Cisco Switching/Routing :: Catalyst 3560 G POE 48 Port Cannot Access Password Recovery
Nov 5, 2012
Im trying to access the switch to reset the password to factory defaults (please see switch output Astrix has removed customer identifying information for security purposes.) Each time I reboot the switch and try and access the password recover mode this same output below starts and im still not able to access the recovery area of the switch
cisco WS-C3560G-48PS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory.
Processor board ID FOC1133Y28Q
[Code].....
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Nov 5, 2012
Im trying to access the switch to reset the password to factory defaults (please see switch output Astrix has removed customer identifying information for security purposes.) Each time I reboot the switch and try and access the password recover mode this same output below starts and im still not able to access the recovery area of the switch
cisco WS-C3560G-48PS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory.
Processor board ID FOC1133Y28Q
Last reset from power-on
1 Virtual Ethernet interface
52 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
[code]....
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Dec 21, 2011
Following procedures get to the switch: dir flash and get the following.....unable to stat flash//: no such device
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Jul 10, 2012
I have a pair of 3560's configured with dot1q trunks between them carrying a number of VLANs.
Once deployed there will be a requirement for these physical trunks to be disconnected from time to time. Knowing that this is inevitable I am trying to minimise the period of time for the trunks to recover once the physical connectivity is reinstated.
All of the VLANs on the switches are configured for Spanning Tree Rapid PVST. Current time for the trunks/VLANs to come up is around the 4 second mark.
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Oct 21, 2012
I've just installed 2 of these in my workplace on a PLC network.I'm now looking to set one of the ports up as my diagnostic port and would like to be able to mirror any of the other ports to this port.I believe it is called SPAN on Cisco switches.The only reference I can find to it is configuring via Telnet which I haven't got a clue about.On my old Wiedmuller switches it was just a few clicks away.
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Apr 10, 2012
Assume I had Catalyst 3560X/3750X with 24 ports. The partnumber is WS-C3560X-24P-LI would like to how is the numbering defined if the switches have a C3KX-NM-10G installed with 4 SFP-GE-L.
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Aug 12, 2012
I have 5 SVIs configured for VLAN Interfaces 121-125 for my vSphere environment.
All VMs can ping IPs on all the VLANs (VMs on VLAN 124 can ping VMs on VLAN121)
All VMs, except those on VLAN 124, can access the Internet or even ping my router IP.
If I change one of the VLAN 124 VMs to use a different VLAN, and update the addressing appropriately, it can access the Internet.
The problem is exhibited with Windows and Linux VMs. So, I believe something in my switch setup is the problem with VLAN 124 in particular.
If i do a show vlan brief, VLAN 124 is listed.
If I do a show ip int brief, VLAN 124 is listed as upup. I also tried to shut o shut the VLAN 124 interface.
Only one specific VLAN has connectivity problems?
My topology is Catalyst 3560 to home router to Internet.
Here is my IOS image: c3560-ipservicesk9-mz.122-55.SE6.bin
Here is my show run output:
3560_02#sh run
Building configuration...
[Code].....
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Aug 23, 2012
My configuration:
radius-server host 10.138.44.57 auth-port 1645 acct-port 1646 key 7 ******
!
aaa new-model
!
aaa authentication dot1x default group radius local
[code]....
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Jan 31, 2012
I have the wrong code on the device. I can get to the switch: prompt. The manual say to connect a PC to the management port. But it does not come up. x modem does not seem to work. I found some commands :
Examples : This example shows how to clear the Ethernet management port statistics: switch: mgmt_clr
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May 23, 2013
I'm trying to do password recovery on a Catalyst 3850 switch..I've read the section in this: url...where it says that I need to have physical access to the switch (I do), and that I reset the password if I issue a break command and interrupt the boot procedure. I've tried to do that... it gives me the "switch:" prompt, so I think I've interrupted the boot procedure successfully, but, what do I do next?I've successfully done recoveries on Catalyst 2950s, 3550s & 3560s, but the procedure for this one, if I'm reading the link above right, sounds like it's completely different.
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Sep 17, 2012
I am trying to use the password recovery for an NME-16 and am having trouble. I am unable to look at my files in dir to so I can rename them. I can get the switch to bypass the config and come with the switch: prompt, but can not do anything more. I am trying the password recovery guide, but cant get to the text file to rename. I am using a 2811 router.
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Sep 24, 2012
I want to recover the password or set the cisco 3750 to the default password, as forget it
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Jan 1, 2012
I can see the console on the router. (Using the USB console connected to a Macintosh.) I was configuring the router though this console connection, and I created a new user (priv level 15) and removed the default 'cisco' user. So I'm stuck at the username/password login prompt now.
I decided to do the password recovery procedure (via the cisco doc I found etc), but I cannot break into ROMMON during the boot process. I'm not sure if that's because my Mac isn't sending the break, or what.
The pw recovery doc says you can "remove flash" if you can't break into the boot sequence. However, I cannot find any instructions on how to remove the flash. I've opened the router, and I see one very small daughter card on the main board that I think is the flash, but I'm not about to start arbitrarly prying parts off.
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Feb 19, 2013
Currently Being Moderated password recovery
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Apr 7, 2012
i just wanna know if it's possible to perform a router password recovery using the reload command and then issue the break sequence instead of doing an off/on on the power switch. i often find in the docs to use the latter.also, is there a way to retain the startup-config on a router when we re-enable the password recovery functionality (no service password-recovery). i've just tried this on one of our 877 and when i hit the break sequence, it went back to factory default setting.
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May 20, 2010
I understand that the password has to be changed the first time we login to Cisco 3945 router but i failed to do that and its not allowing me to connect using default username/password.
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May 16, 2010
I have one CISCO 6509 Switch in my store. I tired to login in that switch but couldnt.. Once it's booted it's asking me: rd: . Find the attachment. I recover the password by changing confreg value but that also failed.
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Feb 18, 2013
I need to break into a 2901 router to recover the passwords. Cisco's methodology for password recovery on 2900 seriews routerssays to remove the compact flash card and reboot into RMON. There is no external compact flash card on a 2901. Is there acompact flash card inside the box? Or can you use the older method of rebooting and then hitting ctl+break to boot into RMON?
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Oct 5, 2011
I have a major problem with our core 2801 router. In summary it appears that a staff member disabled password recovery, deleted the IOS and rebooted. Net result is no Rommon and no IOS on the flash. I've read that the Conf-Reg will be reset if I remove the NVRAM but I cannot identify it on the board. If I can get to Rommon I can recover. Currently I don't have Flash reader to restore to flash.
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Dec 5, 2012
I'm using the ctrl-break sequence in hyperterminal during the the initial boot, and it's hanging.
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Jul 14, 2012
i read alot about password recovery , but when i apply it to cisco 7604 it fails ?i went to rommon mode and typed# confreg 0x2142 then i typed reset when the router startup it request a password form me ,i can enter the user mode , and when i type sh ver command i note that the config resgitser is 0x2102 , not 0x2142 !!!!
i could enter the privilage mode !!!! and seems no thing changed ! does this router has a specific password recovery procedure ? which differes than the classic procedure?
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Oct 31, 2011
I have catalys 4507 with TWO supervisor V.I flowed this procedure : url...
after the reset normaly i can change the password and i check the confreg is 0X2142 but it still ask to enter the possword should i remove 1 supervisor and do the procedure or i must let the two spuervisor?
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Oct 25, 2012
I'm new to networking and was looking for some assistance. First off im using packet tracer to diagram my senario as I will be receiving my equipment next week to deploy.
Hardware to be used:
1. 2 catalyst 3560 switches
2. all connect to a sonic wall router
I have two companies that work in the same office space. I need to keep these companies seperate on their own vlan. They will however need to share the phone system.(Packet tracer file uploaded to give those who have the time to see what I put together.) [code]
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Sep 7, 2012
I have 2 x 6513 each with dual supervisor 720, and need to recover the enable password, is there a better method than removing one supervisor, disabling redundancy and performing password recovery on the single active supervisor module , before re-inserting the second supervisor and re-enabling SSO/RPR on the still active module.
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Feb 9, 2012
I enabled the "no service password-recovery" command on my C2960 switch. All seems to work as discribed. Only issue I have is --- which show command is used to reveal if the password-recovery feature is enabled of disabled as the command doesn't show up in the running config after you enable it ?
NOTE: The command does show up in the C2960 switch in config t mode (unlike the IOS router 2800 series), but doesn't show up in the running-config after you enable or disable it.
On the 2800 series routers (latest IOS) in config t mode the command does not show up but if you type "no service passowrd-recovery" the command function correctly and it does list it in the running configuration.
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Aug 8, 2012
the following information before:
Switch: WS-C3750X-48P (Stack with 2 Members)
IOS: 12.2(58)SE2
Lic: IPBASEK9
[Code]....
Since i added another Member to the Stack, i'm facing the following problem: When i login with my tacacs user account, i will not be asked for the password. The same thing is for the tacacs account of my colleague, after entering the username he is logged in. It seems for me, that the passwords are cached only for this Switch.
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Oct 28, 2012
We have a IP-phone system connected to port 1 on a 3560 switch, the phone system tags traffic with dscp. The switch uplink is on port 24.
Is this configuration correct:
interface 1:
auto qos trust
interface 24:
priority-queue out
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Feb 7, 2012
Does the Catalyst 3560 support GRE ?
I know that Catalyst 3750X support GRE ,but Catalyst 3750X cannot work in hardware it.
Does the Catalyst 3560 cannot work in hardware too?
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Oct 28, 2012
I'm currently configuring per port policing on a 3560 and want to limit inbound traffic to 750mbit:
mls qos
access-list 1 permit any
class SET_IF
match access-group 1
policy-map SET_QOS
class SET_IF
[code].....
When I test the setup with iperf I always get different results when I change the nummber of parallel connections.Isn't there a way to limit the throughput regardless of the number of conns (INGRESS!) like with srr-queue bandwith limit?
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Nov 29, 2012
We have observed increase of CPU utilization of 50% after upgrade from 15.0(1)SE3 to 15.0(2).The SDM template is "desktop default" template.The increase of CPU utilization in Switches with LAN Base after upgrade is about 10%.
How to find the cause for the 50% increase ?This is command is the output of 15.0(2). The calculated sum for 5min process-utilization is 21% plus 1% interrupt is 22 %. Where is the rest ?
switch#sh proc cpu sorted 5min | exc 0.00
CPU utilization for five seconds: 30%/1%; one minute: 29%; five minutes: 28%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
169 135084171 33273787 4059 9.92% 8.94% 8.73% 0 Hulc LED Process
83 80075989 13546109 5911 5.60% 5.39% 5.38% 0 RedEarth Tx Mana
[code].....
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Aug 11, 2012
I'm having an issue with 2 of my 3560s which are not booting. The last thing I did on both switches before it hangs was:
>write erase
>reload
restarted as normal
[Code]....
I've tried powering-off the switch and pressing the Mode button and power on. I got to swtch: mode switch:reset
It restarted past the POST but just hang halfway at the same bootp-up process as shown on the attached. The SYST LED is Green color when it hangs.
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Jan 25, 2012
I am testing 2960 24 S with storm-control and Errdisable Port timer interval 60s , connected HUB on fa0/17 to make traffic / loop.After Strom Control detection the interface goes down thats ok after 60s they will try to recover the interface and going up although the loop is still there.For my understanding if the interface detect still a loop on that interface they will disable the port again for 60s and will check again. [code]
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Feb 25, 2013
We have two catalyst 3560 switches running c3560-ipbasek9-mz.122-58.SE2.bin They are connected using etherchannel using gi 0/21 - 24 interfaces.
on 3560-1 switch, there isn't any ip-default gateway or ip route configured. It only have 1 interface vlan configured.
on 3560-2 switch, there is ip default gateway configured along with 1 interface vlan.
What i dont understand here is that, i can reach out to other subnets from 3560-1 switch in which the routing is not enabled?
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