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Cisco Bug: CSCvh81931 - "switchport block multicast" blocks IPv6 RA

Last Modified

Aug 09, 2019

Products (120)

  • Cisco Catalyst 3850 Series Switches
  • Cisco Catalyst 3650-48FS-S Switch
  • Cisco Catalyst 3650-48FQM-L Switch
  • Cisco Catalyst 3850-48XS-F-S Switch
  • Cisco Catalyst 3650-48TQ-L Switch
  • Cisco Catalyst 3850-24P-L Switch
  • Cisco Catalyst 3850-24U-L Switch
  • Cisco Catalyst 3650-24TD-S Switch
  • Cisco Catalyst 3850-48P-E Switch
  • Cisco Catalyst 3850-24U-S Switch
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Known Affected Releases

3.7(5) Denali-16.3.5

Description (partial)

Symptom:
when "switchport block multicast" is conofigued, IPv6 RA will be blocked.
After removing "switchport block multicast",IPv6 RA wii be passed

Conditions:
when "switchport block multicast" is configued
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Bug Details Include

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