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Wednesday, March 21, 2012

Factory Reset of CISCO 7911, 7906 and 794x IP phone



To perform a FACTORY RESET
Note: The phone must be on a DHCP-enabled network before you can perform these steps.

Step 1 Unplug the power cable from the phone and then plug it back in.
The phone begins its power up cycle.

Step 2 While the phone is powering up, and before the speaker button flashes on and off,
press and hold #.

Continue to hold # until each line button flashes on and off in sequence in amber.

Step 3 Release # and press 123456789*0# in sequence to do proper factory reset.

After you press these keys, the line buttons on the phone flash red and the phone goes through the factory reset process. The process will take time to reset. During factory reset do not power down the phone until it completes the factory reset process and the main screen appears.

If the process take more than 10 minutes then inform your vendor about this.

Factory reset will  erased or reset to following to its default value

•CTL file—Erased
•User configuration settings—Reset to default values
•Network configuration settings—Reset to default values
•Call histories—Erased
•Locale information—Reset to default values
•Phone application—Erased (phone recovers by loading the term11.default.loads file)

Reset CISCO IP phone 7911, 7906 and 794x series by using erase softkey

Erase from Settings menu
Type on the phone :

•Goto Menu then settings
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button


After Resets user and network configuration settings to their default values, deletes the CTL file from the phone, and restarts the phone.

Erase from Network configuration menu
Type on the phone :

•Goto Menu then settings then network configuration
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button


Resets network configuration settings to their default values and resets the phone. (This method causes DHCP reconfigure the IP address of the phone.)


Erase from Security configuration menu
Type on the phone :

•Goto Menu then settings then Security configuration
•then settings menu, PRESS **# ( to unlock the menu)
•PRESS more button
•PRESS erase button


Deletes the CTL file from the phone and restarts the phone

How to reset your cisco phone 7941g and 7911

 
 
Basic reset of your cisco phone (7941g and 7911) -
 
From any screen (but not when the phone is idle), press **#**.
 
Resets any user and network configuration changes that you have made but that the phone has not written to its Flash memory to previously saved settings, then restarts the phone and main screen will appear.
 
 

Tuesday, March 20, 2012

Cisco Router Configuration Commands

Set a console password to cisco
Router(config)#line con 0
Router(config-line)#login
Router(config-line)#password cisco


Set a telnet password
Router(config)#line vty 0 4
Router(config-line)#login
Router(config-line)#password cisco


Stop console timing out
Router(config)#line con 0
Router(config-line)#exec-timeout 0 0


Set the enable password to cisco
Router(config)#enable password cisco

Set the enable secret password to xyz.
This password overrides the enable password and is encypted within the config file
Router(config)#enable secret xyz

Enable an interface
Router(config-if)#no shutdown

To disable an interface
Router(config-if)#shutdown

Set the clock rate for a router with a DCE cable to 64K
Router(config-if)clock rate 64000

Disable CDP for the whole router
Router(config)#no cdp run

Enable CDP for he whole router
Router(config)#cdp run

Disable CDP on an interface
Router(config-if)#no cdp enable

Static route the remote network is 172.16.1.0, with a mask of 255.255.255.0, the next hop is 172.16.2.1, at a cost of 5 hops
Router(config)#ip route 172.16.1.0 255.255.255.0 172.16.2.1 5

VPN Creation---Commad line

VPN Creation
---------------------------------------------------------------------------------------------------

tunnel-group GROUPNAME type remote-access
tunnel-group GROUPNAME general-attributes
address-pool (outside) mypool
address-pool mypool
default-group-policy VPN
tunnel-group GROUPNAME ipsec-attributes
pre-shared-key KEY
isakmp ikev1-user-authentication none
-----------------------------------------------------------------------------------------------------


GROUPNAME is the name of group created for remote access
mypool is the name of ip pool created for VPN users
VPN is the policy created for the users
KEY is the pre shared key for VPN users

Cisco VPN Client: Reason 412 – The remote peer is no longer responding

The error: "Secure VPN connection terminated locally by the Client. Reason 412: The remote peer is no longer responding" means the software VPN Client detected that the VPN server is not responding anymore and deleted the connection. This is caused by several different reasons, for example:
  • The user is behind a firewall that is blocking ports UDP 4500/500 and/or ESP.
  • The VPN client is using connecting on TCP and the default TCP port 10000 for NATT is blocked.
  • The internet connection is not stable and some packets are not reaching the VPN concentrator/server or the replies from the server/concentrator aren’t getting to the client, hence the client thinks the server is no longer available.
  • The VPN client is behind a NAT device and the VPN Server doesn’t have NAT-T enabled. In this case the user will not be able to send or receive traffic at all. It will be able to connect but that’s all. After some time the software client deletes the VPN tunnel.
Suggested solutions:
  • If you are using wireless, try to connect with cable
  • Turn your firewall off, then test the connection to see whether the problem still occurs. If it doesn’t then you can turn your firewall back on, add exception rules for port 500, port 4500 and the ESP protocol in your firewall
  • Turn on NAT-T/TCP in your profile ( remember to unblock port 10000 in your firewall)
  • Edit your profile with your editor and change ForceKeepAlive=0 to 1

CISCO VPN-Error 442

- Press Windows and R key to open Run window, type in services.msc
- Stop the Cisco Systems … service
- Stop the Internet Connection Sharing (ICS) service
- Right click on ICS service and choose Properties. Then change Startup type to Disabled or Manual.
- Start Cisco Systems … service
- Done. Now create a VPN connection, error 442 no more !

Etisalat 3G configuration on CISCO Router

chat-script gsm "" "ATDT*98*2#" TIMEOUT 60 "CONNECT"
chat-script ETISALAT "" "ATDT*99*1#" TIMEOUT 60 "CONNECT"
!
!
!
interface Cellular0/1/0
ip address negotiated
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer in-band
dialer idle-timeout 2147483
dialer string gsm
dialer-group 1
async mode interactive
ppp chap hostname etisalat
ppp chap password 0 etisalat
ppp ipcp dns request
!
!
ip route 0.0.0.0 0.0.0.0 Cellular0/1/0
!
!
line 0/1/0
exec-timeout 0 0
password 7 1234512345
script dialer ETISALAT
logging synchronous
login
modem InOut
no exec
rxspeed 3600000
txspeed 384000



Important Note : After configuring the router just ping any public IP to get dialer connected.