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Cisco Bug: CSCuq42475 - IPv6 tunneled route rejected in the configuration if another ipv6 default route is present

Last Modified

Nov 27, 2020

Products (2)

  • Cisco Adaptive Security Appliance (ASA) Software
  • Cisco Adaptive Security Appliance (ASA) Software

Known Affected Releases

100.12(17.7) 9.1(1) 9.2(0) 9.2(1.241) 9.3(1)

Description (partial)

When trying to add a 'tunneled' IPv6 default route to the ASA configuration, the command may be rejected indicating:

ERROR: Cannot add route entry, conflict with existing routes

This issue occurs when configuring IPv6 routes on the ASA and there is already another non-tunneled static route with the same link-local next hop.
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