Cisco IOS

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This Page Is Currently Under Construction And Will Be Available Shortly, Please Visit Reserve Copy Page


This page should hold links to Cisco specific configurations and commands.

Block IPv6 Between VLANs on Cisco Switches

  • create mac ACL to block ethertype 86DD
  • apply to interface ingress


  • with SNMP write enabled on the router or switch, the following command will send a copy of the running configuration to the specified TFTP server:

<pre>snmpset -t 5 -v 1 -c PRIVATE HOST . s FILENAME</pre> Replace the following in the above command:

  • PRIVATE: the SNMP private key for write access
  • HOST: the hostname/address for the router or switch
  • W.X.Y.Z: The IP address of the TFTP server. If the IP is, it would appear as .
  • FILENAME: The filename to save on the TFTP server.

Quick Notes

  • escape sequence: The Cisco escape sequence mentioned in commands such as traceroute and ping is, by default, Control-^ (control+shift+6).