SmallNetBuilder Forums
Go Back   SmallNetBuilder Forums > LAN & WAN > Switches, NICs and cabling

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-13-2012, 07:04 AM
eosis eosis is offline
New Member
 
Join Date: Nov 2012
Posts: 4
Thanks: 1
Thanked 0 Times in 0 Posts
eosis is just starting out
Default Smart switches allowing outbound from mirror dest port?

I'm searching for a managed switch that allows me to not only mirror a port/ports, but also to still use the destination port of those mirrors as a link to the internet/the rest of the network (ie. I want to be able to send information on the network, ping other machines, etc). Aside from this, I still need the VLAN functionality of good switches, and ideally PoE provided on at least one of the ports, too.

I have seen the majority of these features on the NETGEAR GS108PE, but still cannot determine if I can use the destination port of the mirrored ports as a normal network port. Has anyone got any experience of this switch and could perhaps point me in the right direction?

Here''s an example scenario:

Port 1 - Computer
Port 2 - Rest of the network / internet
Port 3 - IP phone
A mirror would be set up from Port 3 with the destination port set as Port 1. I would like to then be able to access the internet from the computer on Port 1.

I've heard reports that this is possible with the GS108E ( http://www.youtube.com/watch?feature...zyByh1U#t=156s ), but would like some more confirmation with regards to the GS108PE before I part with money.
Reply With Quote
  #2  
Old 11-13-2012, 11:08 PM
stevech stevech is offline
Very Senior Member
 
Join Date: Mar 2010
Location: San Diego
Posts: 4,989
Thanks: 1
Thanked 358 Times in 345 Posts
stevech is just starting out
Default

My low cost Netgear GS108E allows mirroring for any of its 8 ports. I'd think that one port could be that which is the uplink to the router. Not advised though. All I've done with port mirroring on this GS is to mirror port A to port B, where B has my test PC and port A is a connection to another switch into which lots of things are plugged.

My GS108E came from eBay - not new, but arrived in like-new packaging. It was like $50 or so.

Last edited by stevech; 11-13-2012 at 11:10 PM.
Reply With Quote
The Following User Says Thank You to stevech For This Useful Post:
  #3  
Old 11-14-2012, 11:46 AM
eosis eosis is offline
New Member
 
Join Date: Nov 2012
Posts: 4
Thanks: 1
Thanked 0 Times in 0 Posts
eosis is just starting out
Default

Thanks for the reply stevech,

So you can't choose the destination port to mirror to?

I don't suppose you'd be able to try pinging other devices on the switch from the destination port of the mirror(s) to see if it's possible? Netgear support are pretty much useless and it seems not many other people are interested in this functionality!

eosis
Reply With Quote
  #4  
Old 12-07-2012, 11:52 AM
dnoyeb dnoyeb is offline
New Member
 
Join Date: Dec 2012
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
dnoyeb is just starting out
Default

When I do port mirroring to my computer that is running wireshark, I still access devices web interfaces from that same computer. I use a Dlink DGS-1100-16. Not sure why any switch would prevent this.

However, once you mix in VLANs thats a different thing. I'm not sure port mirroring will mirror VLAN data onto a port that is not part of the VLAN. I havent felt like doing an investigation so I always make sure my mirror port is in an appropriate VLAN to see the data I am after.
Reply With Quote
  #5  
Old 12-08-2012, 07:47 AM
eosis eosis is offline
New Member
 
Join Date: Nov 2012
Posts: 4
Thanks: 1
Thanked 0 Times in 0 Posts
eosis is just starting out
Default

Thanks for your replay, dnoyeb.

Yes, I thought the same thing, but when I tested this functionality with the NETGEAR GS110-TP, it didn't work.

I can confirm, however, that the NETGEAR GS108E (NOT a typo, the GS108E without POE, etc; I still do not know about the GS108PE) did do exactly what I needed; ie. I can mirror across a VLAN and still transmit frames out of the port.
Reply With Quote
Reply

Tags
managed switch, mirroring, voip

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


All times are GMT -4. The time now is 10:02 PM.


Top 10 Stats
Top Posters* Top Thanked
RMerlin  319
L&LD  113
john9527  110
azazel1024  84
htismaqe  82
stevech  79
jegesq  76
huotg01  74
watusi  54
ColinTaylor  53
RMerlin  6392
john9527  502
stevech  357
ryzhov_al  298
TeHashX  263
L&LD  255
RogerSC  205
sinshiva  149
sfx2000  137
hggomes  128
Most Viewed Threads* Hottest Threads*
Old Why not...  8286
Old ASUS RT-N66U...  5727
Old RT-AC66U...  3448
Old Why ASUS?  2379
Old NAS...  1840
Old Asus...  1497
Old OpenVPN...  1410
Old Remote...  1356
Old The future...  1346
Old Trouble...  1282
Old Why not...  81
Old Remote...  45
Old Whats going...  30
Old The future...  26
Old RT-N66U...  26
Old Extension...  26
Old ASUS RT-N66U...  25
Old What are the...  25
Old OpenVPN...  24
Old Why ASUS?  22


Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
© 2006-2014 Pudai LLC All Rights Reserved.