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Cisco Bug: CSCur17706 - SIP Stack uses incorrect local address and ports when performing failover

Last Modified

Jan 02, 2018

Products (1)

  • Cisco TelePresence Server

Known Affected Releases


Description (partial)

In a mixed IPv4/IPv6 environment, a TelePresence Server may attempt to make use of an IPv4 address to contact an endpoint, even if IPv4 is not enabled on the unit. This will result in call failure.

*Mixed IPv4/v6 network.
*TS configured for IPv6 only
*DNS SRV set up serving both address types
*TS set to call direct with a DNS lookup URI
*DNS result returns IPv4 address ahead of IPv6 address
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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