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In order to run debugs, complete these steps:
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Note: Cisco Aironet equipment assigns both a default user name and password of Cisco (case sensitive). Note: Most Cisco products follow the default port settings.Īt this point, the Telnet or console connection establishes, and you are prompted for a user name and password.
In order to restore the default port settings, click Restore Defaults. Set the speed for the connection to the console port. The property sheet for the connection appears. When HyperTerminal opens, complete these steps:įor Telnet connections, complete these steps:įrom the Connect Using drop-down menu, choose TCP/IP.Įnter the IP address of the device where you want to run the debugs.įor console connections, complete these steps:įrom the Connect Using drop-down menu, choose the COM port where the console cable is connected. In order to open HyperTerminal, choose Start > Programs > System Tools > Communications > HyperTerminal. Ĭomplete these steps in order to configure HyperTerminal to communicate with your access point (AP) or bridge: For more complete information on the application, refer to Hilgraeve. Most Microsoft Windows operating systems include HyperTerminal, but you can apply the concepts to any terminal emulation application.
Mac vendor lookup f0 f7 55 how to#
This example describes how to capture output with the Hilgraeve HyperTerminal application. The easiest way to capture this data is with a screen-capture function that is built into the Telnet or communications application. If you cannot capture and analyze debug information, the information is useless. Refer to Cisco Technical Tips Conventions for more information on document conventions. If your network is live, make sure that you understand the potential impact of any command.
All of the devices used in this document started with a cleared (default) configuration.
The information in this document was created from the devices in a specific lab environment.
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The information in this document is based on these software and hardware versions:Ĭisco IOS software-based wireless products of any model and version Prerequisites RequirementsĬisco recommends that you have knowledge of these topics:Īuthentication as it relates to wireless networksĬisco IOS ® software command-line interface (CLI) For authoritative technical support on non-Cisco products, contact the technical support for that product. They are intended for your convenience and not as technical support. Note: The portions of this document that refer to non-Cisco products are based on the experience of the author, not on formal training. The information from these debugs is invaluable when you troubleshoot wireless installations. This document describes how to debug and interpret the output from debug authentications.
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Other authentication types include MAC address authentication and administrative authentication. The most common authentication type is Extensible Authentication Protocol (EAP) in different types and forms. I am not sure what the problem is here.Wireless communication uses authentication in many ways. Opt dns 8.8.8.8 8.8.4.4 #public google dns servers It seems that I am only able to offer this client an address if it's ip is 0.0.0.0 but not 169.254.33.8Īnd my nf looks like: # The start and end of the IP lease block Subnet-Mask, Default-Gateway, BR, Domain-Name-Server Using tcpdump in my host controller (where DHCP is served from) I can see the requests 21:50:12.909484 IP (tos 0x0, ttl 255, id 1319, offset 0, flags ,ġ69.254.33.8.bootpc > 255.: īOOTP/DHCP, Request from 20:b0:f7:04:36:f0 (oui Unknown), length 308,Ĭlient-Ethernet-Address 20:b0:f7:04:36:f0 (oui Unknown)ĭHCP-Message Option 53, length 1: Discover My DHCP server is ignoring DHCP request from specific client.
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