Wednesday, 5 August 2020

SNMPv3 config on Cisco routers/Switches

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    1) Create an access-list to allow SNMP source servers. access-list 10 permit 10.10.10.10 access-list 10 permit 10.10.10.11 access-list 1...
Monday, 3 August 2020

Enable Password vs Enable Secret command on cisco routers/switches

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We all know that enable password is used to change from user mode to priviledge mode. Enable password command will configure the password in...
Thursday, 18 June 2020

uRPF and its modes : Strict vs Loose

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Unicast Reverse Path Forwarding (Unicast RPF) Is a security feature to address the spoofed address attack. it is recommended to configure i...
Wednesday, 17 June 2020

BGP: x.x.x.x Active open failed - no route to peer, open active delayed 9216ms (35000ms max, 60% jitter)

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BGP: x.x.x.x Active open failed - no route to peer, open active delayed 9216ms (35000ms max, 60% jitter) I was working on an issue and ...
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Monday, 2 March 2020

Cisco Traditional Vs Smart Licensing

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Below are few important distance between Cisco traditional license and new smart licensing. Traditional (node locked) licencing...
Tuesday, 18 February 2020

IP NAT inside source vs IP NAT outside source

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IP NAT inside source vs IP NAT outside source For more information please refer to below cisco link https://www.cisco.com/c/en/us/...
Friday, 14 February 2020

ISR 4331/4531 features in Evaluation mode

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Below are the features available in Evaluation mode. # sh license feature Feature name Enforcement Evaluation Subscription Enabled  Rig...