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IP traffic export: how to mirror traffic on a router
ciscozine
263 views
The Switched Port Analyzer (SPAN) feature, which is sometimes called port mirroring or port monitoring, selects network traffic, from a switched port, for analysis by a net...
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EPC: An Embedded Packet Capture
ciscozine
160 views
Started with IOS 12.4(20)T version, EPC or Embedded Packet Capture, is a powerful feature to capture data packets flowing through, to, and from, a Cisco router. In contrast...
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Speed up your reload
ciscozine
324 views
How long does it take to reload your router? 3 or 4 minutes? Do you know that is possible to speed up your router reboot? If your answer is negative, read how warm reload i...
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How to schedule a reload
ciscozine
103 views
Not everyone knows that the reload command permits to schedule a reboot system, for instance to plan a night router restart or during a critical configuration (AAA, vty, an...
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Decrypt Type-7 password with Cisco IOS
ciscozine
1,600 views
There are many tools to decrypt Cisco type-7 password, based on Vigenere algorithm. But, what can we do if we can not use these software? The Cisco-IOS method might not be ...
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How to decode G.729
ciscozine
1,546 views
I have decided to write this tutorial (only for test purpose) to show how it is simple decode a G.729 stream using SPAN port, Wireshark, VoiceAge G.729 decoder and Audacity...
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Time Based access lists
ciscozine
452 views
An access list is a sequential list consisting of at least one permit statement and possibly one or more deny statements that apply to IP addresses and possibly upper-layer...
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How to trace a MAC address
ciscozine
7,401 views
The traceroute mac command output shows the Layer 2 path when the specified source and destination addresses belong to the same VLAN. If you specify source and destination ...
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Access to the console via AUX port
ciscozine
2,158 views
Often in a network environment, it is needed to manage a router/switch via console, but what can you do if you don't have a computer with a serial interface? You can use an...
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Cron? No Kron :)
ciscozine
463 views
Cron is a time-based job scheduler in Unix-like computer operating systems. The name cron comes from the word "chronos", Greek for "time". Cron enables users to schedule jo...
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