Problem solve
Get help with specific problems with your technologies, process and projects.
Problem solve
Get help with specific problems with your technologies, process and projects.
Is frame relay a level two protocol?
What layer of the OSI model is used when using specific client software which transfers files to a s
What is the broadcast address used for?
-
What determines the speed of a LAN that consists of 10 Mbps and 100 Mbps devices?
What limitations in 802.11b does 802.11i address?
What does no ip mroute-cache and no ip route-cache mean?
Can you please explain the differences between coding and modulation?
What is the difference between a router and an access point/hub?
How do I connect a new 16-port switch to an existing hub?
MAC address tutorial
-
Basics on subnet masks and IP addresses
Guidelines for designing a LAN
Before you start designing a network, you must identify what the company needs are. This guide will help you through the process and make sure you don't overlook any important details.Continue Reading
Which transmission media are the most secure?
G723.1 basics
How much time is needed to configure a fresh router?
What is difference between show flash and show flash all commands?
What is the difference between Digital Microwave technology vs. 802.11b?
Thesis guide involving wireless and networking
Lesson on half/full duplex communications and hubs and switches
What is the maximum length of a cable in a local LAN set up?
Is there a minimum length for a CAT5 patch cable?
Can't map a drive - what port should I open?
Cisco router configuration for VoIP
Do all 802.11b/g access points use Time Division Duplex
Implementing VPN with access points (and sources for free VPN clients)
How do you eliminate the risk of spoofing?
Is panel antenna the same as patch antenna?
What are the pros and cons of enabling reverse DNS?
What is functional parallelism?
What is the maximum bandwidth utilization to avoid congestion?
What is the difference is between low-density vs. high density in relationship to switches?
How can I find out who owns an IP address?
Do I need a crossover cable for an uplink port?
What does ASR% mean?
Use your router as TFTP server
Make an existing router as a TFTP server for your purposeContinue Reading
Do you reset or restart?
What each of these function accomplishes.Continue Reading
What are the uses of sub interfaces on a Cisco router?
Can I just pick and use any DNS server on the Internet?
VLAN alternatives and solutions
OSI Crash Course 101
Preventive maintenance' procedures for WANs
Can a wireless router 802.11g be used with dial-up connection?
Is 2.4 GHz affected by rain more than 5.6 GHz?
The router is the firewall, part 1-- An overview of the IOS firewall feature
Expert Michael Martin examines the available options in the IOS firewall for implementing dynamic access control.Continue Reading
How do I add a second IP address range to the interface0/0?
L2TPv3 tunneling compared to MPLS
What requirements should I put on my list for our enterprise network monitoring requirements?
Network is too slow running our latest ERP application
What are the key features of SMS?
What is fragmentation? How is it handled in IPv4 and IPv6?
What is a "Latent Network"?
What is dual band in WLAN?
Calculating link speed
How can I prevent looping between switches?
Connecting two or more networks
Can't contact or find server using the domain name
Using SSL to secure wireless LAN traffic
Broadcast a message to clients from the server
Electromagnetic radiation and wireless access points
Becoming a Wi-Fi service provider
Diagnosing packet loss
Is SIFS shorter than DIFS?
Set up one-way trust relationships
Why you would want to and how to do it.Continue Reading
Change the speed of network card from 100/10/half/full duplex
Range of IP addresses, DNS servers and points of contacts
Are two antennas better than one?
Best practices for end-to-end testing
What is the difference between wired and wireless access points?
Best IP addressing scheme for inter-networked organizations
What's the difference between logical segmentation and physical segmentation performed by a router?
Moving from a flat network to a subnetted network
What is a CPE device?
How many devices can a point to multipoint wireless bridge connect?
Why is 802.11 called 802.11?
What is the most popular type of topology?
What is static paging?
Differences between IPX and SPX protocol
Maximum segment length
Can I route between two subnets using a layer 3 switch?
Which is more beneficial, a router and a firewall or a router with a built in firewall?
Adding a wireless access point to my current network
Read only telnet access
You can use a local database created on your router for remote or support personnel who need only read access to your router.Continue Reading
Configuring service set identifiers
Every wireless LAN has a SSID - a unique name that allows stations to connect to the desired network. Despite this apparently simple purpose, SSIDs have been widely misunderstood.Continue Reading
VLAN breakdown strategy
Configuring Internet connection sharing (ICS)
Router Expert: TACACS+ tricks with scripts, part 1
This tip provides the scripts for a tool that manages tac_plus user accounting.Continue Reading
Baseband vs. broadband signalling
Frame IP
Packet interval times and probabilities
Hamming code
Connecting different types of PBXs together
Router Expert: Configuring Advanced TACACS+ - Part 2: Implementing Authorization
Implement access-control using the "A" in the middle, Authorization.Continue Reading
Troubleshoot network congestion
Things to look for.Continue Reading
What is the bandwidth occupied by Telnet or a browser?
Does VPN use TCP/IP?
Replace your hub with a switch
Voice over Frame Relay
Using reflexive access lists to allow traffic out but not in
This week, Greg shows you how to create a reflexive access list that allows "everything out, nothing in."Continue Reading
Router Expert: TACACS authentication methods
This article covers authentication methods available using the tac_plus daemon.Continue Reading
WLAN security checklist
WLAN security checklistContinue Reading