1.
Cisco IOS hints and tricks: AS-path based filter of customer BGP ...
Writing an implicit AS-path filter that recognizes AS-path prepending is trickier and requires the use of pattern recall – part of regular expression could ...
2.
Cisco IOS hints and tricks: UDP flood in Perl: version 2
UDP flood in Perl: version 2. I had to do some precise QoS tests and needed a flooding tools that I could tightly control, so I rewrote the PERL UDP ...
3.
Cisco IOS hints and tricks: UDP flood in Perl
udp flood. ############## use Socket; use strict; if ($#ARGV != 3) { print "flood.pl <ip> <port> <size> <time>\n\n"; ...
4.
Cisco IOS hints and tricks: Log the NTP events
Oct 11 2007 11:23:24.408 EDT: %WCCP-5-SERVICEFOUND: Service web-cache acquired on WCCP client 192.168.1.6 000298: Oct 11 2007 12:26:18.075 ...
5.
Cisco IOS hints and tricks: Deploying Zone-Based Firewalls
Cisco Press has just released my latest book (and my first digital one): Deploying Zone-Based Firewalls. The book covers a completely new way to configure ...
6.
Cisco IOS hints and tricks: Disable optional IOS features on high ...
Disable optional IOS features on high CPU load ... has submitted an interesting EEM applet in a comment to the Generate SNMP trap on high CPU load post. ...
7.
Cisco IOS hints and tricks: EEM violates RFC 822
Tutorial: Tclsh on Cisco IOS · Running IOS commands from Tclsh: the details you n... Dance around IOS bugs with Tcl and EEM ...
8.
Cisco IOS hints and tricks: Persistent EEM variables
namespace import ::cisco::eem::* namespace import ::cisco::lib::*. Set the variable value to zero (in case we haven't saved the value before) and read the ...
9.
Cisco IOS hints and tricks: Last-resort password recovery
Pappyar has sent me an interesting password recovery technique, which can be used in those weird circumstances when you cannot force the router to go to ...
10.
Cisco IOS hints and tricks: Type 7 decryption in Cisco IOS
Tim Riegert sent me an interesting hint: you don't need password crackers to decode type-7 passwords, you just need access to a router. ...
