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Fernando DF

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About Fernando DF

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  1. Hi, I need help! We are in problem with the Snom 300. The Cisco IPS is blocking the connections with this signature: http://tools.cisco.com/security/center/viewIpsSignature.x?signatureId=25999&signatureSubId=0 Log IPS: Drop: evIdsAlert: eventId=1333636247462315372 vendor=Cisco severity=high originator: hostId: ips appName: sensorApp appInstanceId: 456 time: Abr 09, 2012 16:43:02 UTC offset=-180 timeZone=GMT-03:00 signature: description=Malformed SIP Packet Denial of Service id=25999 version=S598 type=vulnerability created=20100512 subsigId: 0 sigDetails: Malformed SIP Packet Denial of Service marsCategory: DoS/NetworkDevice interfaceGroup: vs0 vlan: 0 participants: attacker: addr: "X.X.X.X Local IP Network" locality=OUT port: 2048 target: addr: "X.X.X.X - PBX IP" locality=OUT port: 5060 os: idSource=unknown type=unknown relevance=relevant actions: droppedPacket: true alertDetails: InterfaceAttributes: context="single_vf" physical="Unknown" backplane="GigabitEthernet0/1" ; riskRatingValue: 95 targetValueRating=medium attackRelevanceRating=relevant threatRatingValue: 60 interface: GigabitEthernet0/1 context=single_vf physical=Unknown backplane=GigabitEthernet0/1 protocol: udp This only happens with Snom phones because we have other phones from Cisco, and these Policom works perfectly.
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