How does Websense scan all networks on a switch

The question is how does websense scan all networks on a switch?
If you have on singel switch that has:
LAN#1 10.1.0.0
LAN#2 10.2.0.0
LAN#3 10.3.0.0
Firewall Innternal
DMZ Lets say the websense server is placed in DMZ but all the trafic from the LAN's go thru here. But they are connected thru the same swtich that uses VLAN
Firewall Ext

my question is how does websense catch all the trafic from all clients/servers?
GMH77Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ngravattCommented:
on some devices, you can mirror all the traffic for each vlan and send it to a port that websense will monitor.

0
GMH77Author Commented:
What do you call this, is it like when you make a span port???
Please explain span port if possible
0
ngravattCommented:
yeah, a span port.  you setup a monitoring session.  I usually span the port that is the uplink to the ISP.  Its usually the port on your router that will connect the inside interface on the firewall

on a switch type

monitor session 1 source int fa 'xx'  -this is the port that is the uplink to the firewall/router/ISP
monitor session 1 destination int fa 'xx' -websense monitor port.

all traffic that goes to a different vlan (that includes the Internet traffc) will have to pass through a router and firewall.  So you want to find that port.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Development

From novice to tech pro — start learning today.