Hi Jonathan, Thanks for your solution.
> Let me know if that helps or harms. :-) Yes that help a lot but I don't think that the Cisco Catalyst 2950 switches have support for NetFlow. I'm checking the user documentation for this model and cannot read anywhere that it capable to support and provide NetFlow. Let me know if I'm wrong here. Gerhard, > An alternative to that is to use Cisco's NetFlow to report data to an > NTop collector. This way, you don't need to use port mirroring. You > can see a paper I wrote on this at > http://prdownloads.sourceforge.net/ntop/ntop-netflow-cisco.pdf?download. > Let me know if that helps or harms. :-) > > --Jonathan > >> -----Original Message----- >> From: Crowe, Tom [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, April 20, 2004 8:51 AM >> To: [EMAIL PROTECTED] >> Subject: RE: [Ntop] Ntop and the Cisco Catalyst 2950 switches >> >> >> >> Gerhard, >> >> Attached is a PDF off Cisco's website about configuring the 2950 with > a >> SPAN port. You have to configure a port on the switch where all > traffic >> on the switch will be mirrored to the SPAN port. It's very simple to >> configure and you don't have to do anything special for ntop. >> >> I have a similar setup using fBSD 4.9 and ntop 3 monitoring a 2950 and >> another box monitoring a 3500. >> >> -Tom >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of >> [EMAIL PROTECTED] >> Sent: Tuesday, April 20, 2004 12:43 AM >> To: [EMAIL PROTECTED] >> Subject: [Ntop] Ntop and the Cisco Catalyst 2950 switches >> >> Hello list, >> >> I'm presently trying to install and run Ntop version 3.0 on a large >> network where the Cisco Catalyst 2950 switches is used to connect >> systems together. Ntop install correctly but cannot see all trafic on >> the network. >> I just get small amount of information (>= 400kb) and nothing else on >> every monitored servers. Even if a try to transfert large amount of > data >> (50MB or less) nothing are displayed into the reported page. Does >> somebody on this list have an idea about the problem? I'm pretty sure >> that someone know what the problem is because cisco switches are often >> used onto entreprises. >> >> 1- Does I've to use the Netflow/sflow feature of ntop with the Cisco >> Catalyst 2950 switches to make it work? >> >> 2- Does using eth0 is enought to make it work with the Cisco Catalyst >> 2950 switches? >> >> 3- Does I've to enable/configure something into the Cisco Catalyst > 2950 >> switches to make it work? >> >> Any comments are welcome and I thank you for your answer. >> >> Gerhard, >> _______________________________________________ >> Ntop mailing list >> [EMAIL PROTECTED] >> http://listgateway.unipi.it/mailman/listinfo/ntop >> >> >> >> > ------------------------------------------------------------------------ > -- >> ------ >> This e-mail may contain privileged or confidential information. If > the e- >> mail was not intended for you, please (i) delete the e-mail and any >> attachments; (ii) destroy any copies that may have been made; (iii) do > not >> use, copy, or distribute the contents in any form; and (iv) notify the >> sender by return e-mail or by calling (864) 242-8200. No privilege is >> waived by inadvertent transmission. >> >> Thank you. >> > ------------------------------------------------------------------------ > -- >> ------ > _______________________________________________ > Ntop mailing list > [EMAIL PROTECTED] > http://listgateway.unipi.it/mailman/listinfo/ntop > _______________________________________________ Ntop mailing list [EMAIL PROTECTED] http://listgateway.unipi.it/mailman/listinfo/ntop
