Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 314

JUNOSe 11.0.x Link Layer Configuration Guide
NOTE: This command is equivalent to the log severity debug pppPacket and log
severity debug pppStateMachine commands.
ppp magic-number disable
ppp magic-number ignore-mismatch
ppp max-negotiations
284
Configuring Static MLPPP
Use the no version to disable packet or state machine logging.
See ppp log.
Use to disable negotiation of the local magic number. If issued in the context of
an individual interface, the command affects only that interface. If issued in the
context of an MLPPP bundle, the command affects all MLPPP link interfaces that
are member links of that bundle.
Issuing this command prevents the router from detecting loopback configurations.
Example
host1(config-if)#ppp magic-number disable
Use the no version to restore negotiation of the local magic number.
See ppp magic-number disable.
Use to cause the router to ignore a mismatch of the LCP peer magic number and
retain the PPP connection when the peer has not negotiated an LCP magic
number.
For more information about using this command, see "Validation of LCP Peer
Magic Number" on page 229 in "Configuring Point-to-Point Protocol" on page 227.
To verify configuration of LCP peer magic number validation on the router, use
the show ppp interface mlppp command. For information, see "show ppp
interface mlppp" on page 301.
Example
host1(config-if)#ppp magic-number ignore-mismatch
Use the no version to restore the default behavior, in which the router terminates
the PPP connection if it detects an LCP peer magic number mismatch.
See ppp magic-number ignore-mismatch.
Use to configure the maximum number of LCP, IPCP, or IPv6CP renegotiation
attempts, in the range 1–65535, that the router accepts before terminating a
PPP session.
Configuring the maximum number of renegotiation attempts helps avoid massive
renegotiation loops that can occur between the router and a noncompliant PPP
client. Such renegotiation loops can cause excessive CPU utilization and can
prevent the PPP client from coming up properly.