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Cisco Bug: CSCtc98097 - Cable modem drops 5505/SSC packets due to invalid source MAC address..

Last Modified

Nov 09, 2016

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases


Description (partial)

When a 5505/SSC operating in promiscuous mode  and a cable modem
is placed on the outside interface, all the outbound packets are dropped by the cable modem
because source MAC address inside each packet is the internal 5505/SSC's backplane
MAC address. 
Always if cable modem is locked into the 5505's outside interface MAC address
and 5505/SSC is operating in promiscuous mode.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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