? Example of configuration information for LCP on a specific interface:
host1#show ppp interface config lcp ser 0/0:1/1 PPP interface serial 0/0:1/1 is Up LCP protocol configuration max-receive-unit use lower layer authentication chap magic-number enabled keepalive-timer 30 seconds restart-timer 3 seconds max-terminate 2 max-configure 10 max-failure 5 authentication none
? Example of no interface selection specified with all interfaces shown:
host1#show ppp interface
PPP interface serial 0/0:1/1 is Up
PPP interface serial 0/0:1/2 is Down (administrative disable) PPP interface serial 0/0:1/3 is Up PPP interface serial 0/0:1/4 is Up PPP interface serial 0/0:2/1 is Up PPP interface serial 0/0:2/2 is Up
PPP interface serial 0/0:2/3 is Down (keepalive drop count exceeded) PPP interface serial 0/0:2/4 is Up PPP interface serial 0/0:3/1 is Up PPP interface serial 0/0:3/2 is Up PPP interface serial 0/0:3/3 is Up PPP interface serial 0/0:3/4 is Up PPP interface serial 0/0:4/1 is Up
PPP interface serial 0/0:4/2 is Down (session timeout)
PPP interface serial 0/0:4/3 is Down (no local authentication) 15 ppp interfaces found authentication none authentication none authentication none
? Example of only a single interface specified:
host1#show ppp interface ser 0/0:1/2
PPP interface serial 0/0:1/2 is Down (administrative disable)
? Example of a single interface queried for configuration information:
host1#show ppp interface config ser 0/0:1/1
PPP interface serial 0/0:1/1 is Up Interface administrative status is open
Configured network protocols are IPCP, OSINLCP
? Example of a single interface queried for statistics and configuration information:
host1#show ppp interface config statistics ser 0/0:1/2 PPP interface serial 0/0:1/2 is Down (administrative disable)
Interface administrative status is closed Configured network protocol is IPCP Interface statistics in out packets 0 0 octets 0 0 errors 0 0 discards 0 0
? Example of status information for OSINLCP for an interface that has an OSINLCP operational state other than up:
host1#show ppp interface status osi ser 0/0:1/2 PPP interface serial 0/0:1/2 is Down (administrative disable)
OSINLCP protocol status operational-status down
terminate-reason not configured PPP interface serial 0/0:1/1 is Up OSINLCP protocol status operational-status up
OSINLCP negotiated options local peer npdu-alignment none none
? Field descriptions
? PPP interface – interface type, interface specifier, and status (up or down)
? Interface administrative status – indicates whether the interface is administratively enabled (open),
meaning that the no ppp shutdown command is operational or administratively disabled (closed), which means that the ppp shutdown command is operational
? Configured network protocol – indicates the network protocol configured on the interface ? Baseline status – indicates whether a statistics baseline is set ? Interface statistics:
? packets – number of packets received (in) or transmitted (out) on the interface ? octets – number of octets received (in) or transmitted (out) on the interface ? errors – number of errors received (in) or transmitted (out) on the interface
? discards – number of packets discarded on receipt (in) or discarded before they were transmitted
(out)
? LCP protocol configuration:
? max-receive-unit – controls negotiation of local MRU option. ―use lower layer‖ indicates that the
MRU of the layer below PPP defines the MRU to be negotiated. ―disabled‖ indicates that the MRU option is not to be negotiated. A numeric value indicates the MRU value to be negotiated.
? authentication – controls the negotiation of the local authentication option; ―none‖ indicates do
not negotiate; ―chap‖ indicates negotiate chap; ―pap‖ indicates negotiate pap; ―chap/pap‖ indicates negotiate chap and if it is rejected, negotiate pap; ―pap/chap‖ indicates negotiate pap and if it is rejected, negotiate chap.
? magic-number – controls the negotiation of the local magic number option; ―disabled‖ indicates
do not negotiate; ―enabled‖ indicates negotiate.
? keepalive-timer – rate of LCP echo requests
? restart-timer – retry frequency during LCP, IPCP, and OSINLCP negotiations ? max-terminate – maximum number of terminate requests ? max-configure – maximum number of configure requests ? max-failure – maximum number of configure NAKs ? LCP protocol status:
? link-status – overall status of LCP negotiations, including the following states: Initial (idle),
Starting (ready to negotiate), Authenticate (authenticating), and Network (LCP is up)
? LCP negotiated options – shows the following negotiated values for the local and remote (peer)
side of the link:
? max-receive unit – maximum receive unit in octets
? authentication – authentication method (none, pap, or chap) ? magic-number – magic number ? pfc – pfc (none or enabled) ? acfc – acfc (none or enabled)
Note: The command displays a value of “none” for any negotiated option parameters If the
option was not negotiated. ? LCP Endpoint Discriminator options:
? local discriminator class – endpoint discriminator type, format, and address space for the local and
remote (peer) system
? local endpoint discriminator – endpoint discriminator value for the local system within the
specified class
? peer discriminator class – endpoint discriminator type, format, and address space for the remote
system
? peer endpoint discriminator – endpoint discriminator value for the remote system within the
specified class
? LCP protocol statistics – shows the following statistics for the life of the interface (since system
boot or interface creation, whichever is later):
? in-keepalive-requests – number of received keepalive requests (LCP Echo Request) ? out-keepalive-requests – number of transmitted keepalive requests ? in-keepalive-replies – number of received keepalive replies ? out-keepalive-replies – number of transmitted keepalive replies
? keepalive-failures – number of keepalive failures reported on the interface
? IPCP protocol configuration:
? configured – IPCP is configured on this interface (true or false) ? administrative-status – IPCP administrative status (open or closed)
? ip-address – address to be used for negotiation of local IP address option
? dns-precedence – used to resolve conflicts during negotiation of DNS addresses. ―local‖ indicates
that the local side takes precedence and that the no ppp peer dns command is operative. ―peer‖ indicates that the remote side takes precedence and the ppp peer dns command is operative.
? wins-precedence – used to resolve conflicts during negotiation of WINS addresses. ―local‖
indicates that the local side takes precedence and that the no ppp peer wins command is operative. ―peer‖ indicates that the remote side takes precedence and the ppp peer wins command is operative.
? IPCP protocol status:
? operational-status – IPCP operational status (up or down) ? terminate-reason – reason for termination of IPCP service
? IPCP negotiated options – shows the following negotiated addresses for the local and remote
(peer) side of the link:
? ip-address – IP address
? primary-dns-address – primary DNS address ? secondary-dns-address – secondary DNS address ? primary-wins-address – primary WINS address ? secondary-wins-address – secondary WINS address
Note: The command displays a value of none or any negotiated option parameters if the
option was not negotiated. ? OSINLCP protocol configuration:
? configured – OSINLCP is configured on this interface (true or false) ? administrative-status – OSINLCP administrative status (open or closed) ? OSINLCP protocol status:
? operational-status – OSINLCP operational status (up or down) ? terminate-reason – reason for termination of OSINLCP service ? OSINLCP negotiated options:
? npdu-alignment – negotiated npdu alignment for the local and remote (peer) side of the link
Note: The command displays a value of none for any negotiated option parameters if the
option was not negotiated. ? Authentication configuration:
? authenticate-retry – maximum number of authentication retries configured using the ppp
max-bad-auth command
? Authentication status:
? grant – authentication status (true – access granted; false – access not granted) ? session-timeout – session timeout in seconds; session is terminated at expiration
? inactivity-timeout – inactivity timeout in seconds; session is terminated if it is not active for
specified timeout
? accounting-timeout – accounting timeout in seconds; frequency of accounting updates to the
authentication server
? peer-ip-address – IP address to be used in negotiation of peer ip address
? peer-primary-dns-address – IP address to be used in negotiation of peer primary DNS address ? peer-secondary-dns-address – IP address to be used in negotiation of peer secondary DNS address ? peer-primary-wins-address – IP address to be used in negotiation of peer primary WINS address ? peer-secondary-wins-address – IP address to be used in negotiation of peer secondary WINS
address
Note: The command displays the authentication status as “none” for any parameters not
provided by the authentication server.
? Authentication statistics – shows statistics since the session was established: ? up-time – time in seconds ? in-octets – received octets ? out-octets – transmitted octets ? in-packets – received packets ? out-packets – transmitted packets ? PAP protocol configuration:
? request-timeout – maximum time in seconds to wait for an authentication request packet ? CHAP protocol configuration:
? name – name to be used in challenge packets
? challenge-retry – maximum number of challenge packets to be transmitted ? challenge-timeout – frequency in seconds of challenge packet retransmission ? minimum-challenge-length – minimum length of challenge packet
? maximum-challenge-length – maximum length of challenge packet. The size of the challenge used
for each challenge packet is a random number between minimum-challenge-length and maximum-challenge-length.
? minimum-rechallenge-timeout – minimum time in seconds before initiating a rechallenge to peer ? maximum-rechallenge-timeout – maximum time in seconds before initiating a rechallenge to peer.
The actual time before a rechallenge is a random number between minimum-rechallenge-timeout and maximum-rechallenge-timeout.
Example 1 The following example displays information about all configured PPP interfaces:
host1#show ppp interface
PPP interface serial 2/0:4/1 is up PPP interface serial 2/0:5/1 is up PPP interface serial 2/1:4/1 is up PPP interface serial 2/1:5/1 is up Bundle name: group1
MLPPP interface serial 2/0:1/1 is up MLPPP interface serial 2/0:2/1 is up MLPPP interface serial 2/0:3/1 is up Bundle name: group2
MLPPP interface serial 2/1:1/1 is up MLPPP interface serial 2/1:2/1 is up