Cisco Command

Hi
What is the following command impact on router ?
ip telnet source-interface Loopback0
thanks
Arun

HI Arun, [Pls RATE all Informative POST]
Refer useful link below:
http://www.ciscopress.com/articles/article.asp?p=27137
The document explains the usage of Loopback0 Interface as SOURCE for various Router Management Activities [Includes ip telnet source-interface Loopback0 - explanantion]
Hope I am Informative.
Pls RATE all Informative POST
Best Regards,
Guru Prasad R

Similar Messages

Which cisco command on router can show me specific hosts which have dhcp reserved IPs

how can i get that which hosts of the network have reserved dhcp IPs as i know that dhcp reservation to be created when mac address will be assigned.
so, which cisco command on router can show me specific hosts which have dhcp reserved IPs.thanks

As said by Leo, the DHCP bindings will show the corresponding MAC addresses.
Unless you have a list of all MAC addresses somewhere (which most people tend not to) then you can use the ARP cache combined with the CAM tables to trace which ports relate to which MAC address to get more information on the host if you need it.

String cisco commands together (sh via ssh)

i need to update several cisco devices (all the same) and want to do it in an automated fasion.
i want to use ssh to login, enable to admin, then tftp get the image, write and be done with it...
can you string cisco ios commands (and echo pass | enable for that matter) under the cisco shell interpreter???
ie:
ssh admin@cisco cmd1; cmd2; cmd3; cmd4; cmd5
ultimately, ssh admin@cisco echo pass | enable; archive download tftp://path/file; write; sync; reboot
possible?

You can do Cisco IOS Scripting with Tcl. More details are available in the following links.
http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801a75a7.html

Cisco call manager express : desactivate silencious mode in Ip telephony

Hello All,
I configured cisco call manager and it works well. I would like now not to allow users to make their phone in silencious mode by using down volum. May I do it with cisco commands lines? Thanks in advance for any help.
PS : I have a Cisco IOS Software, C2951 Software (C2951-UNIVERSALK9-M), Version 15.2(3)T1, REL
EASE SOFTWARE (fc1)
Regards.

Hi Carl Messer ,
just one doubt, in fast track method can we give any phone model with any protocol(sccp,sip) type as a reference?
for example for 8831 sip phone reference phone type given is 7937 which is a SCCP phone so my doubt if i gave 7975 sccp will it work?
from above thread:
voice register pool-type 8831
xml-config maxNumCalls 2
xml-config busyTrigger 1
xml-config custom sshAccess 0
num-lines 2
description Cisco IP Phone 8831
reference-pooltype 7937
voice register pool 1
busy-trigger-per-button 1
id mac ####.####.####
type 8831
number 1 dn 1
presence call-list
dtmf-relay rtp-nte
description 233
codec g711ulaw
no vad
Rgds
Vigeesh

Cisco AP1121G Workgroup Bridge Problem

Hello,
For reference I have attached the following:
Network Diagram
Ping Results Table
Configurations for 1811 router, ap1121g root access point, ap1121g wgb.
I am seeking assistance with the following problem.
Referring to the attached network diagram, I cannot communicate past the ap1121g-wgb in either direction.
Also attached is a result table of ping attempts through the ap1121wgb from each side.
I don't have a problem with the wireless connections. The ap1121g's associate ok.
Based on the ping results the problem appears to be in the ap1121g-wgb configuration, but I have run out of ideas.
The following two cisco documents have been my main reference, besides the cisco command lookup site.
http://www.cisco.com/en/US/customer/products/hw/wireless/ps430/products_configuration_example09186a00805b9b87.shtml
http://www.cisco.com/en/US/docs/wireless/access_point/12.4_21a_JA1/configuration/guide/scg12421aJA1-chap19-wgb-standby.pdf
Any insight will be greatly appreciated.
Thanks...

Robert,
Going back to your original post and looking through the example given in the first URL, I spotted a few lines in the example configurations which apply to older revisions of code, but not newer AP code, so they may be misleading. Based on the parameter availability of station-role workgroup-bridge in your last message, would you be wiling to try the following?
Reset both 1121 APs to factory default configuration (#write erase -- do not save config to startup if prompted)
Give each AP an IP address on BVI1 so that both APs are in the same subnet
Apply the following configuration to the infrastrucuture (root) AP:
dot11 ssid WGB-SSID
authentication open
interface dot11radio 0
ssid WGB-SSID
station-role root
no shutdown
Apply the following configuration to the workgroup-bridge (client) AP:
dot11 ssid WGB-SSID
authentication open
interface dot11radio 0
ssid WGB-SSID
station-role workgroup-bridge
no shutdown
The intended goal with this exercise is to get rid of all config and to try only basic required elements of a WGB configuration, starting with fresh factory defaults. Let's see if it will work for you as a bare-bones setup and then you can add other configuration like encryption and ACLs back in later.
Justin

How to create custom GUI interface for Cisco router?

Hello,
I am working on a Cisco solution and I have my router configured for the solution I need. However, if a non-cisco person needs to use my solution then I think he will need a GUI interface which will have few "buttons" which when clicked will run some Cisco commands on Cisco router to make it work. Is there a way to design such GUI interface which is compatible with Cisco routers? I know Cisco has SDM, but that is too involved and detailed, which is useful only for people who know atleast a little bit about Cisco. Here I am looking at crowd who will have 0 knowledge of Cisco.
Please let me know if something like this can be done. If yes, how and how easily?
Thank you.

There are lots of ways to do this - you can use SNMP or even HTTP to push or pull commands from Cisco devices. How easy it is to create a GUI depends on your programming skills. I would guess a simple web page triggering backend scripts would be the easiest way to do this.

Redundant Cisco Switches

diannewaters wrote:Comparing the SG300-28 and the SG500-28 seems like a good way to start although I'm really confused about how the fail-over works still.The SG300 line is not stackable, where the SG500 line is stackable (sort of) via a 5Gb/s cross over cable that plugs into a specific GBiC port on the front of the switch.If you want to protect from a single switch failure you want a stackable switch. In this case if your servers have dual network adapters you would plug each server nic into each switch. That way if either switch fails the server will still stay online. This works the same for the SG500 series and more expensive IOS based switches. On the 2960 and 3850 mentioned above, they have a dedicated high speed stacking connection, where the SG500 is limited to 5Gb/s switch on the stacking cable. For devices that only have a...

What's the budget?At the less costly end the SG300 or SG500 will fit the bill. These are small business style switches with a GUI management system although they do have a very similar command line interface to the more advanced switches I'm about to talk about...At the more costly end the 2960X-R will fit although they are not as feature rich as a 3850XR which has a full Layer 3 features and functionality. Both of these are managed via the Cisco command line. If you are not familiar with this then the learning curve will be steep. They are the best switches out there though with reliability, speed, throughput and features that are second to none.http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-x-series-switches/data_sheet.......

Cisco Prime LMS 4.1 - Monitoring events

Dear all
I have a problem to see the events in the Cisco Prime, for example when an event occurs (port-shutdown) in the switch I receive this information:
Event Source
DFM
Description
Cisco Command Monitoring -> Event Command Source: Command Line, Event Config Source: Running, Event Config Destination: Command Source
Event Category
Other
Fault Last Updated At
07-Mar-2013 16:57:40
Event_Description
InformAlarm
Component
192.168.10.5: Cisco Configuration Management Trap
I don't see the details of the port that was done, or other deatiled that give aditional information abut the event. I have configured the Cisco Prime in this way:
- Admin > Network > Notification and Action Settings > Event Sets : I have marked all the events
- Admin> Network > Notification and Action Settings>Fault - Email notification : My mail is configured , I received alarms by mail.
- Admin> Network > Notification and Action Settings>Fault Notification Group : is configured
Notification Group Name:
TestSW4
Device List:
192.168.10.7 ; 192.168.10.6 ; 192.168.10.5 ; 192.168.10.253 ;
Event Set:
All
Event Severity:
Critical ; Warning ; Informational ;
Event Status:
Active ;
Customer Identification:
The snmp was configured in the devices:
snmp-server system-shutdown
snmp-server enable traps
snmp-server community <community> RW
snmp-server host 192.168.10.x <community>
PLease your support or give some information to configure correctly the events and failures in cisco prime in order to see correctly

Hi,
This community is for collaboration. Pls post your question in the following community:
Home --> NetPro --> Network Infrastructure --> Network Management --> Discussions
Thanks,

Cisco 831 and "Can't get video from the camera."

I'm running a Cisco 831 router with ios 12.4(5a) installed. Every time I try to initiate a video chat with a computer going through the router, I get the "Can't get video..." error. It works fine with computers on my internal network and if I bypass the Cisco router and plug straight into my Cable modem.
I've covered every conceivable TCP/UDP port being open (per numerous pages re: port 5060, 5190, etc.) and have even gone as far as testing with "permit UDP any any" and "permit TCP any any" at the top of the rules. No luck.
I've been reading about the possibly needing to "unbind" SIP (port 5060). Is this something that a Cisco 831 router would require? The router doesn't seem to respond to any of the documented Cisco command re: VoIP and does not have any phone support that I'm aware of.
If anyone has any info that can help me get his up-and-running, I'd be much obliged.
Thanks,
Matheau

Hi Kcritchie,
It will most likely look like that. But in this case it should be on the UDP protocol.
The link looks useful (it takes a scroll down to see it for others looking)
If I do nat bindlist in my Alcatel I get this
Last login: Thu Jun 29 12:36:20 on console
Welcome to Darwin!
Ralph-G4:~ Ralph$ telnet 10.0.0.138
Trying 10.0.0.138...
Connected to speedtouch.johnshome.
Escape character is '^]'.
Username :
(Pic line drawing edited out here )
=>nat bindlist
Application Proto Port
ESP esp 1
FTP tcp 21
GRE gre 1
H323 tcp 1720
IKE udp 500
ILS tcp 389
ILS tcp 1002
IP6TO4 6to4 1
IRC tcp 6660-6670
JABBER tcp 5222
JABBER tcp 15222
PPTP tcp 1723
RAUDIO(PNA) tcp 7070
RTSP tcp 554
=>
On my device this is because the SIP binding on UDP port 5060 is unbound.
2:30 PM Thursday; June 29, 2006

Cisco IOS

Hi
I was wondering if there are any linksys routers available that come with the Cisco CLI IOS. I am in the market for a new router; my wrt54g has been having issues, and i'd like to buy one with the cisco command line. Please post if there is one available
Thank you
Shah

Yes, gv is right, only Cisco router's have Cisco IOS...There are no Linksys Routers available that come with the Cisco CLI IOS...

Clear command history

How can I clear or reset the Cisco command line history?

Adam
You can clear the command history buffer with an exec command. The history buffer size defaults to 10 but you can control the size. If you want to change the size permanently you use a command in line configuration mode: history size and if you want to change it only for your session you use this command in exec mode: term history size .
So if you want to clear or reset the history buffer I would do this:
term history size 0 (which empties the buffer)
term history size 10 (or whatever value it had been set to).
I tested it and it worked very well for me.
HTH
Rick

Connecting Cisco 2821 Router, Switch, and Cable Modem

Hey everyone,
I am currently in the Cisco Network Academy at my school and just finished CCNA 1. I have a few questions though.
I am purchasing new equipment and that equipment includes:
1-Cisco 2821 2-port Gigabit Router
1-Linksys SE3016 16-Port Gigabit Switch (unmanaged)
1-Cisco WAP4410n Wireless Access Point
1-Motorla SurfBoard Gigabit Cable Modem (no router built in-Just standalone Modem used with Comcast Xfinity High Speed Internet)
1-12U Network Rack (not enclosed)
I am confused on how I will connect the cable modem to the router and the router to the switch and the WAP so that I still have WiFi. Since the router only has 2 Ge Ports, how would I cable this up?
If my assumptions are correct, would I do the following set up?
Take the Cable Modem and run a Straight Thru to Port 1 of the Router.
Connect the Switch Port 1 to Port 2 of the Router using a Straight Thru cable (I believe I will most likely have to Subnet a network, won't I?).
Connect Switch Port 2 to WAP using Straight Thru Cable (so I still have WiFi in my home).
Connect all my computers and other devices to the Switch (this includes several PC's/Laptops, two printers that are ethernet, two TV's that are ethernet, an AppleTV and a Blue Ray Player that are both ethernet, and some Cisco Powerline Network Adapters).
Will that set up work?
Also, how would I configure the router to work with my cable modem AND act as a DHCP Server so that all of my devices get IP Addresses? I have the Cisco Command Guide Book, but it is confusing to me as of now.
Thanks!
Chris

A good start but a few points I would make.
If you set the clock manually, you may find it resets itself after a router reboot. I would look at pointing it at an NTP server:
#ntp server x.x.x.x
#clock timezone GMT (Assuming you are UK based)
Although not required, I would put a description on each of the interfaces as it may help identify them later if you are not physically in front of the Router.
#interface gi0/0
#description WAN
Same for LAN
You have set up your LAN subnet with a /16 subnet mask which is effectively 10.0.0.1 - 10.0.255.254. This is a large subnet allowing over 65k hosts which is not best practice on enterprise networks. It probably won't cause you any issues but I doubt you will have any more than 254 hosts so personally I would use a /24 subnet (255.255.255.0)
The only major thing missing is NAT which needs to be configured on the router to translate the LAN IP addresses from their 10.* private range to the Public IP address on the Gi0/0 WAN Interface.
Firstly you need to define the 'inside' and 'outside' NAT interfaces which is fairly self explanatory:
#interface gi0/0
#ip nat outside
#interface gi0/1
#ip nat inside
Gi0/0 is your outside interface because its facing the Outside world (i.e the internet) and Gi0/1 is your inside interface because its facing Inside your LAN.
Then you need to tell the router which addresses to translate against by first creating an access list:
#ip access-list standard LAN-Addresses
#permit 10.0.0.0 0.0.255.255
Finally you need to tell the router to start translating:
#ip nat inside source list LAN-Addresses interface gi0/0 overload
Oh, I have just noticed that you do not have a 'default route' configured. A router forwards packets by first looking up the destination IP address of the packet (i.e where its going) in it's own routing table. Obviously home routers are not going to have an entry for every Public IP subnet on the internet so they use something called a default route which effectively says 'If I cannot find an entry for this packet in my routing table, use the default route'.
As you are on DHCP and your IP address (and even default gateway) could change on your WAN interface, I would not bother with the next hop address in the default route but rather use the outgoing interface as below:
#ip route 0.0.0.0 0.0.0.0 gi0/0
Hope this helps!

F5 migration to Cisco Ace10

Hello
I've been given a F5 script that i need to apply to a Cisco Ace.
The F5 script looks like its doing some http redirects with some certain match criteria and i need to convert this to Cisco command structure.
I don't fully understand what the F5 script is trying to achieve in the first place having very limited F5 experience with irules, which makes it hard for me to migrate.
Do you know if there is a F5 to Ace conversion tool or a way of acheiving this
Thanks

Hi Siva,
Please can you tell me what this tool is called? I've asked my Cisco account manager and they do not know. I too want to migrated a f5 BIG-IP to a Cisco ACE.
Regards,

Boot bootldr, boot bootstrap and boot system command?

Hello All,
Could anyone please explain me what the boot bootldr and boot bootstrap are? And how do they different from the boot system command?
I did not understand the description of these commands in the Cisco command reference document.
Thanks a lot,
Nitass

Hi Nitass.
Boot system is used to specify the system image that loads at startup i.e the full IOS image that system will load.
boot bootldr command is used to specified a boot loader image which is an image with only booting featues and few limited commands, this image is like a safe mode for the system where we fall back on if system is unable to boot from main image.
bootstrap is the minimum software that is required to recongnize and run the hardware. It comes both in software and hardwares with the software.Like in cat 6K on Sup's is a special hardware with an image on it.
HTH,
-amit singh

Error: Selected disk does not exist (21) Module-SRE-700

Already tried everything that the recovery cisco commands, anyone have idea how to solve the problem of the print shown in print?
Initializing memory #2. Please wait...
This may take a minute....
Serial ATA Port 0 : Hitachi HTE545050B9A300
DDR Memory 4096 MB detected
Intel(R) Core(TM)2 Solo CPU    L3400 @ 1.86GHz
BIOS SM 3.52.8, BIOS Build date: 02/08/2011
System now booting...
Please wait...
Please press P to select Primary Boot Loader ...
          or S to select Secondary Boot Loader ...
          or wait to boot from default configuration ...
Now booting from primary boot loader....
Authenticating boot loader....
Primary Boot Loader Authenticated - booting....
ServicesEngine boot-loader> install_key waas-accelerator-4.4.5c.4-k9.bin
Keyfile Size 202814577 over limit 32768 will not burn into flash
ServicesEngine boot-loader> verify
Loading disk:/bzImage ... Unable to load image
Error: Selected disk does not exist (21)
Unable to boot image
Unrecognized command
ServicesEngine boot-loader>
#service-module sm 1/0 session
Trying 172.20.245.1, 2067 ... Open
Please wait...
Please press P to select Primary Boot Loader ...
          or S to select Secondary Boot Loader ...
          or wait to boot from default configuration ...
Now booting from primary boot loader....
Authenticating boot loader....
Primary Boot Loader Authenticated - booting....
Please enter '***' to change boot configuration:
Trying to reset Service Module SM1/0.
May 7 11:27:33.055: %SRE_SM-6-STATE_CHANGE: SM1/0 changing state from SERVICE_MODULE_STATE_ERRQ to SERVICE_MODULE_STATE_SHDN
Initializing memory #1. Please wait...
Initializing memory #2. Please wait...
This may take a minute....
Serial ATA Port 0 : Hitachi HTE545050B9A300
DDR Memory 4096 MB detected
Intel(R) Core(TM)2 Solo CPU    L3400 @ 1.86GHz
BIOS SM 3.52.8, BIOS Build date: 02/08/2011
System now booting...
Please wait...
Please press P to select Primary Boot Loader ...
          or S to select Secondary Boot Loader ...
          or wait to boot from default configuration ...
Now booting from primary boot loader....
Authenticating boot loader....
Primary Boot Loader Authenticated - booting....
Please enter '***' to change boot configuration:
Detect and Initialize network device
Backup current platform configurations....
SRE step 1 - SM registration...
Finding (hd1,3)/296e03bc-3236-4a68-a178-688e56400a1e, failed
Local install not supported
Response - no installation needed (len: 422)
SRE Installation Not Needed
Restoring orignial configuration...
Updating flash with bootloader configuration.
Please wait ................... done.
May 7 11:29:03.331: %SM_INSTALL-6-INST_RBIP: SM1/0 received msg: RBIP Registration RequestLoading disk:/bzImage ... Unable to load image
Error: Selected disk does not exist (21)
Unable to boot image
þ
Initializing memory #1. Please wait...
Initializing memory #2. Please wait...
This may take a minute....
Serial ATA Port 0 : Hitachi HTE545050B9A300
DDR Memory 4096 MB detected
Intel(R) Core(TM)2 Solo CPU    L3400 @ 1.86GHz
BIOS SM 3.52.8, BIOS Build date: 02/08/2011
System now booting...
Please wait...
Please press P to select Primary Boot Loader ...
          or S to select Secondary Boot Loader ...
          or wait to boot from default configuration ...
Now booting from primary boot loader....
Authenticating boot loader....
Primary Boot Loader Authenticated - booting....
Please enter '***' to change boot configuration:
Detect and Initialize network device
Backup current platform configurations....
SRE step 1 - SM registration...
Finding (hd1,3)/296e03bc-3236-4a68-a178-688e56400a1e, failed
Local install not supported
Response - no installation needed (len: 422)
SRE Installation Not Needed
Restoring orignial configuration...
Updating flash with bootloader configuration.
Please wait ................... done.
May 7 11:30:31.339: %SM_INSTALL-6-INST_RBIP: SM1/0 received msg: RBIP Registration RequestLoading disk:/bzImage ... Unable to load image
Error: Selected disk does not exist (21)
Unable to boot image
ú
Initializing memory #1. Please wait...
Initializing memory #2. Please wait...
This may take a minute....
Serial ATA Port 0 : Hitachi HTE545050B9A300
DDR Memory 4096 MB detected
Intel(R) Core(TM)2 Solo CPU    L3400 @ 1.86GHz
BIOS SM 3.52.8, BIOS Build date: 02/08/2011
System now booting...
Please wait...
Please press P to select Primary Boot Loader ...
          or S to select Secondary Boot Loader ...
          or wait to boot from default configuration ...

Hi,
Opened a tac and managed to get the resolution of the problem. For those with the same problem reported by me above just follow the procedure below:
1. uninstall existing SRE-V software
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/sre_v/1.5/user/guide/software.html#wp1055364
2. run sm-hw-util to set sata mode to IDE
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/sre_v/1.5/user/guide/software.html#wp1091438
3. configure a static, 32bit route to point the service module IP address to the SM slot/0 interface
ip route 255.255.255.255 SM slot/0
4. install WAAS:
http://www.cisco.com/en/US/docs/app_ntwk_services/waas/waas/v421/module/installation/guide/wssmcfg.html#wp47040
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/sre_v/1.5/user/guide/software.html#wp1091438

Cisco Command

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