Snort mailing list archives
Re: Alerts where source and destination addresses equal 0.0.0.0
From: waldo kitty <wkitty42 () windstream net>
Date: Fri, 24 Jan 2014 11:06:13 -0500
On 1/24/2014 7:02 AM, James Lay wrote:
You can add them to your threshold.conf file: suppress gen_id 1, sig_id 2002023, track by_src, ip 0.0.0.0 You'd have to add the above for eash sig. But seeing as those are IRC ports, I'd suggest something nefarious is going on.
agreed... especially given the following... NetRange: 0.0.0.0 - 0.255.255.255 CIDR: 0.0.0.0/8 OriginAS: NetName: SPECIAL-IPV4-LOCAL-ID-IANA-RESERVED NetHandle: NET-0-0-0-0-1 Parent: NetType: IANA Special Use Comment: The address 0.0.0.0 may only be used as the address of an outgoing packet when a computer is learning which IP address it should use. It is never used as a destination address. Addresses starting with "0." are sometimes used for broadcasts to directly connected devices. Comment: Comment: If you see addresses starting with a "0." in logs they are probably in use on your network, which might be as small as a computer connected to a home gateway. Comment: Comment: This block was assigned by the IETF, the organization that develops Internet protocols, in the Standard document, RFC 1122, and is further documented in the Best Current Practice document RFC 6890. IANA is listed as the registrant to make it clear that this network is not assigned to any single organization. Comment: Comment: These documents can be found at: Comment: http://datatracker.ietf.org/doc/rfc1122 Comment: http://datatracker.ietf.org/doc/rfc6890 RegDate: Updated: 2013-08-30 Ref: http://whois.arin.net/rest/net/NET-0-0-0-0-1 -- NOTE: No off-list assistance is given without prior approval. Please keep mailing list traffic on the list unless private contact is specifically requested and granted. ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ Snort-sigs mailing list Snort-sigs () lists sourceforge net https://lists.sourceforge.net/lists/listinfo/snort-sigs http://www.snort.org Please visit http://blog.snort.org for the latest news about Snort!
Current thread:
- Alerts where source and destination addresses equal 0.0.0.0 Cyrille Bollu (Jan 24)
- Re: Alerts where source and destination addresses equal 0.0.0.0 James Lay (Jan 24)
- Re: Alerts where source and destination addresses equal 0.0.0.0 Cyrille Bollu (Jan 24)
- Re: Alerts where source and destination addresses equal 0.0.0.0 waldo kitty (Jan 24)
- Re: Alerts where source and destination addresses equal 0.0.0.0 James Lay (Jan 24)