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Security Incidents mailing list archives

Re: ICMP time exceed in-transit packets
From: rquinn () SEC SPRINT NET (Rob Quinn)
Date: Thu, 30 Dec 1999 13:30:44 -0500


22:32:06.344676 210.207.190.33 > sanitized.84.0: icmp: time exceeded in-transit


 You get these back from tracerouting, or when a packet takes too many hops,
usually due to a routing loop. 210.207.190.33 is a cisco.
 An older version of some popular software (Nuke Nabber?) identifies these
packets as an attack, causing us to receive tons of semi-automated compliants
about or backbone routers.

--
| Opinions are _mine_, facts                                     Rob Quinn |
| are facts.                                                 (703)689-6582 |
|                                                    rquinn () sec sprint net |
|                                                Sprint Corporate Security |

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