Cisco Spark Firewall Traversal Whitepaper

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Cisco Spark is a cloud collaboration platform that brings together all your people and communication tools in one secure
Introduction ............................................................................................................................................ 1 Table of Contents .................................................................................................................................... 2 Customer Journey ................................................................................................................................... 3 Early Adoption ..................................................................................................................................................3 Official Trials .....................................................................................................................................................4 Deployment ......................................................................................................................................................4 Post Deployment ...............................................................................................................................................5

Messages and Signaling ........................................................................................................................... 5 Ports and Protocols ...........................................................................................................................................5 URLs..................................................................................................................................................................5 Messaging and Signaling ............................................................................................................................................ 5 File and Content Storage ........................................................................................................................................... 5 Software Upgrades .................................................................................................................................................... 5 Metrics and Analytics................................................................................................................................................. 6

Sending and Receiving Media .................................................................................................................. 6 Media Node Discovery .......................................................................................................................................6 Media Connectivity ...........................................................................................................................................7 Inside-initiated UDP to ANY Destination IP Address ................................................................................................. 8 STUN Inspection......................................................................................................................................................... 8 Hybrid Media ............................................................................................................................................................. 9 IP Range Whitelisting (coming soon) ......................................................................................................................... 9 HTTP Proxy Traversal ............................................................................................................................................... 10 HTTP Proxy in Split Signaling and Media Scenarios ........................................................................................... 10

Summary .............................................................................................................................................. 11

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List of Media Nodes

RTT

STUN Inspection

Outbound ANY : ANY

Hybrid Media Node Outbound 1 : ANY

IP Range Whitelisting

Fallback (TCP,TLS,HTTP Proxy)

STUN

H Ideal

Pragmatic

FW HTTP, WebSocket (TLS 443) SRTP/UDP/TCP 5004, 5006

SRTP/UDP/TCP 5004

Hybrid Media Node

192.168.1.45

Cisco Collaboration Cloud

UDP/TCP 5004

Media HTTP Proxy

Messages/ Signalling

Cisco Collaboration Cloud

HTTPS/WebSockets

Hybrid Media Node

UDP/TCP 5004

Media

Cisco Collaboration Cloud

HTTPS/WebSockets

Messages/ Signalling HTTP Proxy



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