Contents

X.25 Data Display Trace

The X.25 Data Display Trace feature enhances the Cisco IOS debugging capability for X.25. This feature enables an authorized user to display the entire X.25-encoded traffic stream, including user data, for those packets specified by an X.25 debug command.

Finding Feature Information

Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

Displaying the Contents of X.25 Packets

To augment the reporting of X.25 traffic information to include the contents of the X.25 packets, use the commands listed in the following task. Note that an entry of the debug x25, debug x25 interface, debug x25 vc, or debug x25 xot commands will override any prior entry of any of these commands.


Caution

The reported X.25 packet information may contain sensitive data; for example, clear-text account identities and passwords. The network access policies and router configuration should be controlled appropriately to address this risk.


Caution

The X.25 debug commands can generate large amounts of debugging output. If logging of debug output to the router console is enabled (the default condition), this output may fill the console buffer, preventing the router from processing packets until the contents of the console buffer have been printed.

SUMMARY STEPS

    1.    enable

    2.    debug x25 [only | cmns| xot] [events | all] [dump]

    3.    debug x25 interface {serial-interface | cmns-interface [mac mac-address]} [vc number][events | all] [dump]

    4.    debug x25 vc number [events | all] [dump]

    5.    debug x25 xot [remote ip-address [port number]] [local ip-address [port number]] [events | all] [dump]


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example:
    Router> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.
     
    Step 2 debug x25 [only | cmns| xot] [events | all] [dump]


    Example:
    Router# debug x25 events
     

    Displays information about all X.25 traffic or a specific X.25 service class.

    • Use the dump keyword to display the contents, including user data, of X.25 packets.
     
    Step 3 debug x25 interface {serial-interface | cmns-interface [mac mac-address]} [vc number][events | all] [dump]


    Example:
    Router# debug x25 interface serial 0 dump
     

    Displays information about X.25, Annex G or CMNS contexts or virtual circuits that occur on the identified interface.

    • CMNS reports may be restricted to packets occurring on the interface with the specified remote host.
    • Use the dump keyword to display the contents, including user data, of X.25 packets.
     
    Step 4 debug x25 vc number [events | all] [dump]


    Example:
    Router# debug x25 vc 1 events
     

    Displays information about traffic for all virtual circuits that use a given number.

    • Use the dump keyword to display the contents, including user data, of X.25 packets.
     
    Step 5 debug x25 xot [remote ip-address [port number]] [local ip-address [port number]] [events | all] [dump]


    Example:
    Router# debug x25 xot remote 10.0.155.71 port 1998
     

    Displays information about traffic to or from a specific X.25 over TCP (XOT) host.

    • Use the dump keyword to display the contents, including user data, of X.25 packets.
     

    Additional References

    Related Documents

    Related Topic

    Document Title

    X.25 configuration tasks

    Cisco IOS Wide-Area Networking Configuration Guide , Release 12.3

    X.25 commands

    Cisco IOS Wide-Area Networking Command Reference , Release 12.3

    Standards

    Standards

    Title

    ITU-T 1993 Recommendation X.25

    Interface between DTE and DCE for terminals operating in the packet mode and connected to public data networks by dedicated circuit

    Technical Assistance

    Description

    Link

    Technical Assistance Center (TAC) home page, containing 30,000 pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

    http:/​/​www.cisco.com/​public/​support/​tac/​home.shtml

    Feature Information for X.25 Data Display Trace

    The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

    Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

    Table 1 Feature Information for X.25 Data Display Trace

    Feature Name

    Releases

    Feature Information

    X.25 Data Display Trace

    12.3(2)T

    The X.25 Data Display Trace feature enhances the Cisco IOS debugging capability for X.25. This feature enables an authorized user to display the entire X.25-encoded traffic stream, including user data, for those packets specified by an X.25 debug command.

    In Cisco IOS Release 12.3(2)T, this feature was introduced

    The following commands were introduced or modified: debug x25, debug x25 interface, debug x25 vc.

    X.25 Data Display Trace

    X.25 Data Display Trace

    The X.25 Data Display Trace feature enhances the Cisco IOS debugging capability for X.25. This feature enables an authorized user to display the entire X.25-encoded traffic stream, including user data, for those packets specified by an X.25 debug command.

    Finding Feature Information

    Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module.

    Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

    Displaying the Contents of X.25 Packets

    To augment the reporting of X.25 traffic information to include the contents of the X.25 packets, use the commands listed in the following task. Note that an entry of the debug x25, debug x25 interface, debug x25 vc, or debug x25 xot commands will override any prior entry of any of these commands.


    Caution

    The reported X.25 packet information may contain sensitive data; for example, clear-text account identities and passwords. The network access policies and router configuration should be controlled appropriately to address this risk.


    Caution

    The X.25 debug commands can generate large amounts of debugging output. If logging of debug output to the router console is enabled (the default condition), this output may fill the console buffer, preventing the router from processing packets until the contents of the console buffer have been printed.

    SUMMARY STEPS

      1.    enable

      2.    debug x25 [only | cmns| xot] [events | all] [dump]

      3.    debug x25 interface {serial-interface | cmns-interface [mac mac-address]} [vc number][events | all] [dump]

      4.    debug x25 vc number [events | all] [dump]

      5.    debug x25 xot [remote ip-address [port number]] [local ip-address [port number]] [events | all] [dump]


    DETAILED STEPS
       Command or ActionPurpose
      Step 1 enable


      Example:
      Router> enable
       

      Enables privileged EXEC mode.

      • Enter your password if prompted.
       
      Step 2 debug x25 [only | cmns| xot] [events | all] [dump]


      Example:
      Router# debug x25 events
       

      Displays information about all X.25 traffic or a specific X.25 service class.

      • Use the dump keyword to display the contents, including user data, of X.25 packets.
       
      Step 3 debug x25 interface {serial-interface | cmns-interface [mac mac-address]} [vc number][events | all] [dump]


      Example:
      Router# debug x25 interface serial 0 dump
       

      Displays information about X.25, Annex G or CMNS contexts or virtual circuits that occur on the identified interface.

      • CMNS reports may be restricted to packets occurring on the interface with the specified remote host.
      • Use the dump keyword to display the contents, including user data, of X.25 packets.
       
      Step 4 debug x25 vc number [events | all] [dump]


      Example:
      Router# debug x25 vc 1 events
       

      Displays information about traffic for all virtual circuits that use a given number.

      • Use the dump keyword to display the contents, including user data, of X.25 packets.
       
      Step 5 debug x25 xot [remote ip-address [port number]] [local ip-address [port number]] [events | all] [dump]


      Example:
      Router# debug x25 xot remote 10.0.155.71 port 1998
       

      Displays information about traffic to or from a specific X.25 over TCP (XOT) host.

      • Use the dump keyword to display the contents, including user data, of X.25 packets.
       

      Additional References

      Related Documents

      Related Topic

      Document Title

      X.25 configuration tasks

      Cisco IOS Wide-Area Networking Configuration Guide , Release 12.3

      X.25 commands

      Cisco IOS Wide-Area Networking Command Reference , Release 12.3

      Standards

      Standards

      Title

      ITU-T 1993 Recommendation X.25

      Interface between DTE and DCE for terminals operating in the packet mode and connected to public data networks by dedicated circuit

      Technical Assistance

      Description

      Link

      Technical Assistance Center (TAC) home page, containing 30,000 pages of searchable technical content, including links to products, technologies, solutions, technical tips, and tools. Registered Cisco.com users can log in from this page to access even more content.

      http:/​/​www.cisco.com/​public/​support/​tac/​home.shtml

      Feature Information for X.25 Data Display Trace

      The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

      Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/​go/​cfn. An account on Cisco.com is not required.

      Table 1 Feature Information for X.25 Data Display Trace

      Feature Name

      Releases

      Feature Information

      X.25 Data Display Trace

      12.3(2)T

      The X.25 Data Display Trace feature enhances the Cisco IOS debugging capability for X.25. This feature enables an authorized user to display the entire X.25-encoded traffic stream, including user data, for those packets specified by an X.25 debug command.

      In Cisco IOS Release 12.3(2)T, this feature was introduced

      The following commands were introduced or modified: debug x25, debug x25 interface, debug x25 vc.