Solved SPAN port setup for source & destination interface

May 21, 2015 at 09:18:30
Specs: Windows XP, 4GB
I have a quick question about to configure SPAN port on cisco switch, is it necessary to configure individual ports (source and destination port ) configure as mode access and belong to any VLAN?

for example:
monitor session 1 source interface Gi0/8
monitor session 1 destination interface Gi0/7

what is configuration of gi0/8 and gi0/7?

config t
interface gi0/8 and gi0é7
switchport mode access

is it good enough? do they need any vlan config?


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May 21, 2015 at 14:19:47
We use a hardware solution where I work that might interest you. It's an "ethernet tap" and it's made by NetOptics.

You might want to take a look at their products, or another like it by a different manufacturer. They're certainly a lot more user friendly than doing a span (mirror) port on a cisco switch.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***

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May 21, 2015 at 15:22:19
✔ Best Answer
Lots of how to's. You can see vlans are included

Answers are only as good as the information you provide.
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