Cisco Switching/Routing :: 2691 - Unable To Reach Enable Mode By Console Connection
May 10, 2012
I have 2691 router with following config
line console 0
login local
password xty
When i remove the login local from the line console i connect to console port and press enter it shows router prompt 2691Router> but i am unable to go to enable mode.If i telnet to router then i put username and pw then it goes straight to enable mode.
vty config is
line vty 0 4
exec-timeout 600 0
logging synchronous
login local
length 500
transport input telnet ssh
escape-character 3
Any reasons why i can not go to enable mode by console?
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Jan 25, 2012
I use a C2950-24 switch, with IOS 12.1(22)EA12 release.When I try to connect in console mode, I can see the "Press RETURN to get started!" message, but it's not possible to me to have the # prompt.An "authorization failed" message is displayed. And the same message is prompted.
I try to recover password by following the recovery procedure. After the boot command, I never see the message "Continue with the configuration dialog? [yes/no]: ".
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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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Apr 6, 2012
Here is my Lab Setup: 2691 is BGP nei to R4 router and they are not directly connected. 2691 and R4 are in same AS 6500. 2691 Config---router ospf 1 network 3.3.3.3 0.0.0.0 area 0 . Its advertising its loop back IP to OSPF domain.
router bgp 6500
no synchronization
bgp log-neighbor-changes
neighbor 6.6.6.6 remote-as 6500
neighbor 6.6.6.6 update-source Loopback3
[code]...
R4 Router
router ospf 11
log-adjacency-changes
network 6.6.6.6 0.0.0.0 area 0
[ code].....
We can see that 2691 and R4 are BGP neis and 2691 has 200.1.x.x routes in its route table. My question is why from 2691 router i am unable to ping any route learned by BGP from R4?
2691Router# ping 50.1.1.0 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 50.1.1.0, timeout is 2 seconds:.....Success rate is 0 percent (0/5)2691Router#ping 200.1.2.0 [ code]...
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Mar 6, 2012
I have a problem for config switch sge2000. I can not console mode to get the prompt to type commands
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Jan 14, 2012
I am using radius authentication on C4507R+E with supervisor card 6L-E and IOS 15.0.2(SG1). It works perfectly but all radius messages appear in the console. Radius is very verbose, I can't use console because of the significant number of messages and I am worried about switches performances. I add that all debug commands are disabled.
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Apr 2, 2012
The Cisco 1921 router has two routed adapters. One is GE0/0 which I am using for my WAN interface. It is working properly. The 2nd interface is GE0/1 which is being used as my internal adapter. It is running NAT. When I attempt to reach the internet it fails while checking the exit interface. Here is the report.
AttributeValueRouter ModelCISCO1921/K9Image Namec1900-universalk9-mz.SPA.151-3.T.binIOS Version15.1(3)THostnameBulldog
Interface Details
AttributeValueInterfaceGigabitEthernet0/1IP address192.168.1.1DescriptionNOC Link Test Activity Summary
[Code].....
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Feb 18, 2012
I'm replacing our current router with an ASA 5510 running 8.4(3) and I'm having what I think are NAT issues.From the 192.168.0.0/24 subnet, I'm able to reach the outside world (via NAT/PAT) without any issues. However none of the internal subnets (e.g. 192.168.10.0/24) are able to. Packet-tracer shows no ACL issues.
Here's my config:
ASA Version 8.4(3)
!
hostname gw
domain-name internal.mycompany.com
enable password asdf encrypted
[code].....
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May 27, 2013
I have a multiple Offices in my location , all my external users are connecting my site using Cisco Client to site VPN and accessing my 2 sites , All users are able to access my 2nd office servers which are in 10.10.0.x pool , I have a different vlan in that same location with 10.10.35.x series and users are not able to access this pool servers , I am not much familiar with Routing . i am using ASA 5520 firewall .
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Aug 9, 2012
I have a 6513 with redundant sup 720-3B's that I cannot get onto. In short, one of the power supplies failed, it still passes traffic but I can't console or ssh to the box. Other than the two sup 720's, I have a 4 port 10gig card, a 16 port GBIC Card and an IDS module. I have tried removing the 10Gig, IDS and one of the sup's but still don't get anything on the console. I have rebooted the entire chassis and don't get anything on my console while booting. I have tried changing the speed of my terminal to every setting available incase someone has changed it at some stage but to no avail. I have tried swapping sup's, using only one at a time in the chassis but not getting anything. Is there anything else I can try to get onto this chassis? The power supply is a 3000w with a 32amp input. The failed power supply had tripped a switch, when i brought it back up, the power supply came out but the output failed LED is on. My #questions are, is there anything else I can do to try get onto the console, and is the power supply goosed when the RED LED is lit? I have reseated the power supply also but the same result.
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Jan 14, 2012
On my 2650 Router it just has only Telnet password.It has no enable mode password set.After reboot it is goes to prompt mode BB.I am unable to go to enable mode .how can i go back to enable mode on this router?
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Oct 31, 2012
My engineer onsite can't get into enable mode on his 2911 router. I've seen this before but I can't find out how I fixed it.
He gets an error saying : no password set
Here is the config:
Router#sh run
Building configuration...
Current configuration : 1784 bytes
!
[Code]....
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Sep 10, 2012
I have stack of 2960 S switches.I can console only from Master not from memember switches is this default behaviour?
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Dec 27, 2012
I have 2960 switch and i can't access it using my console cable .I can access other switches in my network ( 3560 & 2960 ) but i can't access only this switch.may be the console port in the switch damaged? or it's a bug ?? !!! although the switch is worked normally.
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Mar 25, 2012
My current production network is setup using VTP in Client mode, and I am looking to enable VTP Transparent so I can enable the extended VLANs. My main question would be, would enabling VTP Transparent on my 6509 affect all of the access switches it is connected to? And if so, would changing all of the access switches to VTP Transparent allow them to regain connectivity quickly with little downtime? Or is there another way that I should be handling this situation to enable the extended VLANs?
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Oct 23, 2012
I have a set-up with multiple C2960 and C3750 switches. All these devices are being managed remotely. So basically I login to C2901, which is used as a Terminal Server, and reverse SSH to the console of each device. That's - I have assigned an IP to each port of the terminal server so that I can SSH directly to the desired device through via the mapped IP.
Now, recently I had to restart couple of switches - one C2960 and C3750. I initiated the reboot via console connection remotely. I could see the device logs for some time and then the logs stopped and there was no reaction from the console irrespective of any command I tried to enter.
I tried resetting the line on the terminal server, but that didn't work.
Now when I try to SSH the IP mapped to console of that particular device - i dont get any login prompt and there is no effect on device after giving any command. Although i can see the logs on the console session - but cant do anything.
I have a second way of connecting the device via inband- management, and checked the device config found it correct. It is same as other devices which are working correctly.
Both C3750 and C2960 are behaving exactly same - can see logs on console but see effect of even pressing enter - not getting login prompt as well.
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Mar 12, 2012
I have a strange issue that I am having an issue figuring out. I am trying to login to the 1941 router through the console port. When I enter the username and password, which I just set, it fails. I am able to login under a different login but when I try to enter the enable mode the enable password doesn't work, which I just set as well. I can login with the TACACS+ login from a SSH session. Here is the line config:
line con 0
exec-timeout 15 0
logging synchronous
[Code].....
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Jun 13, 2012
I'm using Linksys WAG200G Wireless modem and connection mode is "Bridge Mode Only", in this mode I'm not getting the 192.168.1.1 setup console and Wifi facility.
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Jan 11, 2012
I not able to access cisco 2811 router (AC operated) through console port when I try to access it by selecting COM Port, but I able to access by selecting the TCP/IP option.
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Jun 11, 2013
I have two 3560s that i would like to upgrade. But first i would like to make -absolutely- sure i dont wind up in a situation where i have to roll back over a console connection.to the day i still cant understand why oh why someone removed (or chose not to implement it everywhere) tftpdnld from rommon ;)
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Dec 30, 2012
I configured the below config in Routers it is working good , but when i do the same in SWITCH-2960 , i am getting a problem not able to login to enable mode ... i am getting the basic login only ....
Error msg : % Error in Authentication.
Need to be configured at TAFE Network Devices: Code...
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Aug 13, 2012
Everytime the console port is plugged in, the alarm contacts (1-4) randomly assert (trigger) and then clear themselves in random orders. Nothing is plugged into the ALARM port and all Alarm setting are default. Below is the syslog message and Alarm Settings:
CGS2520-C#show env allSYSTEM TEMPERATURE is OKSystem Temperature Value: 45 Degree CelsiusPOWER SUPPLY 1A TEMPERATURE is OKPOWER SUPPLY 1B TEMPERATURE is DisabledPOWER SUPPLY 1A Temperature Value: 49 Degree
[Code]......
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Dec 17, 2011
I am working with a Catalyst 4503-E with a Sup7-E. I'm trying to enable Netflow, and I have read the following guides: Catalyst 4500 Series Switch SW Configuration Guide, Release IOS ...
I have also enabled Netflow in IOS 12.1/12.2 and figured the process was similar (It seems to be). CEF is enabled, and I have all the pre-reqs according to the document above, however, the flow commands don't exist, they simply say "command unrecognized". I have included my sh version below.
sh version (edited):
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.01.01.SG RELEASE SOFTWARE (fc1)
[Code].....
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Feb 16, 2012
So I have read about proper procedure involving the connection between a console cable and Hyper-terminal. I have also tried plugging into a network port to obtain an IP Address but nothing seems to work. When powering on the switch I see that it lights up, hear fans spin and assume it has booted properly. I'm using Hyperterminal on Windows Xp Pro SP3 and I've also tried minicom in Fedora.
And just FYI Hyperterminal was set to the proper:
Bits per second: 38400
Data bits: 8
Parity: None
Stop Bits: 1
Flow Control: None
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Dec 20, 2011
My 2691 Router has already 2 serial cards WIC-1DSU-T1 installed, When i install the 3rd serial card and reboot the router, it detects the 3rd card installed but 3rd card has no light.
When i do sh ver it shows 3 cards installed.
When i install this 3rd serial card to other Router then light shows on card and it works fine
So i am thinking if 2691 Router only supports 2 serial cards?
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Sep 5, 2012
We're starting to share video across our network and would like to setup multicast to conserve at least some of the bandwidth. We have a broad mix of equipment (A Catalyst 6509-E at the core, a combination for Cisco 2691 & 2811 routers, and a whole lot of Catalyst 3500, 3550, 3560 switches at a hundred locations. Where would I begin? Would I need to define routing for the multicast IP addresses (224.0.0.0)? Would I need to setup interfaces & IP networks where each multicast device is located like I would for a new IP subnet?
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Dec 3, 2011
On my 2691 Router i see the buffer leak due to syslog
2691Router# sh buffers leak
Header DataArea Pool Size Link Enc Flags Input Output User
650743C4 F200084 Small 0 0 0 0 None None Init
[Code].....
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Oct 5, 2008
I am trying normal password recovery for (cisco routers) for IAD 2400 but iam unable to get in rommon mode ?
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Mar 27, 2013
How can I enable Console port in 7206 vxr with NPE-G2 card installed, I need to use console from NPE G2 card.
The device turns on and status is also UP and I can also telnet to the device but I am not able to access the device through console port...
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Jun 19, 2012
I'm trying to get an IP_ADDR set on the management port in SWITCH: mode but for some reason the port seems disabled. PC shows connection unplugged. MGMT_INIT is not a valid command (not listed under '?' ). Bootloader version is 12.2(53R)SE2 FC1.
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Mar 11, 2012
I'm running into what seems a basic ip routing config problem with a Catalyst 3750 (IP Base) switch. I have several VLANS configured on the switch with IP routing enabled, and the switch is connected to the inside interace of a new ASA 5520 as follows:
ASA5520 IP (Default gateway): 192.168.1.1Switchport Gi1/0/1 is configured as a routed port, IP address 192.168.1.3 255.255.255.0Example VLAN is VLAN 100, IP address 192.168.100.1 255.255.252.0 From the switch CLI, I can ping all VLAN addresses, as well as the ASA5520, and the client laptop I'm testing with from VLAN 100.
From the client laptop on VLAN 100, I can ping all switch interface and VLAN addresses (inter-VLAN routing is working), including 192.168.1.3, but I CANNOT ping the default gateway at 192.168.1.1.
Here is the relevant configuration information on the 3750:
!
no aaa new-model
switch 1 provision ws-c3750x-24
system mtu routing 1500
[Code]....
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Dec 9, 2012
I have a cisco 2851 router as the edge router, I have a 3750G and a 3560G switch and configured intervlan routing with four vlans, also connected to the switches a four servers and one has active directory and a dns server.i am able to ping from all te servers fine from different vlans and the servers are able to ping the edge router. the problem I am having is with DNS, in the edge router i have configured the isp's dns server address in ip name-server and i am able to reach the outside world.
the problem im having is the servers are not able to reach the outside, do i need to do something in the edge router to forward it to the 3750g or do i have to add my isp's dns servers on the 3750g with ip name-server.
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Mar 3, 2012
I have this strange problem with my Macbook pro, when I connect it to my cisco 2940 8 port switch then I can reach my ISP (websites eg. google.com) in like 2 minuttes, then something is happening on my router, because suddenly I can´t reach my ISP
This is what I have found out so far:
1. when I lose connection to my ISP then I can only ping internal ip addresses eg. another computer in my network
2. if I renew my ip address on the Macbook then it works again in 2 minutts, then the same happens again. This is my network setup:
Router -> Switch 1 -> Switch 2
I also know that it is not the Macbook, because it have got a new motherboard, and it have been reinstalled
also if I use the Macbook on a other network then it works fine.
All my other computers ( windows and linux ) works fine, no problems.
To me it looks like it is a Nat and/or DNS problem, but I can´t fine out what it is.
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