Renew Method Using Google's DNS Server
Apr 13, 2013I am having some issues with my internet connection. release and renew method and using Google's DNS server.
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Cisco AAA/Identity/Nac :: ACS Server 5-2 Appliance Gentle Shutdown Method?
Mar 29, 2011I need to move our (secondary instance, version 5-2) ACS server to a different server rack and I have not been able to find a gentle way to shut down the appliance (not the windows version). Does one exist or is it just the power button/cord?
View 2 Replies View RelatedServer At Google Can't Be Found Because DNS Look-up Failed
Nov 17, 2012My wireless internet at uni is showing up with two errors, when its connected it will come up saying that there is an ip address conflict then it will work for a short time then show this message when I try to load a webpage:The server at Google can't be found because the DNS look-up failed. DNS is the network service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing*Google Chrome*from accessing the network.
View 13 Replies View RelatedCannot Renew IP Address - Unable To Contact DHCP Server
Mar 31, 2013I randomly lost Internet connection, and since have not been able to Renew an IP address! Other people in my household can connect just fine. I've tried numerous things to get my internet back, but continue to be unsuccessful in doing so.
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:Documents and SettingsMike>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : miker
Primary Dns Suffix . . . . . . . :
[code]....
Can't Access Google Sites - Server Not Found
Jun 10, 2011Everytime i try to go to a site that uses a google server, i get the message "The server at www.google.com can't be found, because the DNS lookup failed. DNS is the web service that translates a website's name to its Internet address. This error is most often caused by having no connection to the Internet or a misconfigured network. It can also be caused by an unresponsive DNS server or a firewall preventing Google Chrome from accessing the network."
View 2 Replies View RelatedSecurity / Firewalls :: Virus Disrupting Connection To Google Server
Aug 11, 2011My computer's virus protection expired so I Googled a free one and downloaded it without doing much research on it. It contained a virus and now it's disrupting my computer. I ran Microsoft essentials security and found malware and it removed all threats. The virus is disrupting my connection to the Google server. I cannot use google web, images, or mail but I can maps. I tried following the steps suggested here but my host file name is different and contains different information.[CODE]
View 4 Replies View RelatedPractical Method To Measure SNR?
Oct 14, 2012As we know SNR (signal to noise ratio) is very important in communication special in wireless. So I wondering : How is SNR measured (by using practical method)?
View 2 Replies View RelatedCisco :: Encryption Method On ISAKMP
Feb 3, 2012Is 3DES on ISAKMP considered to be secured for your average site (other options are AES/DES)? I'd imagine AES should be much stronger but what about DES, is that considered adequate or broken? Is there any proof of concept attack against 3DES on ISAKMP (or ISAKMP in general)?
View 2 Replies View RelatedCommon Method For Ups Requirements And Max PoE Switches
Apr 25, 2012We have a scheduled office move where we are consolidating 2 remote offices into one. I’ve been asked to spec out the correct size UPS to support all of the network equipment for this new office.I went to the Cisco website and I see on the datasheet for the switches and router where they talk about the wattages and BTU’s but how can I go about deciphering from that information what my total wattage and BTU will be for each switch and router?What numbers should I be looking at? For instance, we have 3 3750 48 port PoE switches. So if I look at the datasheet for that switch they have 4 different columns, one for 100% throughput power consumption, one for 5% throughput, another one for 100% throughput for max PoE load and one for 5% throughput with 50% PoE loads?Is there a common method for deremining UPS requipments? For the switches I pretty sure I need to assume max PoE load in the event every port has a phone plugged into each port.
View 3 Replies View RelatedCisco VPN :: AES256 VPN Encryption Method
Dec 21, 2012I've some VPN encryption method questions.Is it recommended to use different encryption algorithms for both VPN phases (phase 1 and phase 2)?I’ve read once that it is much secure to use different encryption algorithms for each phase.In my opinion, I would go for the AES256 algorithm in both phases. But maybe it is a better idea to use AES128 or AES192 in the first phase and AES-256 in the second phase… I don't know.After saying this, I’m also wondering about the best VPN encryption setup for a site-to-site VPN (IKEv2) when using a Cisco ASA like the 5510, 5520 or the 5515.Which encryption method is recommended for phase 1 and phase 2Which PFS / DH-group should be used (considering CPU load and security)
View 2 Replies View RelatedCisco WAN :: BGP Filtering Best Method For 2921
Nov 3, 2012I have recently upgraded my company's network significantly, and in the process removed our Cisco edge routers and firewalls (gasp!), and replaced them with another vendor who gave a better price point for the router.However, i was only able to get ONE edge router, whereas before I had two, so I want to recycle one of my old 2921's as a cold standby (in case the brown sticky stuff hits the rotating air distribution blades, and $other-vendor router dies).Trouble is, the 2921 does not, I believe, have sufficient system resources to take the full routing table we're getting from our two ISP's.What I would like to ask is people's thoughts on the best method for me to configure the BGP setup on the 2921 to do the following:
-Accept the default route from each ISP and discard *everything* else in the route table
-Modify our advertisement (ad prepend) out the "secondary" ISP to reduce the priority of traffic coming in over this link.
-Configure the OUTBOUND priorities so that the "primary" link is used by preference for outgoing traffic (which will effectively shut down the secondary link for outbound traffic
Method Of Remote Database Share / Access
Feb 21, 2011what is the easiest method permitting a local and a remote pc to access the same database ? They both have internet access.
View 3 Replies View RelatedCisco AAA/Identity/Nac :: Best Method Of Migration From ACS 4.1.(1) Windows To ACS 5.2
May 9, 2011we currently have 4x ACS 4.1 (1) build 23 windows based and we are going to migrate to ACS 5.2 appliance 11211.the first pair we are using simply local authentication for multiple vendor firewall and routers, with one custom radius vendor-specific attributes, with now she exec.the second pair we are using for wireless clients authentication through AD, with dynamic mapping.
in order to migrate what would be the most suitable migration, whether to use Migration utility or export those ACS objects and import them into the new ACS 5.2.
Can't Renew IP Address
Jan 7, 2013I have just moved my desktop to another house and now I cannot access the Internet. I have a USB adapter which has connected to the hub and has an excellent connection but it keeps trying to aquire network address. Then stops and starts again.
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How To Renew Dns Suffix
Dec 25, 2011i have flushed dns cache and i do not know how to renew dns suffix.
View 1 Replies View RelatedCisco AAA/Identity/Nac :: Method To Control Access To Different WLAN On Same ACS 5.2 And WLC
Aug 6, 2012is there any method to control an access to the different WLAN(PEAP) on the same ACS 5.2 and WLC?That is, there is two AD groups the one have access to domain network only the other group have access to internet only and may be third group that have access to both networks.Currently if i add new authorization policy the user will have access to both networks.
View 1 Replies View RelatedCisco VPN :: 5505 Certificate Only Authentication Method With AnyConnect
Jul 7, 2011Any instructions to configure an ASA to allow authentication by certificate only on an AnyConnect vpn?I'm running an ASA 5505 with 8.4(1) and AnyConnect 2.4.7030 on an Android phone.I currently have the AnyConnect client connecting ok using username / password for authentication.
I have loaded the company root certificate (internally generated) into the ASA "CA Certificates" and generated an Identity Certificate for the ASA.
Cisco LAN :: 6500 / 3550 - Method For Detecting Loops
Sep 23, 2012I am a network tech at a local school district (easily enterprise network). I am just a worker bee, so have no say in the design of the networks. Our topo at a site goes WAN rtr---LAN rtr (6500 of 3550)----distro switches----access switches.
Now at most of our sites we use Extreme, which has a handy feature called ELRP Extreme Loop Recovery Protocol, despite the name, this mechanism just detects loops, in the logs we can see, ok...off the LAN rtr, port 2, then on port 2 we see whats hanging off it...ok, loop off port 5 of that switch.....and work your way down the room.
We do not have STP on our network (dont ask) and yes, logging is not set to standards also......what is the best way to detect loops? Commonly these loops come from classrooms that have mini-sw's that are looped onto themselves or a wall jack connected to mini sw and that mini sw then connected to another wall drop going back to same sw. Sometimes I disable all ports minus the WAN uplink on the LAN router, then enabled ports one by one while having a LR hooked up to a user facing rj45 port on the 6500 and when the LR (link runner) shows 100% util, I know that port is now suspect.
Unable To Renew IP Address
Mar 19, 2013I lost connection for a moment on my computer last Sunday, it connects with a very strong signal but doesn't renew the IP address. I tried Run>cmd>/release>/renew and got a message saying something like "Cannot contact your DHCP server" (something like that anyways)
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Can't Renew Ip Address Until Reboot
Jun 7, 2011i'm running xp sp3, but it is not completely updated. (i was offline for about 8 months and missed tons of updates, still slowly getting things up to date but not there yet.) i install new programs all the time, but none that seem to coincide with this particular problem.
starting a few days ago, my internet randomly goes out. when i try to "repair" my connection through network connections, it says windows cannot renew the ip address. going to command prompt and trying ipconfig/release or ipconfig/renew gives a message about RPC not available. however, a simple reboot fixes everything. for a few hours or so.
i haven't been able to pinpoint exactly when the problem occurs. i often leave utorrent and peerblock running when i go to work - no other programs running - this is what first alerted me to the problem, coming home to find that at some point my internet went down and downloads didn't finish. just this evening i was surfing the web, watching youtube videos, when suddenly my connection went out. this time, only firefox was running, so not a problem with utorrent or peerblock. something else is causing the problem.
Cisco :: Enable Password Fails In AAA Authentication Method List?
Jul 15, 2011I've got a weird problem that I can't figure out. I've de-authorized the switch in the RADIUS server to force an ERROR status to test the backup entries in the AAA authentication method list. However, after I do that and try to log in (through ssh), it just prompts me for my username's password and not the enable password. Here's the debug output:
1d02h: RADIUS: Marking server xxx.xxx.xxx.xxx:1812,1813 dead
1d02h: RADIUS: Tried all servers.
1d02h: RADIUS: No valid server found. Trying any viable server
1d02h: RADIUS: Tried all servers.
1d02h: RADIUS: No response for id 10
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Cisco VPN :: 5520 AnyConnect Authentication With RADIUS Secure Method
Nov 6, 2012I have been successfully able to setup Cisco AnyConnect VPN on ASA 5520 with 8.4 code. I have set it to authenticate against the RADIUS Server (Microsoft Windows 2008 NPS server). I have noticed one thing, on the server under "Constraints and Authentication Method". I picked MS-CHAP-v2, but it is considered Less secure authentication methods. I can click on Add and choose other Authentication methods like Smart Card or other Certificate, PEAP, EAP-MSCHAP v2. I picked PEAP but then the VPN does not work.
So first of all does it really matter if I just leave it to MS-CHAP-v2? Because from my understanding is that AnyConnect will authenticate to ASA and then ASA in the backend talks to the RADIUS server so from a security stand point this scenario shouldn't it be sufficient as no un encrypted or less secure information is available to the outside world? Secondly is there any documentation on using PEAP with Cisco AnyConnect?
Cannot Go On Any Google Website?
Dec 11, 2011I cannot get on google Bad Request (Invalid Hostname). This has happened to me for quite a while now, and i cannot do anything to fix it.
View 1 Replies View RelatedCisco :: 5508 / Easiest Method To Block Employees From Guest Network?
Jun 3, 2013We have WCS and several WLCs (WISMv1, 5508, 4402) all running the 7.0.240.0 code. The "Guest" SSID is "garden-walled" from the corp LANs. We used to have web-auth page that required ID / PW. This became unreasonable as IT Dept was getting requests at all hours for immediate access from guest / resident family memebrs. So we changed the web-auth to remove the the ID / PW and just display corp policy and have to hit a "continue" button to gain access to Guest SSID. Healthcare staff on the floor are not tech-savvy enough to want to use or perform Hotel Ambassador functions.The issue now is that we have employees with smartphones, tablets and even personal laptops conecting the Guest SSID. Sr. Mgt wants to find a way to stop the abuse.I do not believe there is any perfect solution to prevent employees from gaining access, but have been asked to find a manageable method to deter most employees from connecting to the Guest network. Looked at seing up MAC filtering in WCS, it seems that you have to enter MACs that you *allow* on to the network - by default, other MACs are blocked. I would rather have the template block the MACs listed in the csv file and allow access as the default.. We have several SSIDs. Our corporate SSID uses 802.1x and we use Microsoft Server 2012 Network Policy Server (RADIUS) to pass user ID / PW to our AD for authentication. We do not have Cisco ACS. I am not sure if integrating RADIUS is the answer here either. I have had some webex sessions on ISE, NCS, and Prime infrastructure. We are only interested at the moment to monitor / control access to Guest. I have been told that ISE will have "sponsorship" functionality added in soon -- where user fills out info and ID / PW is sent via text or email to a cell phone or other device.
View 2 Replies View RelatedCisco Wireless :: 4402 Any Method To Limit Roaming Between Different Floors In Building
Jun 19, 2012We have cisco wireless network throught the whole 8-floor building on Cisco WLC 4402 and Cisco LAP-1242 AP. There are no coverage holes, but sometimes clients are flapping between two access points at different floors with serious loss in throughput. Is there any method to limit roaming between different floors in the building?
View 7 Replies View RelatedCisco Switching/Routing :: How To Connect Two Switches 4505 Using Trunking Method
Dec 26, 2011How Can i Connect two switches 4505 using the trunking method,…
View 1 Replies View RelatedCisco Switching/Routing :: 3750 - Restrict VLan 103 With VACL Method
Feb 7, 2012I´m facing to one issue with VACL. i have a network lan with 10.40.X.X/16 . in this network i have a Production v LAN 10 with 10.40.10.X/24 and i have created one vlan103 for Guest´ user as 10.40.103.X/24
My goals is to restrict the v LAN 103 to reach or access the v LAN 10, better to restrict Guest user access to the production v LAN. So i try to put this script with VACL method, but does n´t work.
Extended IP access list Restriction-Guest
10 permit ip 10.40.103.0 0.0.0.255 any
vlan access-map Guest 10
action drop match ip address Restriction-Guest
vlan filter Guest vlan-list 10
After that i still able to ping or access to the v LAN 10 form v LAN 103.
Cannot Renew IP Address - Limited Or No Connectivity
Aug 22, 2011Since last week, I have not been able to connect to the internet. I have had some trouble with this in the past when booting up, but usually I can manually select our wireless network on my own and it works fine. But since last week, I have not been able to connect at all. On the Wireless Connection Status, it showed Limited or No connectivity. I tried the repair button in the Wireless Network Connection Status Support tab, and that told me that I cannot connect because I could not renew my IP address.
View 7 Replies View RelatedCannot Renew IP Address / Limited Or No Connectivity
May 7, 2011Problem connecting to my girlfriends internet connection, just tried connecting for the first time and came across this limited or no connectivity message, using the cmd/renew IP address method did nothing and have no errors regarding any network adapters under the device manager.After doing the IPCONFIG /all function I get the following:
Windows IP configuration:
----Host name-----------: Steven-2720dfbd (This is my home host name so should have changed?)
---Primary Dns suffix-----:
---Mode Type------------: Unknown
---IP Routing Enabled----: No
---WINS Proxy Enabled---: No
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Router 2701hg - Cannot Renew IP Address
Nov 30, 2011I can connect wired but not wirelessly. I get limited or no connectivity. When I try to repair I get the message "cannot connect to dhcp server. request has timed out"
View 2 Replies View RelatedLimited Or No Connectivity - Can't Renew IP Address
Sep 20, 2011I have two computers - one that is a newer mac with no problems getting on to the wireless home network (from which I'm posting). The other is an older Dell desktop running XP and using a wireless card. I'm trying to setup the desktop on a new network (has worked on other home networks in the past) and I keep getting the "Limited or No Connectivity" and the network repair fails because it can't renew the IP address. In the IP config, I'm getting the default 169.254.x.y.
View 10 Replies View RelatedDesktop PC Running XP SP2 - Can't Renew IP Address
Oct 9, 2012I'm trying to go wireless with a desktop PC running Windows XP SP2. I've got a 2WIRE router which works fine when plugged into the computer via an ethernet cable. I purchased a Netgear N300 Wireless USB adapter and installed it - it seems to be working fine.
The trouble is that my wireless connection shows "limited or no connectivity," although the signal strength is "very good." When I try to repair the connection, it tells me that I could not be assigned an IP address.
At the moment I'm working via the Ethernet cable with no difficulty. why the wired connection works but the wireless (from the same router) doesn't, even though it should?
Unable To Renew IP / Limited And No Connectivity?
Apr 24, 2011So I have decided to register here and see where that gets meWhen I try to repair my wireless network connection, it gives me the error: "Unable to renew your IP address" accompanied by a little bubble that says something about limited or no connectivity. Other computers are working fine, so I doubt it's the modem.If I try to go into the cmd and type in "ipconfig/release" it says that it's already been released. Then when I type in "ipconfig/renew" it takes a while, but tells me something along the lines of "unable to connect to your DHCP server."I've tried the winsock fix and that hasn't done me any good. I've also tried: netsh winsock reset, netsh int ip reset reset.log, and netsh winsock reset catalog. All useless.[CODE]
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