Voice Over IP Overview w/Secuirty

99, are you SURE This connection is secure? 99? 99? Can you hear me now??

Voice Over IP, A Security Overview Christopher Duffy, CISSP

VoIP Security Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],only to come back bigger than ever.” - (Alan Cohen VP Cisco)

CONVERGENCE! ,[object Object],[object Object],[object Object],[object Object]

Global Definitions ,[object Object],[object Object],[object Object],[object Object]

Global Definitions (Cont) ,[object Object],[object Object]

QOS ,[object Object],[object Object],[object Object]

Latency ,[object Object],[object Object],[object Object],[object Object],[object Object]

Jitter ,[object Object],[object Object],[object Object]

Protocols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Protocols ,[object Object],[object Object],[object Object],[object Object]

Session Initiated Protocol ,[object Object],[object Object],[object Object],[object Object],[object Object]

SIP Entities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

SIP Entity Example User Agent Hard phone Proxy Server VoIP Gateway User Agent Soft phone User Agent 802.11X Traditional Digital Analog Registration Server Packet Switched Network Circuit Switched Networks Registration Server PBX

VoIP Threats: Denial of Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Concern – Denial of Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Threat:Eavesdropping ,[object Object],[object Object],SonicWALL/SecureIT

VoIP Threats: Eavesdropping ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Concern – Quality of Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Concern – Interception/Modification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Practices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Practices – Media and Signaling Encryption ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Firewall – NAT/Port Considerations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Firewall Solution – SBC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Firewall Solutions – ALG ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

NIST Recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VoIP Security Practices – Endpoint and Call Manager Protection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object]

Voice Over IP Overview w/Secuirty

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