What’s wrong with the old Cisco Console Cable? As a long time Network Engineer I’ve used a fair share of Cisco console cables and various dongles. The regular generic Cisco Console cables (aka Rollover cable) that come with routers and…
Prerequisites Not all Cisco switches support Netflow. Cisco Catalyst 3650 and 3850 runs IOS XE and supports Full Netflow (not sampled) capability. This feature is only supported from IPBASE license and up. In order to enable this, use the below…
Problem Are you getting this error message when connecting to a SSH Server from your MACOS? Unable to negotiate with x.x.x.x port 22: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1 Solution Since the upgrade of El Capitan (10.11)…
Problem Getting this error message on popup on your Windows 7 PC? Windows has detected an IP address conflict or Duplicate IP Address 0.0.0.0 or The system has detected an address conflict for IP address 0.0.0.0 with the system having…
Perform Web URL Filtering or Blacklisting without additional hardware There’s a simple and free method of performing dynamic web URL filtering or blacklisting on the Cisco ASA without the need of implementing websense or N2H2/Smartfilter server. This is can be…
So you’ve bricked your Linksys SRW2024? Apparently many users have issues upgrading the firmware on this switch. Most realize once after applying the latest update and rebooted, the switch no longer responds and the management interface cannot be accessed. This…
Problem If you ever run into the following error messages: %Error copying usbflash0:cat3k_caa-universalk9.SPA.03.06.04.E.152-2.E4.bin (Not enough space on device) or % flash: requires 295884 KB of free space, but only 167160 KB is available. Operation aborted. You’ve run out of disk…
Where to download the latest Cisco ASA & ASDM firmware image. There’s a nice way for you to do this directly from your ASA & ASDM
Where did my “switchport access vlan 1” command go? Have you ever noticed that Cisco has loaded default configurations onto the switch without showing it on your startup or running config? “switchport access vlan 1” is a good example. Take…
