I had this small internet cafe with 15 units pc. and browsing the web is not that stable. i have to unplug the internet modem everytime i can't connect to the internet.I think it has something to do with the settings that was in the router since it was just configured by a tech guy which i think not 100% sure of what he did, though it can connect to net for sometime but most of the time it is down.
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.
Modem - (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).
......................Computer 3 Router 1 points to a VPNRouter 2 access to the internetComputer 3 needs to access router 1 (VPN). Both Computer 2 and 3 are in a different room than computer 1, and router 1. Computer 2 is networked via cat5e to router 2.Is is possible to have Computer 2 and 3 share the cat5e, yet access different routers?
Although we have a moderately wired house with cat6 cables runs in many of the rooms that all end in the basement, I am currently having trouble since I cat stream audio and video files from my desktop in the den to the netbook and receiver in the family room. All computers are hooked up by cable.I have tried a friends advice to plug in the exact IP address of the desktop (and vice versa on the netbook) but still the netbook cat find the desktop nor can the desktop find the netbook. I have tried home sharing in Windows 7 to no avail as I have been prompted to initiate a home network both on the netbook and the desktop when I think it is suppose to be initiated on one machine and same home network joined by the other.DSL Modem --> Linksys WRTGL router running Tomato --> switch -->various rooms (cont.)Family room (one of the various rooms) has a Buffalo WZR-HP-G300NH AirStation (with one USB port) --> 1) netbook and 2) Denon AVR receiver (with network capabilities)I have a switch in the den and the desktop and laptop computers can read off each other through folder/drive sharing even with Kaspersky Internet Security running in the background so I'm sure it's not Kaspersky meddling with my network sharing. If both are on the wireless network, the netbook can access the desktop and vice versa.Is it possible for the netbook to read off the desktop based on my current set up? I can't bring the desktop down as we use them in the den and will not have room for it in the family room. I am not inclined to purchase a stand-alone HTPC at the moment if there is a network sharing
I want to setup an home network with a wireless router and use multiple switches for wired connections through out my home. I currently have an Airport extreme hooked up to a cable modem and a leviton gateway hooked up to the Airport. The 2 computers connected to the Leviton are on a windows 7 homegroup and share fine, but won't share or discover any wireless device connected to Airport. My main goal is to have a wireless/wired network with all computers sharing information with each other. I want 2-3 wired switches/gateways with a min of 2 devices connected to each, connected to my wireless router whiich is connected to cable modem.
My daughter is on an Army Base in the South Pacific. They have Dial up internet on their home telephone not DSL. They have high speed wireless at the base community center/coffee shop. I will be going there in 9 days to install the dir-615. She has a Dell Desktop with Vista Basic SP1, laptop with XP, IPAD2 and a NOOK Tablet. The dir-615 HVE1 with firmware 5.00na on the bottom sticker. She said she was able to go to web address, login, change the user name and password, started on the wireless configuration and she paniced. My question is basically this. by using a cat5 cable from the desktop to the dir-615 with dialup internet connected can the router be setup using the automatic method as opposed to manual. Our first priority is to be able transfer files to the 2 tablets without being connected to the internet like a switch and secondly If possible go on to the internet from a Tablet or the Laptop. I assume the second option would reuire internet sharing option when setting up the network and performance would be ugly.
Can get I get this router to work this way with just dialup to set it up
I am trying to configure the FE8 (WAN port) to connect to the Internet. We're swtiching ISP'ssoon so this router was set up at my office and has since been deployed at the client site. So far it is just plugged in and powered, with a console cable attached but no LAN cabling since this router will replace an existing one using the same addressing (except the WAN settings of course). So for now I am just focused on working on the WAN side since I have the ISP's cable modem attached . I had intiially used CP Express to config the wan port with an IP and mask and the various port forwarding options I intend to use. Now, connected via console cable, I tried pinging the IP of the wan port, which works. Beyond that, can't ping anyting (184.108.40.206 - a Google IP), also can't resovle any DNS names which makes sense with no apparent connectivity. Likely my config is just imcomplete. Nowhere in sh run do I see a Default Gateway, yet this ISP did specify one so I assume I need to enter it. Not sure what's the right way - I get confusing results on searches telling me either to use ip default-gateway or ip default-network. I want to think that it's as simple as entering in the IP but so far I've learned with the IOS that you never do anythign without knowing all the possible implications, which I don't. Also while I am at it, I don't know what I should have for DNS entries. This router will not be a DNS server for any internal systems that function will be managed by the two Windows 2008 R2 DNS machines. The ISP has also provided two IP's for their DNS servers. I thought it would be a simple matter of just adding two entrires via ip name-server command, which I did. So now I have four entries, first the two internal servers (inaccessible currently due to no LAN cabing to this router), and the two ISP servers. Can't ping those either, but again there's no default gateway.
I am trying to setup netflow with on 6509 and SolarWinds NetFlow Traffic Analyzer v3.10.0
The problem I have is that after configuring the basic settings of NetFlow on both side I can't see all the traffic I expected to capture in NetFlow.
The details of my problem. I want to monitor the traffic on VLAN 20. In the general configuration of the switch I have entered the following ip flow-export source vlan 10 ip flow-export version 9 ip flow-export destination 220.127.116.11 8080
Where vlan 10 is the management vlan. Vlan10 can ping 18.104.22.168 no problem.
On VLAN20 interface I configured this ip flow egress ip flow ingress ip route-cache flow
When I go to SolarWinds Netflow Traffic Analyzer I can see maybe 1 or 2 packets flows, like nothing of the data. If I do a capture of the traffic on VLAN 20 I can see there is loads of IP traffic on that VLAN but why is netflow not capturing the statistics of those flows and reporting it to NetFlow ?
I' ve three 4900M switches equipped with the WS-X4920-GB-RJ45 module and the WS-X4908-10GE module. Now I'm started to setup these switches in our lab environment for the first time. They behave a little bit strange in comparison with the C3750 series which I used before and which I will replace by these powerful machines.
I tried to setup these switches to be managed through the management port. I configured IP address, default route in the management vrf, set the source-interface for tftp,ssh,ftp and tacacs to use the management port. Ping using the manangement port was successful. After finishing theses steps I configured the TACACS and AAA settings accordingly the informations I found on CCO. I tested the settings with "test aaa group authentication" command- without success. On my Cisco ACS no request was received and the switch told me he could't reach the tacacs server. Other switches in the same IP subnet are working without failure, so firewall or server should not be the problem.
I have been trying to change my password and all the settings on my WRT54G V8 router today because I forgot the password, and I can't seem to navigate the Basic Setup page. I can log in (most of the time) after resetting the router, but whenever I try to click on a different tab (like "Wireless", or "Security") it comes up with the page saying "This Page Cannot Be Displayed." I'd like to be able to put a password on it (which I have successfully done before on this router) because I live in a college dorm and would like to keep my internet from being bogged down by other people using it.
I currently am using the SGE2000 switches for our datacentre and they have run great. We are looking at replacing them as part of our normal equipment refresh and have questions about what is the best switch for us. We are looking at upgrading to at least 48 port switches which isn't a huge issue.The main purposes of the switches will be for iSCSI traffic between Starwind SANs and Vsphere 5.1 hosts. We had some latency issues with one of the SGE2000s but otherwise they've been great.
We also will use these switches to handle our feeds from our ISP and our normal interserver communications. We have had DDoS attacks in the past of 40k packets per second and 600mbps and the SGE2000 never even flinched. We don't need it for any layer3 routing (which we use virtualized PFsense for). Looking at the Miercom report the SG200 series looks like it would be fine for us but I'm just worried around the part which mentions it becoame unresponsive in a DoS attack and also whther it may be slower for iSCSI. Both series seem to support flow control and jumbo frames.
At my company, we lease 3 static public IP addresses from 1 ISP. We want to have 3 separate networks that each use one of the IP addresses. Network 1 is the computer network, network 2 is the VOIP network, and network 3 is the security camera network. I am trying to determine the best way to do this. I have come up with 2 solutions in my head, but I'm not sure if they will work or not. I would like to get some input. Solution 1:Solution 1 looks something like this. Fiber box -> Router-> 3 switches. There would be one WAN input on the router, that would have a static route to 3 different LAN ports. For example, address 22.214.171.124 would be assigned to LAN port 1, 126.96.36.199 would be assigned to LAN port 2, and 188.8.131.52 would be assigned to LAN port 3 (by assigned, I mean have a static route to it). Is there some type of router that is capable of doing this? Solution 2:Solution 2 looks something like this. Fiber box -> Switch -> 3 Routers. The ethernet cable would run from the Fiber Box to a switch, and then 3 routers would be plugged into the switch. Each router would have the Static information configured in them. Would both of these methods work? If so, which would be the best way to go?
We are in the process of switching to a new internet provider in our office and have run into some problems. Our old setup was with AT&T, where they provided a managed router which linked to our internal switch and also provided NAT to the internal IP of our email server.Our new setup right now is just the internet coming in through a cable connected to a switch, we were told we needed to provide our own router. Someone donated a Cisco 2900.What should our proper set-up be? Should the internet come in directly to the router and then to our switch, or should it go to the switch they provided, then the router, and then our switch?Also, there seems to be some confusion about whether or not we need anything else to get the internet to work. There are slots for network cards in the router. Does it come with at least one built in we can use, or do we need to provide one?
I did RECOVERY on my computer. Its a Compac Windows XP Home edition. This computer runs off of my main computer by a router & adapter. My router & adaptor are showing green but the Internet is showing red. Its becuz my high speed Internat service is ATT.my.yahoo.com. which comes through IE. On my newer computer all is fine. My IE works good & all is working. but my IE on my older one which runs with the router wont set up.
I have VOIP and was provided a modem, a Tilgen Router (Vood 452_A). I also currently have a Linksys WRT54G router. I also have a home surveillance system with a DVR that can be accessed via the net. I am trying to allow the ports to open so that traffic can navigate down to the DVR.My IPs:My VOIP has provided me with 6 static IP addresses. For sake of this issue they are:
67.xx.xxx.153, through .158My subnetmask is set to:
The Modem is connected to world. To the modem I have the Tilgen Router connected. The Tilgen is set with an ip of .153 and the subnetmask listed above. DHCP is turned on and has IP range set for .154-.158. It is set in Bridge Mode with NAT and Firewall turned off. To that I have the WRTG54G router connected and assigned the router an Static IP of .154.. The cable is going into the Linksys WAN port.From a computer connected to a LAN port on the WRT54G, I see my public IP as .154, currently my internal IP is 192.168.1.15 so I believe I have to assign one of my Static IPs to this PC, however when I try to connect to the Linksys Router (.154) from the outside web, I am get a time out error. (also from a ping test.) My thoughts are to assign the Linksys to DHCP and use a range of .155-.158 to give each lan item a static IP. My question is will this work? Will each item in the network have its own IP and if I forward the port to the DVR that i needed, ie 80 for web client or 6100 for desktop client, will that forward through?Or do I set it to Router Mode and use the Tilgen to assign the ips.
On the Tilgen I also have an option for a DHCP relay or to turn off DHCP.
For clarification here is the setup chain Broadband/DSL Line>>Tilgen Modem>>(LANPort1)Tilgen Router(LAN Port2)>>(WAN) Linksys(LANPort1)>>DVR/Computers Found this walkthrough on setting the WRT54G into a Switch. If I did this, in theory the VOOD would assign those computers/dvr connected downstream via the WRT54G a static ip from my range set on the router. Then in theory I would not need to port forward port 80 since the DVR would be on its own public IP.?
We recently moved 8 pc's from a room where they each had port on the switch to a room where there is only one port for all of them. I setup a DLINK DIR632 Router in there and they connect thru the one port thru the switch to the gateway which gets them out to the internet.The problems is I need to be able to remote desktop into these 8 PC's and I need them to be able to print to the network printer. I am using a Linksys WRT54G Broadband router as the gateway connecting the switch to the internet. The DLINK's dhcp server is on for the 8 PC's. The Linksys' dhcp server shows the DLINK as IP 192.168.1.19 on the network.I know I have to use advanced routing settings but I'm not sure about how what to make the subnet mask and IP's on both routers. I believe I need to turn off the dhcp server on the DLINK and have the Linksys' dhcp server serve all of the PC's but I'm not sure if thats the best way or if its possible.. I don't want to hack out fix only to find it breaks 3 days later.I used to do this stuff all day long in the 90's but its been a while and to me its like calculus.
I have a dell powerconnect 2848 switch and setting up a vlan 3 an make port 1 mngt, port 48 uplink to layer 3 switch and tag vlan 1 and 3 to port 48 with cli commands for this setup. and also to untag ports 2-10 for computers
I want to setup a static ip address for a h.264 network dvr ,however my desktop computer is out of order, that is connected direct to router,is it possible to use my wireless laptop to setup the router,or will I have to connect the eithernet cable to the laptop.
Currently in my office have a TPlink wireless router (WR1043N), and Dlink 615 router.Below is my office's network organization.Internet-->TPLinkRouter(192.168.2.0)-->DlinkRouter(192.168.0.0)We want to host a demo website but we are afraid our network being attacked. So we wish to implement a DMZ network to hide our internal network from outside. My question is can i setup a dmz network with the above capabilities by using home routers?
I have a Dell switch setup with 2 Vlan's. Vlan 1 is to the network. Vlan 20 is going to be for wireless access to the internet. How do I configure the switch/router so that Vlan 20 only connects to the internet and not the network? I will later want to have a 2nd SSID that I want to connect to both the internet and network.
I am following instructions I found to set up my wirelss network, but am having trouble configuring my router. I'm specifically at a standstill, because I can't connect to http://192.168.1.1. I pinged the router and got a response and went to run/ip config to confirm I have the right URL for the router, but still not able to get to the URL.
We are setting up a new office and I am trying to get RADIUS setup for authentication to my switches and routers. Currently I am working on a 3750 running IOS 15 and getting hung on what I think on something small. I have attached my Microsoft NPS Network Policy. Below is my IOS config:
aaa group server radius corp-radius server 10.15.10.20 auth-port 1812 acct-port 1813 ! aaa authentication login default group corp-radius local aaa authentication login radius-localfallback group corp-radius enable aaa authorization exec default group radius
My modem is an Arris Model TM502GI don't remember how to set it up. That is what cable goes where & is there anything to do on the PC With WiFi for it to connect with my router?I am 70 years old with a limited knowledge of computer and other electronic gadgets.