List of TCP and UDP port numbers from 0 to 1023 This is a list of Internet socket port numbers used by protocols of Transport Layer of the Internet Protocol Suite for the establishment of host-to-host connectivity. Originally, port numbers were used by the Network Control Program (NCP) which needed two ports for half duplex transmission. Later, Transmission Control Protocol (TCP) an

Cisco Access Point LED Status   Checking the Lightweight Access Point LEDs If your lightweight access point is not working proberly, you can check the Status, Ehternet, and Radio LEDs. To see quickly the LED status and there meanings, use the following table to get a brief overview.

Understanding Cisco Access Point IOS Images Introduction All Cisco Aironet wireless access points and bridges were shipped in general with an IOS Software. The only exception is the OEAP602. Note:Some older Cisco access points did not run IOS, such as the Aironet 340 which ran only VxWorks, and the 1000 series lightweight APs. Access Point IOS is distributed as a tar file. These tar

Repair a corrupted IOS Image on a LWAPP Introduction Here i would like to describe, how to set an access point to factory default. My prefered manner is to formatting the flash of an access point, copy the IOS Image from a tftp server and extract the tar file. You need to execute some special command to extract the tar file. If you copy only the tar file to the flash, it doesn’

Wireshark general Wireshark is a free and open-source packet analyzer. This tool is used for network troubleshooting, analysis, communication and software protocol development and education. The original software were named Ehtereal, in May 2006. Later it was renamed to Wireshark due to trademark issues. Wireshark uses pcap to capture packets. It runs on several platforms like GNU/L

Understanding VLAN Trunk Protocol   1. Introduction Vlan Trunk Protocol (VTP) reduces administrative effort in a switched network. There are 3 different types of vtp operating modes. Server Client Transparent