nanog mailing list archives

Re: Any tools to help network security

From: David Miller <dmiller () tiggee com>
Date: Wed, 21 Dec 2011 14:12:12 -0500

On 12/21/2011 2:03 PM, sthaug () nethelp no wrote:

We discover there are so many (source) ip not belonging to our network
to go to outside.

We can block it but don't know how to locate the source.

Any tools can be easily found out.

http://lmgtfy.com/?q=unicast+rpf

Steinar Haug, Nethelp consulting, sthaug () nethelp no


Also - http://lmgtfy.com/?q=tracing+spoofed+source+on+network

Which get you to some strategies for finding the source(s) on yournetwork (which I believe was the OP's question). Including:

  http://www.csm.ornl.gov/~dunigan/oci/bktrk.html
  http://www.cymru.com/Documents/tracking-spoofed.html

-DMM

Current thread:

Any tools to help network security Deric Kwok (Dec 21)
- Re: Any tools to help network security sthaug (Dec 21)
  - Re: Any tools to help network security David Miller (Dec 21)
    - Re: Any tools to help network security Christopher Morrow (Dec 21)