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Cisco Bug: CSCzv59174 - Link-local IPv6 addresses (fe80::/10) configurable, but not useable ...

Last Modified

Feb 22, 2018

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases


Description (partial)

when configuring a link-local IPv6 address (fe80::/10) on an IPv6 interface, the configuration is accepted. However, when a Listener is configured to use this IP Interface with a link-local address, the Listener rejects all SMTP requests with a RST packet.

Email Security Appliance with AsyncOS 7.6 and above with IPv6 link-local address configuration
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