Cisco device RADIUS configuration with Server 2008R2

 Cisco device RADIUS configuration with Server 2008R2   OS : Windows 2008 R2 Standard. 4G RAM Window server is joined as domain server. IP 192.168.1.100…

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Expect script for SSH login network a device

Objective  : Verify 100 Nortel IP phone SSH login. IP range : 10.10.10.11 ~ 254 SSH  credential =  login / pwd = admin / ipb@l@nce…

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How to configure netflow on Cisco devices

Here is step to configure Netflow on Cisco switches or Router   Step 1: Enabling NetFlow Cisco(config-if)# ip flow-export version 5 or 9   *…

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Setup WPA2 on Cisco Aironet AP 1240 series

Here is brief information about wireless security and encryption methods. Also, sample configuration of how to setup WPA2 on Cisco Aironet AP 1240 series  …

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Tracking applied commands from Cisco router and switch

Here is few ways of tracking applied commands from Cisco router and switch. Yup, time to time we need to track who did what, but…

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Cisco ACS 5.x / CSACS1121 quick start quide

1. Install System Certificate from "System Administration / Configuration / Local Server Certificates / Local Certificates"; Each ACS system has a self-signed certificate which is…

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DHCP Troubleshooting Tips

Tweet Create Extended Access-list 120 access-list 120 permit ip host 0.0.0.0 host 255.255.255.255 access-list 120 permit udp host host eq 67 access-list 120 permit udp…

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Why WinSCP is getting an error to Cisco devices?

Tweet Error message "Error skipping startup message. Your shell is probably incompatible with the application (Bash is recommended)" Why? Cisco IOS is differnet OS/file system…

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Can I change SFP uplink speed on Catalyst 3750?

See below article.   http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml#config1

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When Cisco IOS upgrading, get !OOOO!OOOO!

Tweet When I was upgrading Cisco switch IOS using generic TFTP tool, I get below characters on progress bar. Cisco_IOS# copy tftp flash Address or…

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Cisco Catalyst 6500 troubleshooting – 720(Cold) why?

Tweet Recently, we had bad a supervisor card( WS-sup720-3B) and replaced it. Status said "Supervisor Engine 720 (Cold)" why? It should be (hot)     …

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When you get %Error opening tftp://255.255.255.255/~

Tweet When you get below error messages, do follow steps to disable the service.       %Error opening tftp://255.255.255.255/network-confg (Socket error)     %Error opening tftp://255.255.255.255/cisconet.cfg…

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