05-07-2009 10:37 AM - edited 03-06-2019 05:36 AM
Hi all,
is it possible to configure port mirroring in Cisco router?
If no, how can I mirror traffic from one port to other?
Any idea?
BR
jl
05-07-2009 10:39 AM
bridge the two interfaces
HTH
Frank
05-08-2009 11:03 AM
Hi Frank,
pls could you explain me closer
(or recomend any document)how to do that.
Is it possible to bridge more interfaces to one like in a switch and than plug to that interface monitoring station?
BR
jl
05-08-2009 11:17 AM
This is 1 option, there are several others available.
Remember to connect your traffic analyzer to one the interfaces on the router to capture your traffic
Also, you really do not need to trunk the interfaces "encapsulation dot1Q" but here just in case you need to interface with a Cisco switch.
Also additional "direct-to-the-point" help
http://www.netcraftsmen.net/welcher/papers/irb.htm
Regards
Frank
bridge irb
!
interface FastEthernet0.100
encapsulation dot1Q 100 Native
bridge-group 1
!
interface FastEthernet0.200
encapsulation dot1Q 200
bridge-group 1
!
interface BVI1
ip address 192.168.1.1 255.255.255.0
!
bridge 1 protocol ieee
05-07-2009 10:46 AM
Hello John,
SPAN is not available on routers so it is not an option.
There is a new packet capture feature.
see
http://www.cisco.com/en/US/prod/collateral/iosswrel/ps6537/ps6555/ps9913/datasheet_c78-502727.html
this can be possible or not on your router.
Hope to help
Giuseppe
05-08-2009 10:58 AM
Thanks Giuseppe,
we have 3600 series router so we cannot use this feature, but this feature is usable for me if decide to move to ISR series one.
BR
jl
11-29-2012 01:03 PM
Here's how to configure packet captures on ISR.
http://www.cisco.com/en/US/docs/ios-xml/ios/epc/configuration/15-2mt/nm-packet-capture.html
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: