Cisco LAN :: 2651XM - Clear Entry From Configuration
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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Sep 26, 2012
I am trying to split traffic entering from the web for servers so everything goes over the ADSL link but time sensitive information such as Sharepoint (TCP80) go direct over the ESHDSL link, now the problem is traffic that enters through the ESHDSL hits the server, the server replies out of its default gateway which is the ADSL which doesnt know what to do since it does not have a NAT entry for its return path.
How can I make it so traffic can enter one router and exit the other?
The two routers have HSRP to provide fail over between the two, and BGP is setup so one BGP route goes ESHDSL-ADSL and the other ADSL-ESHDSL
The routers are a 877M-SEC-K9 and a 881-SEC-K9
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Mar 17, 2011
What is the procedure to delete the full startup-configuration of Cisco ASR 9010 with IOS-XR version 3.9.Tried the following but unable to do it:erase nvram, Commit Replce.
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Jun 5, 2011
I configure MHSRP at router Cisco 2901.
Router-B(config)#ip nat Stateful id 1Router-B(config-ipnat-snat)#redundancy SNAT1Router(config-ipnat-snat-red)#mapping-id 1 [code]...
when i write redundancy SNAT2 this error occur:
%Multi-redundancy entry not supported.
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Aug 14, 2012
I was working on a Cisco 2600 series router earlier today running IOS 12.4. I ran into an issue where I could not clear the startup-config. I tried:
router#erase startup-config
router#reload
router#erase nvram
router#reload
[code]....
each time IP addresses and things got cleared but other aspects did not which should have been. In the nvram there were several files:
Router#dir
Directory of nvram:/
126 -rw- 2143 <no date> startup-config
127 ---- 5 <no date> private-config
128 -rw- 2143 <no date> underlying-config
1 ---- 49 <no date> persistent-data
2 -rw- 0 <no date> ifIndex-table
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Aug 22, 2011
I have a 4500 Catalysts switched (4510 R ) that require the configuration to wiped back to factory default setting, How would i go about clearing the configuration on each module board
The chassis consists of
2 x Supervisor engines v WS-X4516 with Flash cards
4 x WS x84448 GB RJ45 48 port switches
1 x WS x4306 GB Switch Module
I also have a Catalyst 6500 that requires each module within the chassis to we wiped back to factory defaults
1 x Supervisor engine WS X 6k SUP 2- 2GE
1 x WS X6416 G-Bic 16 port GB Ethernet
4 X WS X 6148 CE-TX Base T GE 10/100/1000
1 x WS X6348 48 Port Inline Power Capable
And i have a Catalyst WS - C 6513 with the following Module card that need the configuration wiped to Factory defaults as well
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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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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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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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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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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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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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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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Jan 26, 2012
I have a requirement to NAT a spare address on the same subnet range as one of the firewall interface - however, because this is not allocated to a physical interface, there is no mac entry in the arp cache. the other end of the link from the firewall is connected to a router which has no idea how to reach this "virtual address" - again because there is no entry in the arp cache I have tried to put a static arp entry into the firewall but this doesn't appear to work either. Should I be using a mac address form a physical interface or can I create a dummy mac for this - If the router can't see the ip address, then users will not be able to target this address - so that the firewall can NAT to the real outside address.I have tried routes to null0 on the router and static arp entries on both devices but the user just times when trying to connect to 10.2.7.11 (nat to 10.2.32.11)
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Sep 5, 2012
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.
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Apr 29, 2011
an attacker have configured his PC with an static IP address but there is no such entry configured statically in switch, neither in DHCP snooping database.now when he want to generate traffic will switch block him? because there is no entry of his PC in the switch database.
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Sep 1, 2011
Is it possible to use a DNS entry in an extended ACL instead of an IP address range?
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Nov 16, 2011
I have a wap200 with a static ipaddress e.g. 192.168.249.205/24 (it is for management and is in vlan 1). Firmware of the wap is 2.0.4.0. No gw and no dns. (they are not necessary) I export the config . I have a second wap200 and import the config.bin to the new wap. ThenI like to change the static address and the name of the new wap, but - and this is the problem - it asks me to fill out the dns (the address for primary dns cannot be 0 and 255), but I absolutely don't want that because there is no dns or gw (management only). And if I fill it out I cannot go the the internet with the wap.
So I also have some other wap200 where I could import the config.bin and change the static ip without giving a dns (firmware 2.0.1.0). can I go back to a previous firmware (Europe) and where can I find it. Looked for it, but seeing only the last one 2.0.4.0 etsi.Or is there another method to skip the dns with a static ipaddress?
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Apr 30, 2012
When I try to add new MAC entrys to the WLC I get the following message unable to add mac entry to database, reached max size the problem is when I look at the stats there is only 386 MAC entry and the databse size was set to 1024 entry..The work around was to increase the size of the database to 2048.Is there any why to clean up the database?
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Mar 17, 2011
Using CCP I am trying to create a NAT entry for a range of ports. CCP window for a new NAT has only one entry for the port #. Is it possible to set uf port ranges in 877 router?
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Sep 13, 2011
In my environment, VPN users are connecting to corparate network via ASA 5540 and using 3.5.1, 4.8, 5.0 (32 bit) and 5.0(64 bit) VPN clients.After they have built VPN connection, they use program that generates traffic to a bradcast address (x.x.x.255) inside corparate network.
There is no problem with users who are using 3.5.1 and 5.0(64 bit), but 4.8 and 5.0 (32 bit) vpn clients can not add ARP entry to Windows machines ARP table. If i add ARP entry for x.x.x.255 on VPN interface, they can work.
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Jul 17, 2012
I am having peculiar issue in my setup. I recently replaced my ASA 5505 (8.2.1) with ASA 5510 (8.4.3). Everything works fine for a while suddenly I see some of the servers will not be reachable from the LAN all the servers gateway is my switch. If I check on my Dell switch the particular server's arp entry on the connected port is same as ASA physicall MAC. If im reverting to 5505 ASA everything goes smooth without any issue.
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Feb 24, 2011
Everytime I start one of my two Windows machines, I need to go to the control panel network adapter and enter the static IP address in the IPV4 properties. It is always blank after a shutdown.I have two machines that are networked for flight simming.One of the machines must have a static IP so I configured both static. Not sure if this has anything to do with my problem.
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May 3, 2012
I have a 5510 using AnyConnect VPN clients. I have a DNS name for my router to accept connections ie cisco.mydomain.com..I can ping the address by hostname from the clients machine ok but when the AnyConnect client opens it has my hostname ie (cisco.mydomain.com) but says "invalid host entry" I have to type in my IP address for it to connect.I have the hostname in my AnyConnectProfiles.xml.
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Dec 16, 2011
I'm configuring up aa ASA-5510, and I have several interfaces, some of which include:
interface Ethernet0/0.200
vlan 200
nameif SITECORP
security-level 90
ip address 10.1.4.1 255.255.254.0
!
[code]....
This definitely confuses me, because SITECORP has an inbound access-list of permit ip any any.
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Jan 22, 2012
We're replacing our older catalyst switches with new SG300 family switches and have a Microsoft NLB cluster for some services that run in multicast balancer mode.
We currently do L3 routing to the network with the cluster and have the following IOS configuration line in the specific switch to let users on other subnets to access the services.
arp 10.20.1.226 03bf.0a14.01e2 ARPA
How do we replicate this using the SG300 series in L3 mode? Whenever I try to add a manual ARP entry I get an error message that says that the MAC address is not a valid unicast address?
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Feb 19, 2013
through asa webvpn we need to provide our user remote destkop access; we would not use static rdp:// bookmarks for this accomplishmet as this would grow too much management effort with bookmarks updating. Our strategy would be to give users the "url entry" bar where they can input the resource name (example: "pc-flavio.mydomain") so the management effort is outplaced to the guys who manage the dns server. This stated, we noticed that most end-users would get in troubles because of the default-ing "url-protocol" is http://, so they don't change it to the correct rdp:// from the drop-down list and don't have the java-rdp applet started. There is a chance to admin the default protocol for URL Entry Functions? Our setup is asa 5510 ver 9.1, act/stb failover.
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