Configure SPAN on Cisco 3620

[liquidous]

Greetings,
this is my first post to the forums. Nice to know there is such a large base of know-how. I'll get to the point.


I am suspect of having a security issue on my network and to find facts, avoid, and prevent any further issues i need to monitor my network. I have a cisco 3620 router. I want to port monitor / SPAN the entire network and have the traffic sent to my analysing software to my IP address. however, i have DHCP addressed network. if i use the connection without letting it time out (3 day limit) then i will retain the same ip, however it is not always the case.

my specific question is, how do i configure my router to enable Spanning? i admit im a bit confused when my software vendor tells me i have to enable it on the switch, as switches are non-configurable (at least mine are..) i assume they mean Cisco's EtherSwitch (router switch software).

if anyone can point me to information on the web, user manual etc, i would be grateful. i have been searching all day with no luck.

kind regards

 

[KiscoKid]

Hi there.

Welcome to the forum. Unfortunately you cannot configure span on a Cisco router. You can however configure it on most if not all of their switches.

Cisco, as you might expect, offer a wide range of switches depending on your functionality, capacity and scalability requirements. One of current their lower end models is the 2950. Below I've included a URL that explains what SPAN is and how to configure it on a 2950 (don't worry, it's the same process to configure it on any of their IOS-based switches)

http://www.cisco.com/en/US/products...figuration_guide_chapter09186a00800d84c5.html

Hope this helps

 

[liquidous]

Ok. Thanks for the info.
Looks like i will not be able to use this feature or client software for monitoring at all, as I do not have any of their switches, only 2- 3Com 3C16471 Superstack 3 switches. On the switches it says "All Ports are Auto MDI / MDI-x " .

looks like i can not SPAN on my network.

arg