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.
I have connected an ASA 5505 to an ADSL router that is able to assign the IP address and the also the DNS servers for the ISP for the outside interface. The ASA is loaded up with IOS "asa842-k8.bin"
I am using vpnclient with a hostname as oppose to an IP address to connect to a headend remote server. If I hardcode the DNS servers IPs in the "dns server-group DefaultDNS" I am able to resolve the hostname. If I then remove the IPs from the group and rely on the dhcp to assign them, when I try to resolve the name I have an error at the console "ERROR: % Invalid Hostname"
After 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 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.
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.
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?
I 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.
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]
I 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.
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
I have Windows 7 x64 on my desktop, laptop, and HTPC. The past few months, everything worked fine. Today, I can ping my IP address but I cannot ping the host name on all 3.They also do not show anything in the network window, just the computer that I'm on.
We have one business application, accessed across GCC region by having a single entry with individual computer hosts file, ie123.123.155.116 myappl.mycompany.com and other than Bahrain, all countries are able to successfully resolve the hostname (application only works against hostname (Oracle EBS)) against this entry with the hosts file. Now, prior contacting the ISP in Bahrain (where internet is regulated due to the current political situations) we need to know whether anything could be done from our end to resolve this issue.
How is a computers hostname translated into an IP-address?Eg. when i enter "\server1" into the "run"-menu i get access to my server at IP-adress 192.168.1.2, but how does my computer know what IP-address is it?
I manage the network of a small (120 users) network spread out over 5 sites within a 10 mile radius (for normal ops- extended ops can expand to include other cities).I think I'd call that a Campus LAN, perhaps it's just a really small MAN (for normal ops)...I am starting my CCENT/CCNA track so this may be blazingly obvious to some of you- but I'm sure to learn something either way...Every now and again we have to go find "hostname "X"" for an update that won't roll out by way of our (Server Sr SysAdmin's) tools, so we actually have to put hands on it. Unfortunately the prior admins didn't document the inventory to such a level that we know "laptop_015" is in the building down by the college.
I DO have documentation on my equipment (I'm the Network Sr SysAdmin) that I have rolled together over the last 9 months being here...I have a Cisco 5520 ASA, and use ASDM to manage it. What would be extremely handy would be the ability to put a query in the system to report back what switch a given hostname is plugged intoBetter yet, if it could tell me switch and switchport.I imagine this would be simple if I had the MAC address- there's got to be a way to grep the switches for a given MAC- but not sure if it'll work in a similar fashion for ARP lookups.
is there any way to apply hostname or object network in the syntax? The command gives the option to use hostname or A.B.C.D but doesn't accept the hostname PIX1(config)# filter url except 0.0.0.0 0.0.0.0 ?configure mode commands/options: Hostname or A.B.C.D The address of foreign/external host which is destination for connections requiring filtering Can an FQDN be used as a foreign/external host?
Our Cisco team does inventory pulls with CNC and i was informed that this uses the hostname field currently the report pulls the IPadress, the discoveries that run on the LMS populates displayname field and puts the IP address in the hostname field. is there anyway to update this via query or process, i have too many devices to manually update this.
I'm trying to use MRTG and SNMP on a Windows Serveur 2008R2.I want to manage my Switch with mrtg, but it don't show me which computers or server are connected to the Switch's ports.All I have, in the .cfg file is the interface name ( like S0/0 ), which are useless for me, I would like to get IP adresses or hostname but mrtg doesn't seems to do it.Any of you know if Mrtg can do that ? or maybe there are some others ways to do that ?
As far as I understand it Fault Manager need to be able to do reverse lookup for ip adresses to show the correct name in the "device name" column. I have double and tripple checked and all devices that only is shown as an ip address do have a reverse in the dns used by the LMS server. The device is correctly registered and inventory have been run. If I hold the mouse pointer over the crosshair on the row of the offending device all info is shown including correct device name and fqdn.
The server is upgraded from 4.2.1 to 4.2.2 and we have the same problem before the upgrade.
I have a new 1262AP configure hostname prompt, “APacf2.21c6.820e# lwapp ap hostname ccsaa ERROR!!! Command is disabled.”does not change the hostname of the AP to the WLC, this is why?
we use LMS 4.2.1 and we noticed a strange behaviour when starting a discovery. From aprox. 160 devices some devices are displayed as IP Address instead of hostname. Every device is DNS resolvable and has a value for "hostname". I´ve tried every possible option in the global discovery settings but some devices have the IP instead of their hostname. how to fix this?
I've got two RV082's connected. Each has a dynamic IP (changes typically every few weeks). I've configured the tunnels on both ends with a local and remote "Remote/Local Security Gateway Type" of "Dynamic IP + Domain Name(FQDN) Authentication".If I look at the VPN Summary tunnel status, it shows an IP address of "mydomain.dyndns.org 0.0.0.0" under the "Remote Gateway" column heading. The Tunnel Test "Connect" button is N/A.I can resolve both of the mydomain.dyndns.org entries on both sides of each VPN using the Diagnostic DNS lookup tool within each router. If I hardwire a fixed IP address for the Local and Remote Gateway everything works just fine. VPN is good.
I just can't seem to get the "mydomain.dyndns.org" function to work. It appears the router can't resolve the dynamic IP from the domain names on each of the routers.
My router/modem is a DSL-2740BI created a hostname [URL] At my service provider I was able to create a DNS setting where I specified my routers IP address.In my router I think I created a port forward (TCP port 8080 on both external and internal) with the ip address of a small "web server" (an Arduino module for home automation).When I enter my hostname I get to see my router config page instead of my "Arduino page".
i successfully configured my befsr81 router hardware version 3.1 with a dyndns hostname account. how often is it supposed to update? it doesnt seem to update till i login to the router through my browser. where is successfully updates. is there a way to choose how often it updates?
I am working with an ASA5505. I have configured a Remote Access IPsec Connection profile. This profile is configured to give clients a virtual ip address via DHCP as shown in this configuration example: url...When the DHCP request is sent from the ASA to the DHCP server, the hostname in the request is set to the name of the IPsec connection profile and a number. Is it possible to have the hostname set to the host name of the client that initiated the connection?Does the ASA support receiving a hostname as part of a IKE Mode Config Request?
we are running LMS 4.0 on Windows Server 2008, and just changed the hostname of the server, as the former on reflected it being a test system. However, after rebooting the server (as required by windows), the LMS application did not launch.After rolling the windows server back to the old hostname, the LMS started working again.Why is this? Isnt it possible to change the server hostname after the LMS has been set up for the first time?
I am unable to login to switch c3560 through Hostname but able to login through IP address. when i am putting the command : login authentication telnetpwd
getting the below message:
AAA: Warning authentication list "telnetpwd" is not defined for LOGIN.
I am having issue with my network as my router won't resolve most of the hostname of the network, I have 30 devices on my network, and only 4 names are displayed on the available local host. It makes it very difficult to identify the devices on the network.
