I was thrown into trying to fix a friends pc being told that the internet wasn't working.What I've found through some messing around is that I am able to pull up websites with the ip address but trying to use the domain name give a "Host Not Found". Similar error when trying to do a ping. However doing an nslookup will pull the ip's for a domain. I've done the dns flush, the netsh commands that are floating around to no avail.
View 7 Replies I'm having with my VPN Server on my Cisco 2621xm.
I started by creating a VPN - everything worked great. I assigned the DNS Servers, Domain name, WINS Server so when I connect I'm able to resolve local hostnames on the network with no problem, however, I had no internet access... I then set up a split tunnel access list. Since I've set that up, I'm now able to ping internet based addresses url... but no longer able to resolve internal host names. I can ping the ip addresses, just name resolution no longer works. [code]
Region : UnitedKingdom
Model : TL-WDR4300
Hardware Version : V1
Firmware Version : 3.13.23 Build 120820
ISP :
Region : UnitedKingdom
Model : TL-WDR3600
Hardware Version : V1
Firmware Version : 3.13.23 Build 120820
ISP : BT Infinity
I am running a Windows Home Server machine called "mserver" that has an IP address supplied via DHCP.There is also a local webserver running on port 8089 that I use to access media from several devices (Android Phone, Blackberry Playbook & HP Touchpad...i.e. not Microsoft).When I had the BT Homehub3 in use I could access the webserver via http://mserver:8089 and it would be loaded on all devices. With the WDR3600 used in place of the Homehub3 it cannot resolve mserver into a local IP address on a non windows device. I can access it via http://192.168.0.xxx:8089 so the route is there.Does the WDR3600 have any local DNS resolution? I repeat the BT HomeHub3 CAN do this, so why can't the TP-LINK?
P.S. I have tried :-
Disabling hardware NAT
Turning off UPNP & Port Forwarding
Restoring to factory default
Disabling all ALG's in security
Is it possible to give me NAS and Xbox 360 Host names so that they show up in my DHCP Client list? Currently there are 13 devices connected, 11 of which have a host name but these two do not. It also shows the IP and MAC addresses of each connected device.I just want to make sure that all of the devices that are connected are what I would expect.
View 1 Replies View RelatedI have been asked to do is locate some computers on the network and run a security scan on them. Well i pinged the host name and got an IP address. Then the network admin me look up the switch port that the computer is located on and so on. So i find 3 of the computers im looking for and when i get on the computer and look up the name but it does not match the name given to me. So i do an ipconfig /all and see that the computer has the right IP address and MAC address but not the same name. So my main question is, are these computers one in the same or is something messed up?
View 1 Replies View Relatedwhere the host names do not properly resolve with the right ip address.Example, I ping a host name, it gives me an IP, but when I VNC into the workstation, it is a totally different host.
I have issues with the same host name duplication in different VLAN's in the same domain.Scenario:I have 2 VLAN's named VLAN A and VLAN B.If i assign in VLAN A for one of the computer name as Comp1 it's not in the network so its accepting.in dns will be replaced with VLAN B and if i ping i can see the ip also from VLAN B.
View 18 Replies View RelatedAnyway, I am looking for a way to discover host names of Apple devices (namely iPods and iPhones) that are on our network. I've tried a number of programs like Nmap, Advanced IP Scanner, and LanSpy to name a few. All of them will report back the MAC address with no problem but no dice on resolving the host name.
My goal is to use the host name to identify the device, and ultimately the person with the device. Any thoughts on how I can go about this? Is there a setting in Nmap I'm missing or perhaps a better program to use?
I am able to connect to corporate VPN with no issues when connecting directly to ISP modem. When I try to complete the same VPN connection via a Wireless Router (Linksys WRT160Nv3) i get the following message: "Network error. Unable to look up host names"I have tried connecting and it will initially connect, but 15-30 seconds it will drop and connection can't be re-established.Is there a setting on the Linksys WRT160Nv3 that needs to be changed?
View 3 Replies View Related I ran into a very interesting problem that occurred today and I'm trying to figure out why it happened. If it was one ASA 5505 that just required the reboot, then I'd have just chalked it up to a glitch, but when we built a new AD/ DNS server on the main network at the main site and changed the 3 Remote site ASAs to point to the new DNS server in the DHCPD options, none of them could ping any local host names to the DNS server at the main site they were now pointing too, but external host names { URL} all translated and pinged fine.
From a laptop on one of the remote sites, we could ping the new AD/DNS server(192.168.0.3) and the old AD/DNS server(192.168.0.2) and everything else at the main site, and telnet to port 53 showed successful across the Easy VPN from the Remote site to the new server at the main site. When wire shark was added to the new DNS server at the main site, the DNS request and replies for {URL}, for example, came and worked fine, but any requests for local resources never made it to the server from the remote sites.
A reboot of one of the Remote Site ASA's corrected the issue. Then I rebooted the other two remote site ASAs, and now DNS was working fine for everybody. I had also tried clearing the ARP cache on the ASAs before resorting to rebooting them. I also tried rebooting the laptop thinking the local DNS cache needed cleared before resorting to rebooting the ASAs. I'm struggling to understand why external, public host names made it through and resolved from the remote sites to the new server at the main site, but anything local failed before even reaching the new server(The new DNS server could resolve requests made by computers at the main site, but the remote sites that traverse the Easy VPN from the ASAs failed). The new AD/DNS server is the only server configured for DNS for all remote site computers.
Is any of this making sense? I'm wondering if clearing the x late or local host tables would have corrected it without having to reboot. I'm just trying to grasp the understanding here and figure out what happened.
I have a small workgroup at home of about 4 or 5 computers. All the PC's, notebooks are running W7. I have one PC that I use as my "always on PC", with all my media and resources I use on it. The NetBIOS or computer name assigned to it is mediapc with a static IP of 192.168.254.150. All my other desktop PC's, excluding the notebooks, have a static IP also.The problem is more annoying then anything, and thus I only work on it intermittently. Today I decided to post after wasting much of another day attempting to resolve the issue.The problem is accessing my mediapc from any of my other computers while using the computer name, "mediapc". If I use the static IP assigned above, there is no problems. Everything works, RDP, Dameware, Telnet, SSH, Ping,Tracert, etc. If I use the computer name "mediapc" then it fails with an unreachable host error or similar. The reason it fails is because somewhere in my network or in the mediapc itself, it wants to resolve the "mediapc" name to an unknown IP of 192.168.254.47.
Now with this said, I can still share files and access the mediapc using the name in a UNC syntax, like //mediapc/data works fine or directly clicking on the mediapc share under Network works also. If I Ping mediapc from any other PC than itself, it fails with the 254.47 IP. If I try to use any remote connection software and use the name mediapc, it fails to connect.This is what I know and have tested:
1. Adding a host entry to all the client computers works but does not fix the root of the problem.
2. nslookup mediapc reports the wrong IP of 254.47
3. Remote connections as I mentioned above fail because the name is resolving to an invalid IP.
4. Pinging mediapc from itself, displays the correct IP of 254.150, although I have to use the -4 parameter.
5. Arp -a on all PCs report correct IP of 254.150 with the correct MAC address. (There is no 254.47 listed)
6. NBTstat -a mediapc reports correctly and shows the correct MAC address.
7. Network shares work correctly from and to the mediapc without issue. No access problems.
8. I have deleted all arp entries and flushed the dns with no change.
9. MS mentions to change order of the Bindings of the adapters, yet I only have one Local Area Connection.
I am having trouble with getting a copier that I have networked to stay registered in the system. When connecting all the equipment back for the new year I was having trouble getting this one specific copier back online properly. I used to have it assigned with a static IP because the person that was here before me had all the computers map the printer using the IP instead of Hostname but that was causing IP conflicts so I removed it and mapped the printer through Hostname which is made "MPF-TOSHRM328"So now for the actual problem, after the copier got the new dynamic IP of 10.8.214.151 i thought it would be fine and everything would click in because it was mapped to the host name and not the IP. But when I do a tracert on the hostname it still shows up with the old IP. and now that the old ip has been reassigned it actually points to a physical machine now. Weird. All attempts to flush the DNS have not resolved the issue. I even tried going in and deleting the entries in manually. No luck. As a point of reference here is the result from the tracert.Tracing route to MFP-TOSHRM328.78B450.nycboe.org [10.8.214.126] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms SLS330W09 [10.8.214.126]Trace complete. I should also mention that this server is only here in the sense that it is the DC for the computers on this floor. There is a whole other system that assigns the IP's and handles the DNS. I do not have access to it, it is run by the main network people at the central offices.
View 9 Replies View RelatedAfter upgrade to 9.0.1 from 8.4 I have problems with reverse dns resolving, like this:
named[2679]: DNS format error from 193.0.9.1#53 resolving 82.64/27.195.26.72.in-addr.arpa/PTR for client 127.0.0.1#37124: question section mismatch: got 90.64.195.26.in-addr.arpa/IN/PTR
Only solution I found is to disable inspect dns, which is not very good.
I've just installed a 2504, upgraded the firmware so that 3602i ap's can attach. As a test I left the network open and am running dhcp from the 3560 switch. Why am I unable to ping or connect to a device by name within the same subnet on the "wired" network? There's no DNS server.
View 2 Replies View RelatedI'm just wondering if its possible to ping an IPv4 host using the IPv6 host assuming that the NAT64 has already been implemented?
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I have a host that can successfully connect to a PIX 515E (7.x OS) via VPN Client; however, I have no IP routing to the LAN from the remote host.The VPN IP pool works finem,The LAN default gateway is the inside interface on the PIX; the network is flat L2 behind it.The default route on the PIX points out; no other routes are defined,The VPN remote host can be pinged from LAN hosts, but the VPN remote host cannot ping any LAN host, not even the PIX inside interface.
View 2 Replies View RelatedASA 5510
Ver 8.2(5)
I have been looking all over the place for the answer of how to allow clients on an IPSEC VPN to ping from host to host.
Having trouble with resolving DNS entries with their WRT160Nv2? By resolving I mean, every once in a while, it browsers will just hang and say "Looking up..." When using nslookup, it says DNS timeout. DNS request timed out timeout was x seconds. Can't find server name for address xxx.xxx.xxx.xxx: Timed out Default servers are not available Default Server: UnKnown Address: xxx.xxx.xxx.xxx
I have the firmware 2.0.02_11 installed. Hooking directly up to the modem, I can resolve entries consistently. When I plug in the router, it works for a little, but becomes very unstable after some time. I spoke with support about this and they suggested changing the IP of the router, as well as lowering the MTU to 1400. Both did not improve stability.
I'm setting up a site-to-site VPN with an RV082 ( and an RV042). The RV042 is behind an Actiontec modem/router that has the local public IP address. So, this address is registered with dyndns so we can find it with a name.
The name is entered into the RV082 VPN Remote Group Setup as: Dynamic IP + Domain Name (FQDN) Authentication The given name for the dynamic IP is entered into Domain Name: But, in the summary, the entry for the Remote Gateway shows only the name and 0.0.0.0 for the IP address.
This same RV082 can get the same IP address from a ping of the name just fine.
I have a e4200 sitting behind a BT home hub 2. The home hub provides internet connection to the e4200, and the e4200 allows all devices to connect. I am able to ping internal IP addresses, but when I try to ping by device name it returns the external IP address. How can I view / amend the DNS table on the router?
View 9 Replies View RelatedI am attempting to port-forward on an ASA 5500 to internal host .100. The outside interface recieves its IP via DHCP. Packets are being denied so I ran packet-tracer and get the following error from outside to ssh port on internal host.
#packet-tracer input outside tcp 79.x.x.x 1025 71.x.x.x ssh
Phase: 1
Type: ACCESS-LIST
Subtype:
Result: ALLOW
Config:
[Code]...
I been having trouble with my pc ... it looks like it wants to load the page and takes forever and then it says DNS lookup failed ... sometimes it loads but I have to keep trying until it does load.. It's a Windows XP
View 9 Replies View RelatedI am having a very strange issue with connecting new machines to reach the internet.We have a ASA 5505 which the previous tech configured the DHCP pool to 192.168.1.60 - 192.168.1.110
We ended up reaching our limit which I changed it to: 192.168.1.60 - 192.168.187
Then next day when I arrived to work, our DC was hung from windows updates. Once we got everything back up, every computer currently on the network can reach the internet/VPN tunnels etc. So (continuing with my day) I created a new server in a VM (Hyper-V)I can ping everything internally (even the router) 192.168.1.1, but I cannot resolve DNS. I have configured a static IP, tried Dynamic IP.I have looked for any ACL indicating to block outside the range of the old DHCP pool but no luck.On my local maching I can ping the DNS addresses, but just not on the new server.
whenever I start downloading any large file I start getting DNS lookup errors from Chrome. I can still download the file and even connect using TeamViewer so I am still connected to the internet is some fashion. My roomate is connected to the same network wirelessly and has not had the issue yet. I am currently connect directly to the router which a Belkin.
View 5 Replies View RelatedI want to find out what machine a user is logged into on a local network. The syntax should be something like :lookup user@domain dns.just not sure what flags to pass?
View 1 Replies View RelatedSo I just got a new Acer ultrabook and it was working fine until a few days ago. It keeps saying the DNS lookup failed. I've tried everything I can. I made sure it wasn't chrome, doesn't work in Firefox. Reset the modem, did a DNS dump, set the DNS to a 888thing. Utorrent is connecting to the internet fine and I can connect for random periods of time. If I do trouble shoot over and over eventually it starts working. Everyone else in my house gets internet even my sister with the same computer and model.
View 14 Replies View Relateddns lookup failed, on all web browser (IE, Google, Firefox). I did ip and winsock reset, did networking ins safe mode, it will ping my ip address but will not ping any other address. My computer (running Vista home premium) says that I have internet access but it does not work. This happened on one computer and then on another one about 6 days later and they both are wired to a router.
View 4 Replies View RelatedMy netbook keeps getting DNS Lookup Failure messages. This happens about every 20 minutes, give or take, though sometimes it can go longer before the failure. I can "solve" the problem by quickly repairing the network connection, but that's tedious. It happens only on my laptop and not on my housemate's desktop (wired connection) though he did say that it happens to him on his laptop as well. In looking around I thought the problem might be because i'm using Chrome, but it happens on Firefox and Opera as well.
View 5 Replies View RelatedMy WLAN has been working fine for the past 6 months. Recently it started connecting and disconnecting itself. ANd now it will only connect to the network but wont give internet access. I can connect to the same router using an ethernet cord. And I can connect to the wireless network using my phone or other computer. There are no driver updates for my network adapter, and I tried reconfiguring the router. That worked for a short period of time, but now I have the same issue. I tried a system restore back to before a recent virus software update to see if maybe that update was causing the firewall to block something.
View 14 Replies View Relatedwhenever i open chrome or anything i get DNS Lookup failed.
View 11 Replies View RelatedWell first of all id say im pretty good at these types of things as they have happened to me so many times. But i cant figure this one out. Yesterday my internet just went out. All of the lights on the modem are still on everything says it should be connected but just doesnt work. When i try to open webpages it says DNS Lookup failed. Called tech support they are sending me a new modem atm, but i have 2 other ones around that i have tried and they say that im connected to the internet, but nothing same lookup error and everything so i do not think it is the modem. Flushed dns, manually entered the isps dns , Dont know what else to try at all.
View 14 Replies View RelatedIv had this problem with two wireless repeaters now. when im connected to just the router, i am able to access the internet. however when i plug in and set up the wireless repeater ( the latest one is a amped wireless sr300) it works for a few min and then i get a "DNS lookup failed" when trying to access sites. this repeater replaced a hawking hwren1. which would work for a few min and then lose the network.i believe this is a problem with our internet connection into the house, but could it be a caused by the router? (wrt400n) our isp says its not their problem and that its our router, but this is the 4th one in under a year.
View 2 Replies View RelatedI have a Windows XP laptop and a Windows 7 desktop. The desktop has no wifi support, I had built it myself. To get internet on my desktop (used for games), I had connected my laptop to the pc, and the laptop picked up wifi from my AT&T gateway in another part of the house. ( I can't move the gateway currently) I have been wanting to connect the desktop to a router/repeater/bridge that would pick up my gateway signal, therefore eliminating the use of the laptop. I also have an Xbox right next to the pc, so I din't want to get an adapter because then I would have to purchase two, so I picked up a a wireless n router with 4 ethernet ports. ( then I could connect both systems using 2 ethernet cables) [URL] I knew when purchasing the router that it had repeater/bridge support. Currently, I have it configured as a wifi bridge. I can connect to it via my laptop, on the wireless networks page, it shows my gateway signal, and the bridge/router, so I connect to the router. It says I have excellent connection, but I can't connect to the internet? Using Google Chrome, it says DNS lookup failed. I can't get on any website, only the router's config page, which is 192.168.1.1. I also connected the router to my pc, and when troubleshooting it says DNS server not responding, may be non existant or incorrect?
View 4 Replies View Related