Cisco LAN :: 2651XM Speed Boosted When The Router Is Changed
Jul 10, 2012
cisco 2561xm router with WIC1-adsl card and NM-16ESW switchIOS: c2600-ipbasek9-mz.124-23.bin ,I recently had to temporarily disconnect my above router for a few days and replace it with a cheap plastic home router and was embarrased to discover my adsl broadband speed shot up 45% with the cheap router. With the cisco 2651XM I always got a max download of 400kb/sec but with the cheap router I was getting 580kb/sec. Clearly something is wrong with my cisco config, I put this down to the mtu setting, which in the cheap router wasn't shown but set to auto. I've tried different mtu settings in the cisco router (including 'no mtu' but never get more than 400Kb/sec.My isp indicates optimum mtu is 1500 but that doesn't produce any speed increase.What can I do here to get the cisco router working to maximum speed?
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Feb 6, 2012
I pay for a 50mb service and reguarly check the download speed I was getting. I would always get between 45-50mb. However I went on holiday for a few days, and so I turned all the plugs off at the wall(something I never do) and since I got home im getting speed of around 20-25mb. I called the engineer out but he wasnt able to do anything because when he connected it to his laptop, he was getting speeds of 47mb. He said he didnt know why i was getting such a slow speed through my desktop, just said it must have something to do with my computer.
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Apr 17, 2012
I have Cisco 2651XM and currently running old IOS c2600-is-mz.123-26.bin (IP PLUS) which I used the NAT protocol. I was wondering can I use IP-BASE on this router and I am not sure if this feature set has NAT protocol.
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Apr 13, 2013
-cisco 2651xm router
-cisco 1760 router
I have a cisco 2651xm router here at home, and at another remote location I have a cisco 1760 router, both are connected to the internet via adsl (WIC1-ADSL card).The problem is that from home I can't connect to the snmp-service on the 1760 router. I'm using a PC that's on the LAN of the 2651XM router, the blockage is in the 2651XM router, because if I swap it for a cheap plastic domestic router I can get snmp data from the 1760 router, and this is without any port forwarding in the domestic router. What config do I need on the 2651XM router so it will pass this traffic?
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Feb 20, 2013
cisco 2651xm router
IOS: c2600-ipbasek9-mz.124-15.T14.bin
I have a 16 port hub (NM-16ESW) installed in this router. Is there a way to lock down this hub so that only whitelisted machines will be allowed to connect to its ports? ie: by mac address or some other type of permission method? How to be able to plug their computer into the hub and join the network unless their device has been ok'd first.
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Oct 31, 2011
Cisco 2651xm router
IOS: c2600-ipvoicek9-mz.124-15.T7.bin
Can a 2651XM router be configured as a PPTP VPN endpoint (client)? I ask because I want to connect this router to a professional vpn (privacy) service such as proxpn or mullvad or similar. If it can't, any vpn privacy services that cater for cisco-based vpn connection?
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Feb 21, 2012
We have a number of 2651XM with WIC-1ADSL. These are supplied by another company and we do not have access to the configs.We are told that the maximum througput from the ADSL WIC to the FastEthernet 0/1 is 2.5Mbps ( "it's a backplane issue" ), even though the ADSL speed reported by the router on the external interface is 8MbpsT
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Oct 2, 2012
cisco 2651XM router
IOS: c2600-adventerprisek9-mz.124-15.T8.bin
if I do #sh arp in the terminal with this router I see a rogue entry thus:
Internet 192.168.0.4 0 Incomplete ARPA
My whole LAN operates on 172.16.x.x/16, there are no 192.168.x.x devices connected. In the past I've had 192.x.x.x devices running but for a long time and the router has been restarted since then. I've tried several clear commands in the terminal but this entry is stuck there and I've also seen it in a wireshark scroll on a pc when monitoring the routers' adsl traffic - it shows up an an SNMP entry and I do use SNMP on my router, but that data goes to a 172.16.x.x. machine. How can I clean this entry out?
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Aug 4, 2012
We have a Cisco 2651XM at the edge of our network, which routes our public IP block. This sits on a 100 Mbit/s ethernet pipe (full duplex) up in the datacenter. We are also running 100mb full duplex on our our side of the network. We have several public servers behind the router.
We have recently set-up a new Apple OS X Lion Server to serve a few websites. However, when downloading some files from the server the from a remote location, I noticed I can only get a maximum of 15 Mbit/s out of the connection.
When downloading a large file over HTTP (Apache) from this OS X Lion server from another server on the same internal network (behind the router), we get a full 100 Mbit/s transfer speed.
However, when we download the same file from anywhere on the internet (external side of the router), we can only manage to get 15 Mbit/s out of the transfer.
However, we also have other Linux & Windows servers that we can achieve a full 50 Mbit/s (our office connection speed) externally under the same network conditions.
So it also appears it's only for a single connection - not a limitation for the whole server. If I open two HTTP connections, I can get say 15 Mbit/s out of each transfer - totalling 30 Mbit/s... if that makes sense.
Update: I also notice slower ping latency when pinging from outside the network. Most of the servers reply in 15ms while the new OS X server usually takes over 40ms on average.
Router show ver:
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.2(11)YT2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
[Code].....
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Oct 12, 2012
cisco 2651XM router with WIC1 adsl card and NM-16ESW switch
IOS: c2600-ipbasek9-mz.124-23.bin
I use the following config to export traffic from the adsl card to a fasterthernet port so I can look at the adsl traffic in wireshark on a pc:router(config)#ip traffic-export profile my_rite router(conf-rite)#int FastEthernet 0/0 router(conf-rite)#bidirectional router(conf-rite)#mac-address abcd.efgh.ijkl (mac address of PC) router(conf-rite)#exit router(config)#int dialer0 router(config-if)#ip traffic-export apply my_rite this config works and I can see stuff going on in wireshark but it's only one way. This config only shows traffic going out from my adsl card, but no incoming. There is defintely traffic going both ways because everything about my adsl connection is working perfectly. I've tried using a different fastethernet port, even tried exporting to a different pc but all I see is outgoing ie: source is my public ip address but never as destination . I have bidirectional in the config but it still only shows outgoing. I even tried a different IOS (c2600-adventerprisek9-mz.124-15.T8.bin) but still it doesn't show incoming traffic. Could it be my ISP in some way hiding incoming traffic from view?
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Oct 3, 2012
-cisco 2651XM
-IOS: c2600-ipbasek9-mz.124-23.bin
I need to diable RDP packet inspection on this router but I can't find where I do that. I'm having troubele with audio on a sip line and I read here (bottom of page) url...that turning off RDP packet solved the problem. I've looked through the config and searched on google but couldn't find the asnwer. what is the command to turn off RDP packet inspection?
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Feb 19, 2012
our WAN is connected via L2WAN and using EIGRP to connect the sites. Currently there are 35 EIGRP neighbors over L2WAN and we are to install 15 more sites and will be connected to the same L2WAN. Some sites are still using Cisco 2651XM and we would like to know if it can still handle another 15 EIGRP neighbors. Some sites are 2800 and 2900 routers. And is there any other things to consider for EIGRP over L2WAN?
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Sep 23, 2012
I 'm trying to set up a home lab with a couple of 28XX and 2651XM series routers.I would like to simulate a frame-relay connection between HQ, Branch1 and Branch2 . All of them are conneced to a PSTN switch (2811 router) via T1 cross over cables. The connectivity is like this. [code] I have configured all the routers and FR switch with necessary configuration. However the link between HQ and Branch1 is not coming up. On both the routers I could see the line protocol is down.I have pasted the configuration below.[code]
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Feb 27, 2011
im unable to create pri-group under T1 controllers in 2651xm , I have 3 T1 VWIC controller cards [dual port], tried using differnt IOS [advance enterprise/IPVoice/SPservices], i can onyl see channel-group unter the controllers.
network-clock-particiapte slot 1
network-clock-participate wic 0
i havent added "isdn switch type", does addign these command enables the Pri-group, also wheni do sh inv, i see 3 pvdms, but no serail number,
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Jan 18, 2013
ISP is Virgin media with whom I have been with for a number of years.Recently discovered that the package I have which is only broadband ,speed at approx 10mb at a cost of £22.50 has been overtaken by new package of a wireless/ethernet hub, which replaces my old tin box router, with a min speed of 30mb for the same price!As soon as I raised the obvious query with Virgin the router was placed in the post to reach me by next Tuesday.
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Nov 30, 2011
I was talking to a friend today and he told me that a router changes the IP address you're given to by the ISP? So I checked with whatismyip.org and let's say with the router, it showed, 29.28.29.450, Then I took the router out and just used the modem and it showed as 29.28.29.449 If I were to use a different router, would it end with 450 again? Or an entirely different number, because the router is of a different brand? I'm assuming having a router is good for protection from malware, trojans and what not?
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Nov 22, 2011
I was wondering if i can enable url filtering on my 2691 or 2651XM routers so that if someone visits any website i can see that under router logs. right now i am using kiwi syslog that logs the router activities.
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Jul 21, 2012
I have a D-Link DIR-632 router flashed to DD-WRT.My original setup to my cable modem worked fine, i set up my wireless parameters via the DD-WRT software and everything was peachy until last week when my access (on the ISP end) was interrupted. Time Warner sent out a serviceman while I was at work and apparently he "Changed the IP Address".Now when I try to connect via my router, I get constant DNS errors (Windows 7 64 Pro).
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Jun 4, 2012
I have talktalk router,I need to change it with Belkin router,how I cant set up a connection? My self I have try but the connection is but router is not connect.
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Feb 27, 2011
router is a d link dsr 2460r. got a student at my house with big uni exam on friday
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Apr 20, 2012
My son decided to update our router firmware, together with this the password was changed. My computer which hosts the Internet connection works fine, all other laptops have now been connected successfully after simply changing the password. However my wifes laptop won't play ball. It is a Samsung R510, with Vista Home Premium OS. It worked fine prior to updating the firmware. I have been through the process of changing the password and have the correct security encryption in place, exactly the same process as with the other laptops.
It then says successfully connected, but shows in the bottom right of the screen, Unidentified network access local only and will not connect when the browser is opened. I have tried to diagnose but the usual windows prompt to reboot both modem and router has no effect. I have set it to private, as advised elsewhere, I have switched the firewall off and removed security software, all to no avail.
I tried the command prompt, then ipconfig/renew. An error occurred while renewing interface Wireless Connection: unable to contact your DHCP server. Request has timed out. No operation can be performed on Local Area Connection while it has media disconnected. Let me stress that no changes were made to the laptop at all, it is simply not connecting following the firmware update and password change. All other computers, and phones, 6 in total, are all working fine from simply changing the password.
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Feb 27, 2012
Changed from D-Link to Netgear router now only one of two computers cannot see the other. Error shows cannot connect to MSHOME network, need administrative approval. Computers are ethernet connected to the router. Have McAffe and both computers are "Trusted" Can do a search with XP and it shows the missing computer but unable to make a connection.
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Feb 17, 2012
I had to change from a WRT300N wireless router which died to a new E2500. I noticed that the speed my computers report that they are connected to the wireless network connection is now 144.5 mps, versus 270 mps with the WRT300N. There is no change in location of the devices or computers. The computers use a WUSB300N adapter.Is there a setting or setup that needs to be changed?
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Apr 9, 2012
recently I changed my ISP in hopes of getting better services for a cheaper price. The package I got claims that it has 24mbps download speed. I went on speedtest.net and compared the download speeds between my old ISP and the new one and it turns out it was the same; 7mbps. Either the technicians who came over to setup the new internet messed up or the WRT120N is having problems.
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Dec 28, 2010
I just discovered that my wireless download speeds are 5Mbps, compared to 16Mbps if my laptop is connected directly to the modem or wired through the router. Uploads are 2Mbps either way. I have a WRT54GS v.6 with firmware version v1.52.8 which I updated today, completed by setting factory default through the router webpage after I discovered this discrepancy. The firmware update did not improve the download speed appreciably, if at all.Should the wireless connection be that much slower than the wired connection through the router? If not, what sort of issues could I be having to account for this?
I did just replace my modem when I discovered I was having erratic speedtests and that corrected that problem. That is when I became aware of the wireless issue, so not sure how long that has been the case. I have Charter's 16/2 HSI, living in a sparsely populated area with solid internet service. There is no external nor internal interference on this 2.4Ghz band.
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Nov 6, 2011
I have a Arris DLS with 12 Mbps Download and when I Connect my laptop directly I get the same speed as 12 Mbps but when I do the speed test with my linksys I get only 5 Mbps. How to upgrade to the new WRT54GL or WRT54GS?
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May 21, 2011
I have a Linksys E3000, have had it successfully connected for three months now. Recently I attempted to connect my xbox 360 to the wifi and had issues connecting it. So I called ATT to obtain the PPPoE username and password, which they reluctantly gave me. Entered that into the xbox and still unable to connect, so I have given up on the xbox for the time being, I'll post that issue in a different forum. Where my issue is now is since contacting ATT the WPA2 password I set up for the router no longer works. I cannot access the router setup page, and I cannot add any new wifi devices. Although, all of the previously connected wifi devices are still connected to the router despite this issue. Is there anyway to make the old password work, or do I have to reset the router and start from scratch, and God forbid contact ATT again?
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Oct 20, 2011
I have a Netgear N600 Dual Band Gigabit Router and my roomate and I both have the wireless xbox and when we connect to xbox live and find a game on call of duty mw2 we lagg our butt off nd we tried changing the channel on the router but it still seems to lag.
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Jul 12, 2010
I have manually configured the E2000 and set the admin password. When I was trying to log back in, I could not. I reset and reconfigured and set the password again. I still could not log in using "admin" and the password I set up. I thought I was losing my mind. Just on a hunch, I used the SSID name instead of "admin", then entered the password that worked. I am able to login, but I need the username to be admin, not the SSID. Has anyine else had this issue? Any way to change the administrator name back to admin??
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Jun 7, 2012
I recently upgraded the firmware on my wrt 160N v3 and changed the wireless security to WPA2 Personal from WEP (I needed to do this to get higher speeds from a recently purchased wireless adapter). Now the router stops transmitting a signal intermittently for about a minute before coming back on line. The time between droppages is also not the same. Before the firmware upgrade (and the change in security settings) the router was rock solid. Where I can get the older version of the firmware (which seems to be more stable than the current version)?
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Oct 8, 2009
I have a wrt160n router set up at a friends house that i would connect my windows xp laptor to when i would go there. it always worked fine. i recently got a new laptop with vista 64 bit OS. i went to my friends today and connected via wireless for the first time. i expected to get prompted for the security key. instead it asked for the pin #. the pin number was something new i noticed when i replaced an older linksys with the new wrt160n so i had it in my notes. i entered the pin number and connected to the wireless router. but then my friend laptop could not connect and said it couldnt find the network. when i viewed the available networks, i noticed that the original network SSID had been changed to my vista laptop's computer name. i had to physically connect my laptop to the router and reconfigure the settings of the wireless network. then my friend was able to see the available network and automatically connect..
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Jan 3, 2012
Recently, I bought the E3200, and tried to configure its ports for gaming. Yet, whenever I would hit save settings, it would say my settings were saved, then return me to the settings page. But the settings would be blank. I tried downloading firmware from the website (which should say September 28), yet it still says I am running the firmware from September 1st, even after I applied the upgrade and followed through with the 50 second reboot process.
So, I guess my final question for any tech savvy person out there is "What is wrong with my router/firmware?" I am running the browser config in the most recent Firefox on the same MacBook I used to install the router, and haven't changed any settings other than the SSID and password.
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Jun 6, 2012
I bought E900, accessed setup thru 192.168.1.1, upgraded its firmware.. then changed router's IP, it reboots, then went blank, I cannot access the setup page anymore?
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