Friday, 1 March 2013

A Better Way to Compare 7750 Configs

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One of the tasks I regularly have to perform as part of my job is to audit router configurations against basebuild templates and occasionall...
Friday, 1 February 2013

A Tool for Measuring Forwarding Delay in Packet Captures

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I have access to some pretty expensive test kit in work. One of its main purposes in life is to measure the latency of traffic streams passi...
Tuesday, 22 January 2013

RADIUS and L2TP Support Added to "dechap"

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This is just a very short message to say that I have enhanced the "dechap" tool mentioned in my previous post. In addition to the ...
Monday, 21 January 2013

Recovering CHAP Passwords from Sniffed PPPoE Sessions

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In a previous blog post I outlined the theory behind setting up a PPPoE session including PPPoE discovery, LCP, NCPs and, more relevant to t...
2 comments:
Friday, 11 January 2013

A Script to Bring Up a PPPoE Sessions using Python & Scapy

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As I mentioned in my previous post, I have put together a script which can bring up a PPPoE session, authenticate using CHAP, negotiate an I...
7 comments:
Thursday, 10 January 2013

Bringing Up a PPPoE Session - The Theory

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In a previous post, I shared a Scapy script that implements the PPPoE discovery stage and stops once the session stage is reached. As handy ...
1 comment:
Friday, 21 December 2012

All sorts of things about LACP and LAGs

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A lot of people consider link aggregation groups (LAG / etherchannel / portchannel / MLT) to be pretty basic functionality that "just w...
37 comments: