Vxdiaghostshow, 13-21 | Cisco Systems DL-2159-05 manual

Chapter 13 Diagnostics and Troubleshooting

Using Command-Line Diagnostics

:vxdiag_hostshow

Use the :vxdiag_hostshow command to display remote hosts and their IP addresses and aliases. The remote host information might look like this example:

Clock: 96470 sec
hostname	ttl	inet address	aliases
--------	---	------------	-------
localhost	0	127.0.0.1
10.84.139.161	7273	10.84.139.161
10.84.139.136	7273	10.84.139.136
10.84.139.138	7273	10.84.139.138
10.84.139.167	7273	10.84.139.167
10.84.139.160	7273	10.84.139.160
10.84.139.137	7273	10.84.139.137
AP_North.cisco.com	93073	10.84.139.135
10.84.139.164	7273	10.84.139.164
10.84.139.169	7274	10.84.139.169
10.84.139.141	97062	10.84.139.141

These are descriptions for the information in each column:

•Hostname—Domain name of the host, if available; otherwise, same as the Inet address

•TTL—time-to-live

•Inet address—IP address of the host

•Aliases—List of additional names, other than the hostname, that refer to the Inet address

Follow the steps in the “Entering Diagnostic Commands” section on page 13-16to open the CLI and enter the :vxdiag_hostshow command.

		Cisco Aironet 1200 Series Access Point Software Configuration Guide

	OL-2159-05			13-21
	OL-2159-05			13-21

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Cisco Systems DL-2159-05 manual Vxdiaghostshow, 13-21

Contents

Text Part Number OL-2159-05 Corporate Headquarters Copyright 2001-2003, Cisco Systems, Inc All rights reserved Iii N T E N T S Navigating Using the Map Windows Native Vlan ID WEP Not Set on the Wireless Phone Vii Settings on the Authenticator Configuration Viii Event Notifications Setup Setting Up Administrator Authorization Snmp Setup Ssid Xii Organization Audience and ScopeXiii Tip Means the following are useful tips ConventionsXiv Obtaining Documentation Related PublicationsCisco.com Ordering Documentation Documentation CD-ROMDocumentation Feedback Xvi Cisco TAC Website Opening a TAC Case Obtaining Technical AssistanceTAC Case Priority Definitions Xvii Xviii Obtaining Additional Publications and Information A P T E R Overview Key Features Management Options Quality of Service SupportRoaming Client Devices Limitations and Restrictions What is QoS?Related Documents These documents are available on Cisco.com Vlan Support What is a VLAN? Incorporating Wireless Devices into VLANs Vlan Example Level of Access Root Unit on a Wired LAN Network Configuration Examples Access Points as Root Units on a Wired LAN Repeater Unit that Extends Wireless Range Access Point as Repeater Central Unit in an All-Wireless Network Using the Management Interfaces Using the Web-Browser Interface for the First Time Using the Web-Browser InterfaceUsing the Management Pages in the Web-Browser Interface Button/Link Description Map Window with Network Ports Pages Expanded Navigating Using the Map Windows Preparing to Use a Terminal Emulator Using the Command-Line Interface Connecting the Serial Cable Changing Settings with the CLISetting Up the Terminal Emulator Function Description Selecting Pages and Settings Using a Telnet Session Using SnmpApplying Changes to the Configuration Supported MIBs Radio Configuration and Basic Settings Express Setup Basic Settings Express Setup page contains the following settings Entering Basic SettingsSystem Name MAC Address Default IP Address Configuration Server ProtocolDefault IP Subnet Mask Default Gateway Root-Unit Access Points Radio Network Optimization Optimize Radio Network For Security Setup Link Snmp Admin. Community Radio ConfigurationRadio Network Compatibility Ensure Compatibility With Entering Identity Information Settings on the AP Radio Identification Default IP Address Primary Port SettingsDefault IP Subnet Mask Service Set ID Ssid Entering Radio Hardware Information Leap Password AP Radio Hardware page contains the following settings Settings on the AP Radio HardwareAllow Broadcast Ssid to Associate? Data Rates Enable World Mode Frag. Threshold Transmit PowerRTS Threshold Max. RTS Retries Search for Less-Congested Radio Channel Default Radio ChannelRestrict Searched Channels Receive Antenna and Transmit Antenna Entering Advanced Configuration Information AP Radio Advanced Page for Internal Radio AP Radio Advanced pages contain the following settings Settings on the AP Radio AdvancedRequested Status Packet Forwarding Maximum Multicast Packets/Second Default Multicast Address FiltersRadio Cell Role Ssid For Use By Infrastructure Stations Classify Workgroup Bridges as Network Infrastructure Use Aironet Extensions Vlan Setup Link Quality of Service Setup LinkRequire Use of Radio Firmware Ethernet Encapsulation Transform Preferred Access Points Advanced Primary Ssid Setup LinkTemporal Key Integrity Protocol Broadcast WEP Key rotation interval sec Radio Preamble Radio Modulation Non-Root Mobility Ethernet Configuration Entering Ethernet Hardware Information Settings on the Ethernet Identification Ethernet Hardware page contains the following settings Settings on the Ethernet HardwareSpeed Loss of Backbone Connectivity Action Loss of Backbone Connectivity # of SecsLoss of Backbone Connectivity Ssid Ethernet Advanced page contains the following settings Settings on the Ethernet Advanced Default Unicast and Multicast Address Filters Always Unblock Ethernet When STP is Disabled Default Unicast Address FilterOptimize Ethernet for OL-2159-05 Configuring VLANs Vlan setup page contains the following settings Settings on the Vlan SetupEntering Vlan Information Maximum Number of Enabled Vlan IDs 802.1Q Encapsulation ModeVlan Summary Status Link Vlan 802.1Q Tagging Single Vlan ID which allows Unencrypted packets Vlan Security PolicyOptionally allow Encrypted packets on the unencrypted Vlan Vlan Name Broadcast Domain Segmentation Native Vlan ConfigurationParameter TKIP/MIC Deployment of Infrastructure and Non infrastructure Devices Primary and Secondary SSIDs Vlan ID RADIUS-Based Vlan Access Control Vlan Criteria for Deploying Wireless VLANs Wireless Vlan Deployment Example 5shows the wireless Vlan deployment scenario described above Obtaining and Recording Vlan ID and Setup Information Using the Configuration ScreensCreating and Configuring VLANs on the Access Point Creating the Native Vlan Vlan Setup Vlan ID #1 Setup Creating the Full- and Part-Time VLANs Creating the Guest Vlan Creating the Maintenance Vlan Creating and Configuring the SSIDs AP Radio Internal Service Sets Configuring VLANs Wireless Vlan Deployment Example Enabling Vlan 802.1Q Tagging and Identifying the Native Vlan 11 AP Radio Service Sets Creating an Ssid for Infrastructure Devices Guidelines for Wireless Vlan Deployment OL-2159-05 Configuring Filters and QoS Protocol Filtering Filter Setup Enter a descriptive filter set name in the Set Name field Creating a Protocol Filter Filter Set Enabling a Protocol Filter Address Filters MAC Address Filtering Creating a MAC Address Filter AP Radio Advanced AP Radio Primary Ssid QoS Configuration Use Symbol Extensions Settings on the Quality of Service SetupGenerate Qbss Element By Station Applying QoSSend Igmp General Query Traffic Category 10 Protocol Filters Setup 12 Vlan ID By Vlan By Filter 13 Filters Priority Setting By Dscp Value By CoS Value 17 Vlan Setup Wireless QoS Deployment Example 18 Vlan ID #xx WEP Not Set on the Wireless Phone WEP Set on the Wireless Phone 20 AP Radio Internal Service Sets 21 AP Radio Internal Service Sets OL-2159-05 Configuring Proxy Mobile IP Introduction to Mobility in IP Proxy Mobile IP Mobile Approach Nomadic ApproachMobile IP Explained Mobile IP Environment Mobile IP Traffic Pattern Proxy Mobile IP Explained Before Deploying Proxy Mobile IP Components of a Proxy Mobile IP Network Issues to Consider While Deploying Proxy Mobile IP Agent Discovery How Proxy Mobile IP Works Home Agent Subnet Mask Subnet Map Exchange Tunneling Registration Proxy Mobile IP Security Proxy Mobile IP Setup General Proxy Mobile IP Setup Settings on the Proxy Mobile IP General Authentication ServerEnable Proxy Mobile IP Authoritative AP n Settings on the Authenticator Configuration Local SA Bindings Settings on the Local SA Bindings Statistics Settings on the Proxy Mobile IP Statistics Authentication Failures for FA Authentication Failures for HAActive AAP MN IP Addresses Settings on the Subnet Map Table Configuring Proxy Mobile IPView Subnet Map Table Configuring Proxy Mobile IP on Your Wired LAN 11 a Sample Network 13 AP Radio Internal Service Sets 15 Proxy Mobile IP General 17 Subnet Map Table 18 Authenticator Configuration 20 Network Configuration Screen for an Access Point Client 22 Passed Authentication Screen Configuring Other Settings Entering Time Server Settings Server Setup Settings on the Time Server Setup Settings on the Boot Server Setup Entering Boot Server SettingsBoot Server Setup page contains the following settings Use Previous Configuration Server Settings Configuration Server ProtocolBootp Server Timeout sec Dhcp Multiple-Offer Timeout sec Dhcp Minimum Lease Duration min Dhcp Requested Lease Duration minDhcp Client Identifier Type Option Definition Web Server Setup page contains the following settings Settings on the Web Server SetupDhcp Client Identifier Value Dhcp Class Identifier Default Web Root URL Default Help Root URLAllow Non-Console Browsing Http Port Settings on the Name Server Setup Entering Name Server SettingsDefault Domain Domain Name System Settings on the FTP Setup Entering FTP SettingsFTP Setup page contains the following settings Domain Name Servers Routing Setup New Network Route Settings Entering Routing SettingsRouting Setup page contains the following settings Installed Network Routes list Association Table Display SetupAssociation Table Filters Configuring Other Settings Association Table Display Setup Stations to Show Settings on the Association Table FiltersFields to Show Packets To/From Station Association Table AdvancedBytes To/From Station Primary Sort Association Table Advanced Settings on the Association Table Advanced Handle Station Alerts as Severity Level Rogue AP Alert Timeout minutesMaximum number of bytes stored per Station Alert packet Maximum Number of Forwarding Table Entries Event Display Setup Event Notification SetupSettings on the Event Display Setup Default Activity Timeout seconds Per Device Class How should Event Elapsed non-wall-clock Time be displayed? How should time generally be displayed?Severity Level at which to display events Severity Level Description Event Handling Setup 10 The Event Handling Setup Disposition of Events Settings on the Event Handling SetupHandle Station Events as Severity Level Maximum number of bytes stored per Alert packet Clear Alert Statistics Event Notifications SetupPurge Trace Buffer Should Notify-Disposition Events generate Snmp Traps? Settings on the Event Notifications SetupSnmp Trap Destination Snmp Trap Community Syslog Destination Address Should Syslog Messages use the Cisco Emblem Format?Syslog Facility Number Ieee Snmp Traps Should Generate the Following Notifications Security Setup Security Overview Encrypting Radio Signals with WEPLevels of Security Network Authentication Types Additional WEP Security Features Sequence for EAP Authentication Wired LAN Client Sequence for Open Authentication Combining MAC-Based, EAP, and Open Authentication Protecting the Access Point Configuration with User Manager Setting Up WEP Transmit? Key Contents Key Access Point Associated Device Not set Using Snmp to Set Up WEP Enabling Additional WEP Security FeaturesEnabling Message Integrity Check MIC Snmp Variable WEP Full WEP Off AP Radio Advanced Page for Internal Radio Enabling Temporal Key Integrity Protocol Tkip Enabling Broadcast WEP Key Rotation Setting Up Open or Shared Key Authentication Enabling EAP on the Access Point Setting Up EAP Authentication Firmware Version Draft 802.1x-2001 Access Point EAP Settings for Various Client Configurations Enabling EAP in Cisco Secure ACS Click Add New Access Server Setting a Session-Based WEP Key Timeout Setting Up a Repeater Access Point As a Leap Client AP Radio Identification Page for Internal Radio Enabling MAC-Based Authentication on the Access Point Setting Up MAC-Based Authentication 11 Authenticator Configuration Security Setup Setting Up MAC-Based Authentication 12 AP Radio Advanced Authenticating Client Devices Using MAC Addresses or EAP Enabling MAC-Based Authentication in Cisco Secure ACS Authentication Types Required Settings Summary of Settings for Authentication TypesLeap EAP-TLS, EAP-MD5 Attribute ID Description Radius Attributes Sent by the Access Point Acct-Session-Id Acct-Delay-TimeAcct-Authentic VSA attribute Nas-location Vlan-id Auth-algo-type Acct-Terminate-Cause Setting Up Backup Authentication Servers Setting Up Administrator Authorization Creating a List of Authorized Management System Users 14 Security Setup 16 User Management Window Click User Information. The User Information page appears Setting up Centralized Administrator AuthenticationClick Add New User. The User Management window appears Click Apply. You are returned to the User Information 18 Authenticator Configuration System Flow Notes Authorization Parameters Network Management Setting the Display Options Using the Association TableBrowsing to Network Devices Station Using Station Pages Station Identification and Status Information on Station Pages To Station Information Rate, Signal, and Status InformationFrom Station Information Hops and Timing Information Performing Pings and Link TestsPerforming a Ping Click Link Test Performing a Link Test Deauthenticating and Disassociating Client Devices Using the Network Map WindowClearing and Updating Statistics Using Cisco Discovery Protocol MIB for CDP Settings on the CDP Setup Port Assignments Assigning Network Ports Settings on the Port Assignments Enabling Wireless Network Accounting Accounting Setup Settings on the Accounting Setup Attribute Definition Accounting Attributes Radiusipadr OL-2159-05 10-1 Managing Firmware and Configurations Updating Firmware Full Update of the Firmware ComponentsUpdating with the Browser from a Local Drive 10-2 10-3 Selective Update of the Firmware Components 10-4 Updating from a File Server 10-5 Update All Firmware From File Server 10-6 Update Firmware From File Server 10-7 Retrieving Firmware and Web Page Files 10-8 Distributing Firmware 10-9 Distributing a Configuration 10-10 Limiting Distributions 10-11 Downloading the Current Configuration Uploading from a Local Drive Uploading a ConfigurationUploading from a File Server 10-12 10-13 Resetting the Configuration 10-14 Restarting the Access Point 11-1 Management System Setup Settings on the Snmp Setup Snmp Setup11-2 Settings on the Database Query Using the Database Query11-3 Changing Settings with the Database Query Console and Telnet Setup11-4 Using Secure Shell Settings on the Console/Telnet11-5 11-6 12-1 Special Configurations 12-2 Setting Up a Repeater Access Point 12-3 12-4 12-5 Using Hot Standby Mode 12-6 12-7 12-8 13-1 Sections in this chapter include Network Diagnostics Using Diagnostic PagesSelections on the Network Diagnostics 13-2 13-3 Radio Diagnostics Tests SSIDs Int, Mod Vlan Summary Status13-4 13-5 Network Ports Data Received Identifying Information and Status13-6 Ethernet Port Data Transmitted13-7 Receive Statistics Configuration Information13-8 Transmit Statistics AP Radio13-9 AP Radio Port 13-10 13-11 13-12 Display Options Event Log Display Settings13-13 Saving the Log Log HeadingsEvent Log Summary 13-14 Command Information Displayed Using Command-Line Diagnostics13-15 13-16 Entering Diagnostic Commands Eapdiag1on Diagnostic Command Results13-17 Vxdiagarpshow Eapdiag2on13-18 13-19 13-20 Vxdiagcheckstack 13-21 Vxdiaghostshow 13-22 Vxdiagi 13-23 Vxdiagipstatshow 13-24 Vxdiagmemshow 13-25 Vxdiagmuxshow 13-26 Vxdiagrouteshow 13-27 Vxdiagtcpstatshow Tracing Packets Reserving Access Point Memory for a Packet Trace Log FileVxdiagudpstatshow 13-28 13-29 Tracing Packets for Specific Devices Viewing Packet Trace Data Tracing Packets for Ethernet and Radio PortsPackets Stored in a Log File 13-30 Packets Displayed on the CLI Checking the Top Panel Indicators13-31 13-32 Message Ethernet Status Radio Meaning Type Indicator 13-33 Finding an Access Point by Blinking the Top Panel Indicators EAP Authentication Requires Matching 802.1x Protocol Drafts Checking Basic SettingsWEP Keys 13-34 13-35 Firmware Version Draft 13-36 Resetting to the Default Configuration 13-37 13-38 Channels, Power Levels, and Antenna Gains Ieee 802.11a ChannelsRegulatory Domains Ieee 802.11b Maximum Power Levels and Antenna Gains Regulatory Domain Antenna Gain dBi Maximum Power Level mW Maximum Power Level mWRegulatory Domain With 6-dBi Antenna Gain Americas -A 100 Eirp maximum 13.5 Emea -E MW Eirp maximum Regulatory Domain Antenna Gain dBi Maximum Power Level mW OL-2159-05 Protocol Filter Lists ISO Designator Protocol Vines UDP XNS-IDP ISO-TP4 ISO-CNLP CnlpSVP Smtp Http TftpTsap POP2 BGP CmotIRC RIP CVS RadiusRFE Event Log Messages Message Formats Default FormatCisco Emblem Format With a timestamp, messages look like this example Syslog Severity Emblem Severity LoginfoLogemerg Logalert Possible Cause or Message DescriptionsSeverity Event Description Mnemonic Recommended Action Reason Host Device Srchost NewaddrIfDescr Srchost to port ifDescr Desthost length pktLen Reqlen bytes Packet from srchost to desthost IfDescr error= errornumDesthost on port ifDescr For procedure on port ifDescr IfDescr error=erronumSrchost to desthost on port From srchost to desthost on port Srchost on port ifDescr Srchost to desthost of unknown VersionDesthost Rebootinf SysrebootAdmin Prtrarpip Port device Status PktLen IfDescr errno=errno Unenc ENC WEPXidexp Ethercon Media port Frame Frame bytes Username Username FailedPort devName unit Unit Hstndbyen 1XVERAssoclost Hstndbyeth Acctcon InstkeyAmngrreq Nulses Nosbuf NorbufNoaserv Open VlanID IfIndex Awcmib IfIndex MIB Badsize NomibdkeyTaskfailed Taskstarted SsidIdx Statuses and Reasons Appendix C Event Log Messages Statuses and Reasons OL-2159-05 IN-1 Numerics Dhcp CDP MIBCLI Dtim IN-3 Radio traffic Ethernet Locate unit by flashing LEDsIN-4 IN-5 Pspf Vlan SSHIN-6 IN-7 Warm restart IN-8