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CCNP

Loki - L3 packet generation and manipulation tool

Notes: Loki is a Python based framework implementing many packet generation and attack modules for Layer 3 protocols, including BGP, LDP, OSPF, VRRP and quite a few others.

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Cisco Catalyst 2960 switch IOS recovery

Sometimes in my lab happens that students delete IOS of the switch from its flash. Unfortunately switches does not have rommon to realize quick IOS recovery over tftp. Only one way is over Xmodem.

Cat 2960 switchIOS recovery

To speed up the process of the recovery we may setup Xmodem speed to higher rate as default 9600 bits:

Set the speed rate to 115200 baud on the switch prompt of the switch:

Configuration of the RIPv2 authentication

In this article I will configure, debug and shows the process of RIPv2 authentication.

 

Authentication methods

  1. Plain text
  2. MD5

 

Note 1: When using plain text authentication mode, make sure that the following parameters are matching on neighboring routers for successful authentication.

  • Key-string

  • Authentication mode

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