Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010, Configuration Manual

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Use the no version to disable initiation of IPv6.
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See ppp initiate-ipv6.
ppp ipcp lockout
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Use to terminate invalid IPv4 subscribers and prevent additional IPCP
negotiations.
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When Internet Protocol version 6 Control Protocol (IPv6CP) is active, this
command enables unused IPv4 addresses, which are allocated for the IPv6
subscribers, to be available for the IPCP services for an internally defined time
interval (10 seconds). When the time interval elapses, the subscriber must connect
again to negotiate IPCP.
For more information about how the IPv4 addresses are restored, see Chapter
7, Configuring Point-to-Point Protocol .
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Example
host1(config-subif)# ppp ipcp lockout
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Use the no version to disable the IPCP lockout option on the interface.
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See ppp ipcp lockout.
ppp ipcp netmask
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Use to specify Internet Protocol Control Protocol (IPCP) option 0x90 for each
PPP interface. By default, IPCP option 0x90 is disabled on the interface.
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Example
host1(config-profile)# ppp ipcp netmask
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Use the no version to disable IPCP option 0x90 option on the interface.
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See ppp ipcp netmask.
ppp ipcp prompt-option dns
Use to prompt the CPE (Customer Premises Equipment) to negotiate the IPCP
primary and secondary DNS options that are locally available with the broadband
remote access server.
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Use the no version to disable the command
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See ppp ipcp prompt-option dns
ppp keepalive
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Use to specify the keepalive timeout value.
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This command always operates in high-density keepalive mode when PPP is
layered over ATM or PPPoE.
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When the keepalive timer expires, the interface searches for frames received
from the peer in the prior keepalive timeout seconds. If the interface finds such
frames, it does not send an LCP echo request (keepalive). Keepalive packets are
sent only if the peer is silent (no traffic was received from the peer during the
Configuring a Dynamic Interface from a Profile
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Chapter 17: Configuring Dynamic Interfaces