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TechRepublic Resources
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- SolutionBase: Administer PacketFence with ease via Web interface
- PacketFence is fairly demanding to install, but once you get into the administration of the system via the Web-based administration tool, things become a whole lot easier. Jack Wallen guides you through installation of the tool. PacketFence is one of the most difficult systems I've installed, while...
- Technical articles 2007-12-21
- DHCP lease map to mac address
- Hi,In current DHCP server, many times a single host is assigned more than one active IP addresses against its MAC address, and this causes the DHCP Scope to get full. By observation we found that, in lease file everytime the UID from the same host changes and thus it is...
- Discussion threads 2007-09-28
- mac address on a cisco 871
- Hi.i just bought a cisco 871W, because i wanted to play with something along with my ccna studies BUT.i got a ISP who has been given me a cable modem, and is giving me a specific ip address via DHCP, my problem is now, how do i see which MAC...
- Discussion threads 2007-09-16
- Public Internet Access while protecting private network
- We have a private network with hard wired jacks throughout the building along with some wireless access with WPA protection. The network is based on 2003 and the 10/100/1000 Switches do not have mac address filtering. The firewall between the internet and the private network is a netscreen...
- Discussion threads 2007-08-06
- Vista IP address conflict
- Hi,I've recently started using Vista Business and I'm getting a bizarre problem on my home network.To summarize - My network is in the range 192.168.1.0. There are 6 computers on the network, all wireless, all with static IP addresses. All run XP Pro except my laptop which runs Vista Business.Every...
- Discussion threads 2007-07-03
- how to assign ip addresses to mac addresses in speedtouch 585 v6
- GreetingsI've got a speedtouch 585 v6 router and use it for sharing a dsl connection with neighbors. Each neighbor has an account to connect 1 computer. But some neighbors subscribe for 1 account yet connect 2 computers at the same time. So I wonder if there is a way to...
- Discussion threads 2007-04-13
- Cisco Switch IP address Filtering
- Hi:At one of our remote sites, I implemented port security. There are 20 users, 2 printers, and a router. At this location, I have a Catalyst 2950.I first enabled port security with the "sticky" option to learn the Macaddresses of the pc connected to the interfaces. I then...
- Discussion threads 2006-10-18
- when i configure the DHCP with specific MAC address...
- Peace 4 all,When i configure DHCP whith specific MAC address every thing works fine with me till i connect my labtob through the switch it didnt assign the IP address ! Note that i checked my local area connection and i obtained the IP address automatically but still not working...
- Discussion threads 2006-10-10
- resolve ip address from a switch port
- We have been using old smarthubs for the last 8 years and now just installed hp procurve switches.Can anyone explain to me how I can resolve ip address from the switch ports. I have a switch in a bldg. and I want to know who is connect to port...
- Q&A 2006-07-19
- Gratuitous Arp broadcast
- I work in the IT department for my home county. We have 16 servers with 10 of them running Windows 2000 server, and the other 6 running Windows Server 2003. The other day I was using ethereal to monitor traffic on the LAN and I noticed that two of my...
- Discussion threads 2006-07-05
- Unknown Hosts
- From time to time we have visitors at our facilities that plug thier computers into our network. Does anyone know of a way to detect the IP address of an unknown host that is connected to the network?Ifyou're using switches I believeyou can detect and/or deny any IP or mac...
- Discussion threads 2006-03-17
- Find IP for cisco switch
- Good morning,i'm in a network where there are multiple cisco switches with multiple vlans managing over 800 systems. after getting the ip address of a system i use the nbtstat command to get the mac-address. what commands can i use to find out which switch that particular system...
- Q&A 2006-01-06
- Can ACL filter MAC address?
- I have a friend who wants to know if he could use ACL to filter users MAC address instead of IP address. His problem is that some of the employees in his office knows the administrator IP address and they use this address to gain access to the internet after...
- Q&A 2005-05-11
- Create a reservation to allocate specific IP addresses through DHCP in Windows 2000 Server
- Learn to create a DHCP reservation and assign specific IP addresses to the MAC addresses of target computers. Want more Win2K tips and tricks? Automatically sign up for our free Windows 2000 Server newsletter, delivered each Tuesday! Dynamic Host Configuration Protocol DHCP provides automatic and...
- Technical articles 2005-03-17
- IP address from mac address
- I am a Network administator using Windows 2003 SBS. I am having a problem with my DHCP service. I have it set to start automatically, however throughout the day it stops and I have to restart it manually. I was told it's because there's another device on...
- Q&A 2005-01-20
- Weird Switch Activity - Duplicate IPs
- I do not have much experience with switches but what I'm experiencing while running Etherpeek off a port on an edge Nortel Bay Networks switch doesn't seem proper. Etherpeek indicates that there are duplicate IP addresses in use and reports mac addresses that I'm pretty confident are configured properly. DHCP...
- Q&A 2004-10-12
- Lock IT Down: Think security when setting up an 802.11b wireless network
- 802.11b wireless network securityMany companies are already deploying wireless technologies, and others are only moments behind. But before your company implements an 802.11b wireless network, you should consider how you'd secure it. In this Daily Feature, I'll show you some obvious and some not-so-obvious ways to keep your wireless network...
- Technical articles 2002-04-22
- Colasoft MAC Scanner Pro 2.2 (Windows)
- Colasoft MAC Scanner is a scan tool for scanning IP address and MAC address. It can automatically detect all subnets according to the IP addresses configured on multiple NICs of a machine and scan the MAC addresses and IP addresses of defined subnets as your need. This version is the...
- Software downloads 2008-05-30
- Colasoft MAC Scanner 1.1 build 209 (Windows)
- Colasoft MAC Scanner is a scan tool using to scan IP address and MAC address. It can automatically detect all subnets according to the IP addresses configured on multiple NICs of a machine and scan the MAC addresses and IP addresses of defined subnets as your need. Users can custom...
- Software downloads 2008-11-26
Additional Resources
- wireless router shows unknown MAC address
- My wireless router has a section under LAN&DHCP Server that shows the Hostname, Leased IP Address, and MAC address of any wireless adapter connected to the router.Here's my problem, the listing shows an Unknown MAC address as having received a leased IP address.I have MAC filtering turned on, WEP enabled...
- Discussion threads 2008-02-17
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