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Cisco Bug: CSCus67718 - FTP Client fails to get connection closed by remote host with BtB NAT HA

Last Modified

Mar 08, 2018

Products (98)

  • Cisco IOS
  • Cisco 861W Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco C897VA Integrated Services Router
  • Cisco 898 Secure G.SHDSL EFM/ATM with Multi-Mode 4G LTE ISR Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 812 CiFi Integrated Services Router
  • Cisco 2951 Integrated Services Router
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Known Affected Releases

15.3(3)M4 15.5(1)T

Description (partial)

Symptom:
FTP Client fails to get due to connection closed by remote host with BtoB NAT HA

Conditions:
After failover BtoB NAT HA,  FTP Port 21 deletes from NAT Table

Pro Inside global      Inside local       Outside local      Outside global
tcp 192.168.56.31:53068 192.168.71.186:53068 192.168.56.246:21  192.168.56.246:21
--- 192.168.56.31       192.168.71.186      ---                ---
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Bug Details Include

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