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Hi, We have 4 no of cisco 3750 switches in stack. Q.1 ) How to upgrade IOS of all 4 switches, by keeping them in stack... As per my knowledge one way is isolate them, upgrade ios, again add them in stack, which would be last way or lengthy procedure....

s4sandyad by Level 1
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  • 9 replies
  • 0 Helpful votes

Currently dealing with a large amount of LandAttack messages on the ASA firewall.  Doing a capture on the ASA leads it to a SVI mac address on the core(4506).  I am trying to setup a monitor capture to catch all traffic going to the ASA on those cert...

tsiemers1 by Spotlight
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  • 6 replies
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Hi,  We are getting spike in high cpu utilization in cisco 1841: c1841-advipservicesk9-mz.124-9.T4.bin. Please check the logs and suggest further action. ------------------ show process cpu ------------------ CPU utilization for five seconds: 26%/...

Issue 1:  I have an internal Spiceworks webserver sitting behind a 5512.  I can't seem to figure out how to configure hairpin NAT using ASDM.  I'm not familiar enough with the CLI anymore to tackle it that way.  Additionally, initial requests are mad...

Please bare with me. I'm a newbie. I'm a junior entry level engineer. Migrating some devices from several smaller subnets /26 to a new /24 subnet. Senior engineers told me to have a plan to migrate these devices over since we won't be able to do thi...

Matty Ray by Level 1
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  • 2 replies
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Dear all, I tried to configure remote access VPN on Cisco router 1901, but it does not work. The interface tunnel 1 on router status is Up - Down. Could anyone please check my configuration file and help me to correct it ? Thank you all, Lam

1. Let's say I have 2 subnets , 192.168.1.0/24 and 192.168.2.0/24, i want to configure interfaces 0/1 to 0/12 to VLAN1 to cater for 192.168.1.0/24 and interfaces 0/13 to 0/20 to cater for 192.168.2.0/24, the traffic from VLAN1 can communicate to VLAN...

z080236 by Level 1
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  • 1 replies
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Hello all, I was wondering if someone could answer me the below log that i have noticed and i am not quite sure what it is.2016 Jun 22 13:42:12     %KERN-2-SYSTEM_MSG: eth0: MAC1 errors: tx_overflow=0 tx_parity=0 rx_parity=0 rx_fifo=0 - kernel Than...