Snort mailing list archives
Re: Interesting traffic...
From: Jason Haar <Jason.Haar () trimble co nz>
Date: Wed, 27 Feb 2002 16:11:03 +1300
On Tue, Feb 26, 2002 at 04:11:35PM -0600, Mark Mason wrote:
[**] [1:528:2] BAD TRAFFIC loopback traffic [**] [Classification: Potentially Bad Traffic] [Priority: 2] 02/26-11:25:30.667238 127.0.0.1:15158 -> xxx.xxx.xxx.xxx:6473 TCP TTL:63 TOS:0x0 ID:9155 IpLen:28 DgmLen:68 DF IP Options (2) => LSRR NOP ******S* Seq: 0x1BE3F7DA Ack: 0x0 Win: 0xFFFF TcpLen: 40 TCP Options (6) => MSS: 16344 NOP WS: 1 NOP NOP TS: 281854 0
Well, if this isn't local - I'd say it's time to reconfigure your perimeter router. Remember: INGRESS/EGRESS FILTERS!!! :-) OTOH, the TTL:63 implies one-hop from the sender - so that implies a LAN host... Compaq Insight Manager has a lovely bug where laptops it's installed on broadcast their services from 127.0.0.1 to 127.0.0.1 (yeah, tell me how they did that!) - but not on those port numbers... -- Cheers Jason Haar Information Security Manager Trimble Navigation Ltd. Phone: +64 3 9635 377 Fax: +64 3 9635 417 _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
Current thread:
- Interesting traffic... Mark Mason (Feb 26)
- Re: Interesting traffic... Ashley Thomas (Feb 26)
- Re: Interesting traffic... Jason Haar (Feb 26)
- Re: Interesting traffic... Ashley Thomas (Feb 26)
- Re: Interesting traffic... Jason Haar (Feb 26)
- Re: Interesting traffic... Ashley Thomas (Feb 26)
- <Possible follow-ups>
- Re: Interesting traffic... Scott Taylor (Feb 26)
- RE: Interesting traffic... Mark Mason (Feb 27)