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AR15.COM
2/9/2011 8:52:32 PM EDT
I need to run a sniffer on an Internet connection. The problem is that I need a small and cheep switch that do port mirroring. Does anybody know of like a three port switch that can do port mirroring?
2/10/2011 5:06:34 AM EDT
[#1]
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
2/10/2011 10:23:13 AM EDT
[#2]
What is port mirroring.  Why wouldnt a plain old hub work?
2/10/2011 10:45:22 AM EDT
[#3]
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.
2/10/2011 11:10:21 AM EDT
[#4]
Let us know how that things work, looks like it could come in handy.
2/10/2011 11:12:27 AM EDT
[#5]
Quoted:
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.


Instead of getting a whole new switch, why not plug a hub into the port in question, plug the cable that was in the port to the hub, then packet sniff off another port on the hub?
2/10/2011 11:14:15 AM EDT
[#6]
Quoted:
Quoted:
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.


Instead of getting a whole new switch, why not plug a hub into the port in question, plug the cable that was in the port to the hub, then packet sniff off another port on the hub?


Don't have any hubs.
2/10/2011 11:39:55 AM EDT
[#7]
Quoted:
Quoted:
Quoted:
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.


Instead of getting a whole new switch, why not plug a hub into the port in question, plug the cable that was in the port to the hub, then packet sniff off another port on the hub?


Don't have any hubs.



Do you think the concept would work?
2/10/2011 11:41:56 AM EDT
[#8]
Quoted:
Quoted:
Quoted:
Quoted:
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.


Instead of getting a whole new switch, why not plug a hub into the port in question, plug the cable that was in the port to the hub, then packet sniff off another port on the hub?


Don't have any hubs.



Do you think the concept would work?


Without a doubt.  A hub floods all frames to all ports so it would work perfectly.
2/10/2011 11:53:35 AM EDT
[#9]
Quoted:
Quoted:
Quoted:
Quoted:
Tagging, cuz I'm curious if there is anything cheap out there that does.  I've used it on some Cisco gear before, it's a great feature.

ETA: what part of Texas are you in?  I have a 3550 at home that's part of my lab that would do it, if you just needed something temporary to track something down.
I'm in San Antonio, but if it comes to that I can borrow one from a co-worker at my day job.  But, thank you.


I found this: Amazon Link that looks like it should do it.  I'll report back.

Quoted:
What is port mirroring.  Why wouldnt a plain old hub work?


Port mirroring is a function of a switch that says that anything that comes in or out on port X is also copied over to port Y.  They are needed when you are using packet scanners.


Instead of getting a whole new switch, why not plug a hub into the port in question, plug the cable that was in the port to the hub, then packet sniff off another port on the hub?


Don't have any hubs.


You don't have a switch either

You could go out and buy a managed switch that would have this capability or get a cheapo hub and just run the machine in question and the sniffer through it.
2/10/2011 11:55:00 AM EDT
[#10]
plus a hub costs like 5 bucks, oh wait you already said that.

edit:  post 1337, amusing.