE router does not

respond. Range is 1 to 1000. The default is 15.

• timeout { max | min }—Specifies maximum and minimum retransmission intervals (in seconds) for resending

control packets. Range is 1 to 8. The default maximum interval is 8; the default minimum interval is 1.

Step 6 hello-interval interval

Example:

RP/0/RSP0/CPU0:router(config-l2tp-class)# hello-interval 10

Specifies the exchange interval (in seconds) used between L2TP hello packets.

• Valid values for the interval argument range from 0 to 1000. The default value is 60.

Step 7 digest { check disable | hash { MD5 | SHA1 } ] | secret { 0 | 7 } password ]

Example:

RP/0/RSP0/CPU0:router(config-l2tp-class)# digest hash MD5

Enables L2TPv3 control-channel authentication or integrity checking.

• secret—Enables L2TPv3 control-channel authentication.

If the digest command is issued without the secret keyword option, L2TPv3 integrity checking is enabled.

Note

• {0 | 7}—Specifies the input format of the shared secret. The default value is 0.

L2VPN and Ethernet Services Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 6.3.x

171

Implementing Point to Point Layer 2 Services

Configuring L2TP Control-Channel Parameters

Cisco ASR 9000 Series Configuration Guidelines

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