I'm studying for a Cisco certification and I'm trying to wrap my head around the routing. I understand how routers work for the most part and how the get updates about networks and how many hops away they are, but I don't get what happens when a router doesn't know the path to a network.
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giving unauthorized access and no internet access
Windows IP Configuration
Host Name . . . . . . . . . . . . : KHANBALOCH-PC
Primary Dns Suffix . . . . . . . :
[Code].....
I have been having a lot of trouble getting my computer to connect to the internetIt is only one computer on the network that consistently has problems. It was working ok recently, except that I would have to turn the router off and back on fairly often, because the computer would say that the DNS lookup failed. Today it stopped working, and now says that the adapter does not have a valid ip configuration. I do not know what to do.
View 12 Replies View RelatedA month ago my ISP was routing half my subnet (129-254) over DSL. I just moved and routing no longer works without NAT. The issue is probably with the new DSL 'modem,' a zhone 1611-A1, but I am not sure how it should be configured.The 1611 is connected to a WRT610N, which works in NAT mode with the following settings:[code] With the previous settings, networking doesn't work from a workstation, though I can traceroute from the 610. I would like all workstations on the "LAN" to have fully addressable internet addresses like the previous configuration.There is an admin interface on the 1611, but the cursory settings I've tried don't work and I'm not a routing expert. The ISP is kindly routing my network, but they don't provide much support.
View 11 Replies View RelatedI have a Cisco router 877. I am trying to configure a backup with ISDN.The primary line is an ADSL over pppoe. The problem is that despite the primary line fails, doesn't change the path and continue going by the main route.I have a very similar setup, also with a cisco 877, but with a normal DSL and it works perfectly.I solved the problem by activating a tracking but is slower than the other method.
View 2 Replies View RelatedIn regards to becoming a Network Technician with the certification. Are there other passes as such that need to be obtained that i could slowly gather up, such as safe pass and so onIm thinking ahead and like to be well prepared.In regards to my CCENT course, thnigs are going pretty well and if all going well, my college is willing to give me a days work experience out side of my current work commitments to gain some crucial experienceHopefully when the time comes and i receive my CCENT qualification i can put experience along side it on my cv aswell as the above mentioned safe passes if needed.
View 3 Replies View RelatedRecently i purchased 1 no Cisco router 1941 from vendor but he didn't active Cisco security certification or SMART NET package.
View 2 Replies View Relatedhave just set up a WLC 4402 as a Guest WLAN controller on the DMZ of our network. I have successfully managed to get our internal controllers to connect to it, with the exception of 1. it says the control path is up but the data path is down. the other 14 controllers worked fine, and in testing the last one was OK but it is now not working properly. the 2 controllers can ping each other but just won't create the data tunnel. there is a firewall in the middle but that has been set up to allow traffic between the 2 groups of controllers to be unrestricted.
the internal controllers are 4404's and all controllers are running the same version of code. 5.1.151.0.
I'm currently trying to set up a new infrasturcture with PEAP.
So, i've got redundant CA routers (c1921), an ACS server and 1262 AP's. Everything is working fine and as i want it to.Certificates are autoenrolled and so on, but if the CA root certificate expires, how to tell the AP to get the new root CA cert.
The root-certs are made by auto-rollover, and rolled on the CA router, but I got no change to get this root-cert on the AP.Is there a way to get them in an automated way, like rollover or enrollment?
I thought I would leave a message on a problem. I did two chats to the support desk and this was not brought up and it is obvious. I just installed the 4200v2 as a replacement for a NetGear. I bought for the n performance and the USB for a shared disk/media file server. I connected a640G Western Digital My Book to the USB. I was able to see the drive in the asp interface of the router, but I kept getting the "error code: 0x80070035 network path not found" message. My computer is a 6 month old HP with Windows 7 running Bitdefender Internet. I found I could get to the drive from my wife's Toshiba (only used for browsing, so minimal security), so I thought it was a firewall issue (also what Cisco said). After doing some Internet mining, I found that the issue is the Netbios setting in IPv4. My PC had the setting Default, which requires the DHCP server to provide the setting and apparently this was not set by the 4200. Without Netbios the disk cannot be mapped. Changing this to NetBios "enabled" solved the problem. This can be reached by going into the Control panel:Network and Sharing Center. Click on the connection (either local area or wireless), then open the properties, click on the TCPv4, Click properties, then advanced. Go to the Win tab and select Netbios enabled.
View 1 Replies View RelatedI have an issue that I am trying to track down. When I have 2 servers on the same VLAN on my AS pair, all is good because nothing leaves the switch. Where the issue is, is when I have 2 servers on different VLAN's and it requires a hop across the Core router pair. This hop drops the throughput rate by about 20-25% (from 44M to 35-36M)I think I know the issue, but want some input to from other to make sure I am not off-base. I have a pair of 6509E chassis' running Sup720 (VS-S720-10G) with CEF720 (X6748-GE-TX) modules. This is my Access Pair running VSS to look as 1 switch.
These tie into the Core pair of 6500E chassis' running Sup720 (Sup720-3B). This issue I see is that the core has a CEF720 card (6724-SFP), but the AS pair does not connect to the core on that card, they connect on a RJ45 Ethermodule (6148A-GE-TX) card. Would the fact that the AS pair does not connect to the core on the CEF7220 module on the core, cause the traffic to not make use of the CEF features of the Core and make each packet then have to be processed by the core instead of Express Forwarded?
I just received a blu ray player for Xmas that has an Ethernet connection for streaming Netflix,YouTube, etc. my problem is my router is upstairs and the blu ray is downstairs. I really don't want to run an Ethernet cable from the blu ray to the router. Can I use another router on the same network and have it close to the blu ray?,I have a netgear router just laying around and the main router is a Verizon fios router.
View 4 Replies View RelatedI have a need to use two routers (Each with different ISP) on my (LAN) office network.I presently DO NOT want to go the (Two ISP's on one router, or Load Balancing router). I Just simply want two routers with two separate ISP's.I will assign the managers workstations to the faster ISP, and other Workstation to the slower connection.And it seems to work, and all resources seem to be available on the LAN, regardless of which (Gateway) Router(1 or 2) I point the workstation to.I assume because all devices are on the same LAN 192.168.0.XXX Is this a proper way to allocate and use two routers on the same LAN?
View 2 Replies View RelatedI have a local DSL line in our remote office. We are connecting a microwave antennae that carries our main office internet to the remote office.I want to be able to connect both paths to a Layer 3 switch and route traffic through the main office with the router connected to the DSL as a fail-over solution.I would really like to stick with HP Procurve's if possible.
View 3 Replies View RelatedI'm trying to connect an Xbox 360 to my University's wireless network using a bridged connection between the wireless adapter and the LAN adapter. I can connect to the internet on the Xbox, but not Xbox LIVE. I get an error message stating that my MTU setting must be 1364 or higher. I obviously cannot access the router settings because they are the schools routers and I do not have administrative privileges. So, Is there some other way to modify MTU settings without that access?
View 1 Replies View RelatedI have a problem figuring out how to setup a home network connection running a VPN. I have been looking through the internet for answers and am still not sure how it all works.
View 9 Replies View RelatedI had a custom device/computer on my network that was hacked from hong kong. It's one of those things where I seriously think the chinese have built a back door into it when they built it or something because everything was secured and monitored.The device runs it own OS or something like that I guess you could say. It can also run it in standalone mode broadcasting it's own signal. Once I figure this out I may not put it online anymore but thats besides the point right now. When it was hacked I'm pretty sure the port it uses to connect was changed from 80 to 591. When it runs in standalone mode I can connect to it but I am unable to actually access it's proprietary graphic network interface. It sends out UDP every few seconds or so and basically I was trying to search for some type of udp broadcast monitor and have tried using network tools such as netstat, port scanning, multicast, etc on all of the big three OS's because sometimes it seemed to finnicky what it wants to connect to. I've tried to let it connect back to my router again which it seems to do, but is then denied access and I think it may even have a trojan or somethng so I don't want it to that but if I have to to access it again I will.In standalone mode I've it usually trys to connect on 192...5 or 192...7 and I've tried to get through 591, 23, 80 etc. multiple times with no luck.
View 11 Replies View RelatedI have the modem feeding a router that I turned dhcp off to use it as a switch, I then have the switch feeding a ubiquiti nanostation and a wireless router (to feed house 1). The other end of the nanostation is in house 2 (1000ft away) where I have it feeding into another wireless router to feed that home hard wired and wireless.Everything works but cannot get both to work at same time.
View 3 Replies View RelatedWe have two networks in our lan: 10.0.0.0/24 and 192.168.1.0/24. Actually the networks are separated. The 192.168.1.0/24 network contains some hosts that ip can not be changed. We want redesign the network and communicate with both networks without routers. I thougnt about changing the netmask for 192.168.1.0/24 in 192.168.1.0/22 (1022 hosts) and change IP's in the 10.0.0.0/24 network in 192.168.2.0/22.
View 3 Replies View RelatedI was working as IT Support in an encoding company. I support over 500 desktop users. my problem is about in entire network because i always encounter hang network in my grave yard shift. Our network system set up have domain server, antivirus server, database server, 4 PC's use as backup servers and 3 unit of network attached storage and approximately 500 units of desktop use for production in encoding. I always experiencing network hanging then after all system will be freeze, so i suggest to shutdown all pc for usually in 5mins then turn on again. In an hour the problem is still exist again and again. I did all possible way to make the production smooth run for my whole shift but still after some hours it occurs again. I dont know what would be the possible reason why the network hangs and stuck up. The network attached storage did not reach the entire capacity, the antivirus server is still updated, the domain and database server are working properly even the PC's use as backup server. There is no internet connection we use in production, so i assure that no virus we encounter in all pc. Is it the cabling? or is it the switches?
View 1 Replies View RelatedI have Dell machine with Win Xp3 loaded, on my local network (and other computers). I set NIC card "Link Speed & Duplex" to autosense & make direct connection to my modem and works ok.When I plug into the network router I get the 'Cable is unplugged' and no Internet connection.I can change the "Link Speed & Duplex" to 10Mbps/Full Duplex and get intermitten connection. Also when I copy a file from Mapped drive I get "Cannot copy xxx - The specified network name is no longer available".
1. the NIC software is recently updated PRO/100 Adapter NDIS 5.1 driver
2. Although Microsoft has suggested Symantec < ver 4 has had an endpoint problem, I have 10.1.6.6000.
3. TCP/IP Properties are on automatic like the other computers.
Have a problem connecting my new IPcamera Elro C903IP so I can access it through the internet. Did the camera setup according to the manual. Local access (wifi network) works fine but access through internet remains impossible. IP of the camera is still 10.0.0.110 but I found out that for access trough the internet the IP would be like 192.168. etc but I can't change it properly.I have cable internet and a wifi router Netgear WNDR3700v2.Documentation that I found about port forwarding etc is not clear enough to me. I tried over and over but can't get it to work .
View 2 Replies View RelatedThe question is apparently simple. A network is given, consisting of
- 1 network core switch: HP 5500-EI (Layer3)
- 4 access switches: HP 5120-EI (Layer2)
They are connected in the shape of a star (the core switch in the center)The task is to measure the occupation rate of this network on a per-VLAN basis.
For example : To be able to generate statistics like: During the last week - Monday to Sunday - the netowork occupation with VLAN 10 traffic was 30% and VLAN 60 traffic was 70%.
We just had a TEW-72GR router fail and replaced it with a TEW-GR. Now I am unable to get to my domain (mydomain.net) from outside the network. Inside the network, all appears to be fine. I can enter that address and get to the site with no issues.We use SBS 2008 with windows 7 clients.All clients can get out to the web, we can send and receive emails, but I can not access the domain.
View 2 Replies View RelatedNew firmware for the Linksys E4200 was released this morning that adds certification for DLNA, IPv6 Gold log, and UPnP. It also addresses the Media Server issues that have been identified here in the community.Sept 28, 2011Last Firmware version: 1.0.03 (build 14)- Added supports of Native IPv6 over PPPoE Internet connection when only keep alive option is selected.- Added supports of Native IPv6 on guest network if there are more than two available IPv6 subnets- Added supports of Native IPv6 on Parental Control- Added supports of 3TB Hard drive with NTFS and HFS+ format- Improved firmware upgrade stability- Improved IPv6 WAN performance- Fixed media server unstable issue- Fixed Cisco LED flashing issue- Fixed some minor bugs- DLNA certified- IPv6 Gold logo certified- UPnP certified
View 1 Replies View Relatedmy computer, my network connections icon have a exclamation mark (!) and it say i don't have internet access,but luckily i have internet access but i can't remote my computer,
View 4 Replies View RelatedHow to play games network by use wireless TP-LINK I have 2 laptops and one Desktop I want to play games at home, but without the use of the Internet.
View 1 Replies View RelatedMy customer has 3 computer
1- Windows xp
2- Win7
3- Apple
4 new sony laptop.
Vaio would not connect using WEP 40-bit key. Logged into Airport Extreme router with Airport setup utility for Windows from Apple. Updated firmware from 5.1.1 to 5.7. Reset Encryption from WEP to WPA/WPA2 Personal.Connected Vaio on Wifi using WPA2. Removed ethernet cable and connection was good at 54MB/s.Completed Windows Update
I have set up port forwarding for my WD Network HDD, which runs a Media Server (Twonky). Now, I have tested the ports and accessed it through the internet and it works fine, until... I click a link to open a folder and suddenly I get a "No such page" error thing. I have however identified this problem, it seems that when I go off the main page it re-routes to the original network address, not my IP forward address. For Example if my IP was 82.9.12.456 and the port was 800 i would go to "82.9.12.456:800" and it would load but once I navigate i go to "192.168.0.*:800/*****" and does not load the page. If i then copy and past my IP into the URL it works, but this is annoying.
View 3 Replies View RelatedI have a Airtel Internet Broadband connection and I have a lan having around 10 workstations. I have another computer which I want to use as a server through which all the internet traffic will pass. The server has two lan cards(one on motherboard and other one is usb).I have connected broadband modem to lancard1(on motherboard) and have connected the lancard2(usb) to the lan switch.Now how to proceed further, so that internet service is available on all the workstations connected to the lan switch.
View 4 Replies View RelatedMy system problem is after starting the computer within 5minits network services are disabled and network path not connected but communication is working when i am testing the ping command.
View 1 Replies View Relatedi have 9 pcs on a lan. when i attempt to view the workgrp i get a message that indicates the the workgrp is not accessible and network path not found. i have tuned off windows and mcafee firewalls so that the only firewall functioning is with the modem/router(netopia) if i change the workgrp to the default(mshome) i can see the pcs.
View 2 Replies View RelatedI have a wireless network of PC, Acer Extensa laptop (laptop1), and Acer Aspire notebook (laptop2) which connect wirelessly to a Livebox. All machines are running XP (SP3). Laptop2 connects to the Livebox via a Broadcom 802.11g adapter.There is no problem with any of these accessing the internet. Until recently (not sure how long ago) there was no problem with any of them accessing each other.Yesterday we discovered that laptop2 has lost contact with PC. All other connections are fine (including PC to laptop2). I have checked evrything I can think of and have carried out a System Restore taking the machine back as far as I can but that has made no differenceLaptop2 appears to recognise the workgroup in its 'preferred networks' box but the PC does not appear in its list of computers on the network and any attempt to access the network (My Network Places>Entire Network>Microsoft Windows Network & click on MSHOME) results in "you do not have permission ..." then followed by "Windows cannot find the network path.."
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