Sunday 20 March 2022

 

Expressway MRA Encrypted call and ICE Media Path Optimization

Exp-C

 

CISCO Cisco Expressway-C Status System Configuration Maintenance Unified CM servers Unified CM server lookup Unified CM publisher a Username Password TLS verity mode AES GCM support SIP UPDATE tor session refresh ICE Passthrough support cucml dcloudciscocom administrator

 

CISCO Status Cisco Expressway-C System Configuration Maintenance Unified Communications Configuration Unified Communications mode MRA Access Control Authentication path Authorize by OAuth token with refresh Authorize by user credential Allow Jabber iOS clients to use embedded Safari browser Check tor internal authentication availability Allow activation code onboarding Mobile and remote access LICMA_DAP basic authentication

 

CISCO Cisco Expressway-C Status Zones System Name DetautZone Configuration CEOAuth-cucmI dcloudciscocom CEtco-cucmI dcloudciscocom mra-traversal Maintenance Detaut zone Neighbor Neighbor Unified Communications traversal

 

Search rules Priority Rule name Ctlcø-cucml uciouüCiscocom CEOAuth-cucmI dcloudciscocom LocalZoneMatch Protocol Source Authentication required Mode Alias pattern match Alias pattern match Any alias Pattern type Pattern string cucml cucml dcloudciscocom:50gI

 

ICE Optimization，packet capture Jabber calls not via expressway

 

udp and host 198.18.2.38 and host 198.18.2.39

 

CISCO Status Cisco Expressway-C System Configuration Maintenance Edit zone Search rules not configured ThE rot the target n anv tone search h'c•u cc•rnlgure are searched and Ir. what Drear cr. the page Configuralion Name Hop count Connerlion credent•dls Username Password Accept proxied registrations ICE support CE Passthrough support Mutistream mode SIP poison mode Preloaded SIP routes support SIP parameter preservation AES GCM support SIP UPDATE tor session refresh mra-traversal Unified Communications traversal adminl 23

on expC, UC> CUCM enable ICE passthrougth

CISCO Cisco Expressway-C Status System Configuration Maintenance Unified CM servers Unified CM server lookup Unified CM publisher address Username Password TLS verity mode AES GCM support SIP UPDATE tor session refresh ICE Passthrough support cucml dcloudciscocom administrator

 

expE enables Turn 

Configuration > Traversal > TURN

CISCO Cisco Expressway-E Status TURN Server System Configuration Applications Maintenance TURN services Check TURN nonce TURN nonce expiry duration TCP 443 TURN service TURN requests pod Delegated credential checking Authentication realm Media pod range start Media pod range end 3478 TANDBERG 24000 2gggg

CUCM copies Standard Common Phone Profile

Common Phone Profile Configuration Save Status Status: Ready Common Phone Profile Information Name Description Local Phone Unlock Jabber MRA ICE Common Phone Profile for Jabber MRA ICE Password

 

Interactive Connectivity Establishment (ICE) Default Candidate Type Server Reflexive Address Primary TURN Server Host Name or IP Address Secondary TURN Server Host Name or IP Address Enabled Enabled TURN TURN TURN Server Transport. Type Server Username admin123 Server Password

 

outbound CSF，changes to use this common phone profile

Cisco unified CM Administration CISCO For Unified Communications Solutions Call Media Fesc•urcea Advanced Features Applicatic•r, l_Eer Management • None > aulk Help Phone Configuration Save 2 Apply Contig Add New Common Device Configuration Phone Button Template Common Phone Profile AAR Calling Search Space Media Resource Group List User Hold MOH Audio Source Network Hold MOH Audio Source Standard Client Services Framework Jabber MRA ICE Main-css < None > < None > < None > < None > View Details View Details

two off-premise jabber media direct through

Apply a display Filter Ca turing from ERernaI (udp and host 198.18.2.38 and host 198.18.2.39) It Viewu Go Capture Analyze Statistics Telephony Wireless Tools Lan=Q5 Len=25 Lan=Q5 Len=25 Lan=Q5 Destination 1st. 13.2. 39 1SÜ.13.2.3Ü Protocol 114 Fr ame 5. 653731 S53er„6 97363M Source 193.1ü.2.33 193.1ü.2.3s Help Length s; s; Info Binding 1 egos 1 egos 19522 19522 . 150 bytes on wire (1200 bits), 150 bytes captured :6ø), Dst: (1200 bits) on interface Ethernet Il, Src: Internet Protocol Version 4, Src: 198.18. 2.38, Dst: 198. 18.2 39 User Datagram Protocol, Src Port: 19522, Dst Port: 13426

 

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