I am an accomplished developer in Microsoft technologies, however networking has always been my weak point. I have always managed to be in jobs where my lack of knowledge in networks has not affected me, so I have never bothered to learn anything.Are there any good books out that would teach me the basics of things like tcp/dhcp/vpn/dial up networks/routers and other netwokring terms.
View 3 RepliesHow to set up more than 40 pc's with out internet connection using linksys switch.
View 3 Replies View RelatedModem - (MODulator/DEModulator) This converts your xDSL analog signals into a digital format for use on your home network. A modem can also be part of a Router/Modem combination device.This device typically sits at the very edge of your network at your ISP's demarcation point (the point from where their responsibility for equipment ends).
Router - A router serves to 'route' information from network to network. I.e. A router will route information between the network 192.168.1.0 and 172.16.1.0. Generally your home routers will come as a modem/router/wifi access point package. It will basically route packets of information that are generated on your LAN (Local Area Network) to the internet, and in turn, route packets from the Internet to your LAN devices.
Wifi access point - Obviously provides a wireless Ethernet signal so that you can connect wireless devices to your home network. Typically, the wireless access points you will see will come as a combination of router/modem/wifi point. You can buy extra wireless access points (not wifi routers) and place them strategically throughout your home to increase signal coverage.
Switch - Uses hardware addresses to 'switch' packets through the LAN. Normally a domestic router will have 3 or 4 switch ports built into it. However, switches do come as standalone devices and can be used to increase the breadth and scalability of your home network by using the extra ports they provide to patch in more devices.
Host - A host is basically your PC, iPad, smart phone, laptop that is situated on your home network.
NAS Drive - (Network Attached Storage) Contains storage space that can be used as network a share by connecting it your home network.
NIC - (networt interface card) this is the component that allows your PC/Laptop to be hard wired into your router or switch. It will have an RJ45 jack so that you may connect Category5 and onwards patch leads into it from your router or switch. This talks with your computer's main motherboard and operating system to give you network connectivity.
MBs vs Mbps - MB = Mega Bytes (this measures file size) and Mbps = Mega bits per second (this measure network throughput).
Wireless card/receiver - as above but wirelessly.
Its just a basic question, I have a FS726T switch, and wanted to know how the clan thing should work.
Group A are ports 1-8
Group B are ports 9-16
Group C are ports 17-24
Internet is on port 26
I want each group seperate so 3 vlans... but does port 26 need to be in all 3 vlans for.them to receive internet? Is it possible to have 1 port in 3 vlans?
Would that keep them from seeing each other and still access the internet?
I am running 32 bit Vista Home Basic SP1.I cannot get online. When I hover the mouse over the network icon in the notification area, it reads, "Connection status unknown. The dependency service or group failed to start". When I try to diagnose the problem, I can't because the Diagnostics Policy Service is not running. When I try to Start the service, access is denied (Error 5). Same scenario for the service DHCP Client. When I click on Start/Connect To - I get the msg Windows Cannot Find Any Networks Meanwhile, I keep getting warnings that my firewall is not enabled. When I try to enable it, I get a message that the Security Center can't turn it on.
Windows Firewall is not listed in services.msc.I ran a full Malwarebytes scan and it found nothing wrong. I did a system restore to several days before the problem, but even though the restore completed successfully, it didn't change my (non)results.The Network and Sharing Center does not display the familiar PC monitor icon with a line to the Network and another line going from the Network to the Internet. Instead it just has the word Unknown with the caption the depencency or groiup failed to start I have heard that this might be due to a permissions issue, but when I use regedit and navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices and right click on Dhcp, select Permissions, I get an error when I try to add anything (either Local Service or Network Service).
The msg is c:Windowssystem32adsldp.dll is either not designed to run on Windows or it contains an error. Try installing the program again..I have run sfc /scannow as well as chkdsk /f. Scannow reported that it found some problems but was unable to fix all of them. Chkdsk found and corrected about 10 errors, but neither of these programs worked with the issue.Additionally I have downloaded and installed Process Monitor on the PC, but the amount of information displayed is overwhelming, and I'm not sure what to check. Every time I try to start DHCP I get about 200 lines of info on the screen.
When I open a command prompt and run ipconfig /all, I get that DHCP is running, although it is not. I get the bogus ip address of 169.254.... I get a default gateway of zeroes.Is it possible that this behavior could simply be the result of a bad NIC card?Can I possibly run an in-place upgrade from Vista Home Basic to Vista Home Premium? If it's a Dell PC and I have the Dell Premium CD will it ask me for the product key? If so, will the key on the Basic PC work?
My internet connect works fine for hours at a time, then suddenly will get 7 or 8 General Failures while pinging (long enough to boot me off the net) then will be back to working fine immediately afterwards.Pinging 127.0.0.1 works fine. I've checked the firewall (Norton) and it has the default settings
View 3 Replies View RelatedWhen ping ipv4 is succeeded.
C:Documents and SettingsLW>ping 10.1.1.1Pinging 10.1.1.1 with 32 bytes of data:Reply from 10.1.1.1: bytes=32 time=2ms TTL=64
Reply from 10.1.1.1: bytes=32 time=1ms TTL=64
Reply from 10.1.1.1: bytes=32 time=1ms TTL=64
Reply from 10.1.1.1: bytes=32 time=1ms TTL=64Ping statistics for 10.1.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
[code].....
how do i get a general wifi password for my ipod
View 1 Replies View RelatedI can access the internet just fine, but when I try to connect using a VPN It times out.When I ping the desktop in question, I get a timeout, and when I ping anything from the desktop I get "general failure".I've tried allowing echo responses through the firewall, and disabling the firewall, to no avail.
View 6 Replies View RelatedI have a situation, where I dont need email and where is no SMTP server in this network, but I need CCO-access for EoX/PSIRT from LMS. Because both settings are in the same menu and LMS4.0.1 does real TCP:25 checking for given SMTP-server before can apply, I cant save my CCO-credentials. What can I do?
View 1 Replies View RelatedHow to find the IP from Yahoo Messenger. Real e-mails show the IP, but not Yahoo Messenger.I'm sure the IP is there somewhere, but how do I find it?
View 4 Replies View RelatedI am have 3 machines int he house connected to the internet but one does not have internet access. It shows connected to the wireless network and from the command prompt there is an ip assigned to the laptop. But i cannot ping the gateway or any ip I get General Failure.
View 1 Replies View RelatedWe are a new call center company and want to configure the network to setup the predictive dialer, work properly.how a network could be setup to configure predictive dialer.
View 2 Replies View RelatedI think there is a problem with the settings on my router or something like that. When I watch videos on streaming sites the load bar tends to go up but only so far before freezing. If you slide the button along once the umbrella spinny thing gets going then the load bar will kick back into life again for a few seconds before freezing! The problem also effects downloads. Anything that takes longer the 5 or 10 seconds will fail. This has stopped me downloading simple things such as iplayer and flash updates. I know its not a problem with my computer as it effects all the machines that pass through the house. Were currently getting Virgin wireless broadband (so I dont think its a speed issue).A tecky friend of mine thinks it might be something to do with the 'packets' of information or the channel that my router is operating on
View 16 Replies View RelatedI have a new Alienware X51 running Win 7. It's connected to a home LAN, both wired and wirelessly. For the prior two days internet connectivity has been fine. Today, the PC will not connect to the internet. The Network and Sharing center in control panel shows that the PC is connected to both the wireless network and the wired network, but with no internet connectivity. All other computers and devices in the house are able to connect to the internet. Tried restarts, virus scans, router power off/on, ipconfig /release and renew, all with no luck. When I try and ping other computers in the LAN or the router I get a "General Failure" message.
View 8 Replies View Relatedi'm getting "general network error" while accessing application from server..
client machine: Windows 7
server machine: Windows 2008 server
Switch : 24 port unmanaged D-Link switch ..
network cable: CAT-5 cable.
how to hide Wireless SSID via Wireless controllers (one I am using is 5505)
Currently anyone can attmept to login to it as i cant find any options to hide it! Screen shot below)
what measures I should take to secure the APS and from access, currently considering port security and static mac addresses on ports; traffic is already got ACLS on its vlan. I have little to no experience on Wireless devices.
Me and my friend is currently setting up a Xen test environment. As you can se from the picture below we are running a Cisco ASA 5505 to reach the network from the outside.But the problem is that we want to reach the virtual pfSense's subnet's through the Cisco AnyConnect VPN. And currently the pfSense's are only configured with a public ip and a virtual interface to the VM's.could solve this problem by buying another PCI NIC, so that we have a physical link from the "pfSense box" to a tagged VLAN on the switch.But we are having problems configuring the switch to general vlan's. Cause Xen can't have it's management interface on a tagged VLAN directly from the XenServer,but the switch can tag the packet when it reaches the switchport. I would like to have "switch port general allowed vlan 2" for admin and 10 for "LAN"And then trunk the port to the Cisco ASA. But again, Xen stops me from doing this.
View 2 Replies View Relatedunder ASA Version 8.0:Are NAT's processed from top to bottom or general to specific?I have a many-to-many NAT that is taking precedence over a one-to one-NAT. In what order are they processed?
View 1 Replies View RelatedFor years I have received occasional complaints about users being dropped from WiF and then reconnecting like a minute or two later. I wondered what tools people on the Forum used to troubleshoot this transient problem. Cisco APs like the 1200 don't seem to inform about why someone left. One thing that has been very useful over time is using Network Sumbler to see what WAPs are in a vicinity and make sure there is not channel overlap. How to troubleshoot transient wireless network drops?
View 1 Replies View RelatedI have Catalyst 4507 R-E with one supersor engine n 3 other modules.My question is related to routing of different networks through this switch.I already have certain routes configured which are going to my ISP thru Juniper firewall.(192.168.0.9)I also have Cisco ASA 5510 which i want to use as a backup in case the first one goes down.
View 3 Replies View RelatedI am having some question around Prime Infrastructure..Does a general document exists regarding the licensing count of monitored devices ? Indeed I am wondering about the specific points. Is it true that :
- A 3750 stack unit count as one (for example a 4 units stack consumes 4 license) ?
- A WLC (except 5500) does not consume a license but only the Lightweight APs.
- An autonomous AP does not consumes a Lifecycle licence ?
I recently installed a very basic version of XP on my old laptop (Gateway MT3707).After hours of searching for the correct drivers, I found them, and installed them. After installing the correct drivers for wireless internet I was able to pull up the list and find my network on it.When double clicking on our wireless network it asks for a network key (also called WEP key or WPA key).Now we have a password for our network, but after an exhausting amount of tries that won't work. I not sure if that is what its looking for. In our apartment we run mac OSX, windows vista, etc., but usually the password for the network is satisfactory. I have never ran into this problem.I hate to be a noob, but I don't know where to go from here.
View 6 Replies View Relatedstep by step ACS 5.1's basic configuration through CLI?
View 2 Replies View RelatedI have 2 sub net directly connected to a ASR 1002. This is the configuration
interface GigabitEthernet0/0/0
ip address 193.145.14.114 255.255.255.252
negotiation auto
[Code] ....
The interface gi0/0/0 is connected directly to 193.147.14.113/30 in another router. And the Gi0/1/1 is connected to my internal infra structure. From my router I can ping 193.145.14.113 . So. I configure my PC with default-gateway 193.147.107.3 (ASR).
From my PC
I can ping 193.147.107.3 (gi 0/1/1)
I can ping 193.145.14.114 (gi 0/0/0)
But I can not ping 193.145.14.113 (the other point connected to gi0/0/0)
Why???? It is a IP inside of a sub net directly connected to the ASR. Why the ASR is not doing routing? ip routing is enable.
I have a Cisco ASA5505 running the latest asdm and ios.
[I]Cisco Adaptive Security Appliance Software Version 8.4(2) Device Manager Version 6.4(5)206[/I]
I am trying to get basic web resolution and access but not having any luck. I just wanted to know if there is anything special that I needed to do with the ASA before I can do this. I've made a quick visio diagram of the network, see below: [URL]
The Vigor has a local sub net of 192.168.0.x/24 however there is also a "For routing use only" option. See below: {URL}. I'm hopeful that by configuring the "For routing use ip address" as one of my allocation of public ip's, that it should work okay. I can actually ping by IP and name from the interface of the ASA but can't do that or browse to websites from clients which have their default gateway set to 192.168.0.252. I was under the assumption web browsing should work out of the box almost as it's treated as an outgoing connection. Here is my config for you to look at: (note, I've tried to set the route outside to the local ip of the dray tek and also the "For routing usage only" IP address).
ASA Version 8.4(2)
hostname gilwoodasa
domain-name gilwood.local
enable password 9PvFytIZ2Vpy8Gon encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
names
[Code]...
So, if you're still reading this - all I am after is a way to get basic web browsing working. Here are the logs which show the attempted web access. [URL]
I am struggling to get this working after spending many hours looking at it I am now completely stuck. We are upgrading from a 857W to this 887 VA-M I have some experience of IOS and the 800 series. Our 857W works perfectly using almost the same config. Our situation is that the router will sit in front of our firewall and act essentially as a simple router passing everything through to our Firewall. Nat is done at the Firewall.
We currently have the following configuration that seems to connect the the ISP fine but I cannot connect to the vlan2 port on the switch the firewall cannot connect to he internet or route anything via the Vlan2 port no pings etc.. I am using Fast Ethernet 0 as the Vlan2 port and the rest are V LAN 1 with a local network address to allow me to connect a laptop.
We have a block of static IP addresses, the base of which is assigned to the V LAN 2 interface and used by Dialer 0 as IP Unnumbered. Config below.
4590 out of 262136 bytes
! Last configuration change at 17:42:06 UTC Thu Jan 3 2013
! NVRAM config last updated at 17:43:00 UTC Thu Jan 3 2013
! NVRAM config last updated at 17:43:00 UTC Thu Jan 3 2013
[ code].....
I have an ASA running 8.2(2).I am trying to get the network on the inside interface to be able to communicate through the outside interface and on to the internet.
View 18 Replies View RelatedI am trying simulate the next lab on GNS3 but the ping don't work between hosts on the same VLAN.
View 2 Replies View RelatedI work for a company that buys used cisco equipment and we are trying to get a basic test center set up. What is the best way to perform basic router testing? We have been trying to come up with something for about 3 weeks and so far all we can do is get in the configuration and play around.
View 1 Replies View RelatedIm after a stress tester for network card, hard drives (1 ide, 2 sata as 1 dynamic disc) processor. I have run memtest 86+ for 24 hours and no problems there
View 1 Replies View RelatedI have just bought my first non-domestic router, a CISCO 887VA-K9 which needs basic configuration to get it working. I have a copy of the configuration guide (334 pages) and CP Express user's guide (94 pages) and have spent an hour reading but either they are missing something or my brain is too small to figure out step 1. How to get started. Perhaps from where to download a CP Express installation kit for Windows.
Is the only way via a terminal emulator connected via a serial port ? Is there a graphical interface I can use ? Are there any basic tutorials for beginners ? This is probably the only non-domestic routrer I shall work on so I don't want to invest in a full training course. I just need enough to plug in the ISP credentials and set up DHCP.
I am trying to set up my Cisco 520 router with a firewall that will: Allow port 80 traffic to the vlan 20,Block all other incomming ports to vlan 20 (unless initalised from inside),Allow all outgoing ports on vlan 20,Block all access from vlan 20 to vlan 10 (unless initalised from vlan 10)
View 35 Replies View Related