Cisco Cisco Expressway Maintenance Manual
What’s New in This Version?
X8.7.2 is a maintenance release. No new features are introduced.
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CiscoSSL has been upgraded to version 5.4.3 in this version of Expressway. This version of Cisco SSL rejects
keys with fewer than 1024 bits when doing Diffie-Hellman (DH) key exchange.
keys with fewer than 1024 bits when doing Diffie-Hellman (DH) key exchange.
Note:
This Expressway upgrade prevents SSL interoperability with versions 9.x and earlier of Cisco Unified
Communications Manager and Cisco Unified Communications Manager IM and Presence Service, because
those products generate 768 bit keys for D-H key exchange.
those products generate 768 bit keys for D-H key exchange.
Suggested workaround: Upgrade Cisco Unified Communications Manager and Cisco Unified Communications
Manager IM and Presence Service to the latest version of 10.x or 11.x.
Manager IM and Presence Service to the latest version of 10.x or 11.x.
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Cisco Expressway Administrator Guide
Introduction