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I want to make sure that I am doing this right. I want to setup my Cisco Catalyst 3750 to span my default VLAN1. I have a server with two NIC's and believe this is the way I should set it up, let me know if I am wrong:<br />
<br />
1) On one NIC attach to a port that is on a separate VLAN from the port I want to monitor. This NIC will only be used to listen to traffic from the switch. It will be attached to port Gi1/0/1<br />
<br />
2) On my other NIC I will leave it attached to the network. It will be attached to port Fa2/0/1<br />
<br />
3) I will enter the following command into my Cisco switch in config mode: <br />
monitor session 1 source vlan 1 both<br />
monitor session 1 destination interface fa2/0/1<br />
<br />
I am going to use Ethereal to view network traffic. The link to the resource I am using is <a href="http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdee2.html" rel="ugc">http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdee2.html</a><br />
<br />
Thanks in advance.
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I want to make sure that I am doing this right. I want to setup my Cisco Catalyst 3750 to span my default VLAN1. I have a server with two NIC's and believe this is the way I should set it up, let me know if I am wrong:

1) On one NIC attach to a port that is on a separate VLAN from the port I want to monitor. This NIC will only be used to listen to traffic from the switch. It will be attached to port Gi1/0/1

2) On my other NIC I will leave it attached to the network. It will be attached to port Fa2/0/1

3) I will enter the following command into my Cisco switch in config mode: 
monitor session 1 source vlan 1 both
monitor session 1 destination interface fa2/0/1

I am going to use Ethereal to view network traffic. The link to the resource I am using is http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00801cdee2.html

Thanks in advance.

BiDirectional SPAN on Cisco Catalyst 3750 question

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