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Cisco Bug: CSCtc42163 - VAM2+ IPSECcard: an error coming back 0x0004

Last Modified

Feb 22, 2018

Products (38)

  • Cisco 7300 Series Routers
  • Cisco 878 Integrated Services Router
  • Cisco VG224 Analog Voice Gateway
  • Cisco 1812 Integrated Services Router
  • Cisco 1803 Integrated Services Router
  • Cisco AS5400XM Universal Gateway
  • Cisco Catalyst 6500 Series Communication Media Module
  • Cisco 7206 Router
  • Cisco 7301 Router
  • Cisco AS5350XM Universal Gateway
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Known Affected Releases

12.4(11)T2 12.4(15)T9 12.4(24)T1

Description (partial)

Symptom:

The following errors may be seen 

Sep  8 13:36:04.644: IPSECcard: an error coming back 0x0004
Sep  8 13:36:08.104: IPSECcard: an error coming back 0x0004
Sep  8 13:36:14.640: IPSECcard: an error coming back 0x0004
Sep  8 13:36:18.104: IPSECcard: an error coming back 0x0004
Sep  8 13:36:24.668: %CRYPTO-4-RECVD_PKT_MAC_ERR: decrypt: mac verify 
failed for connection id=3071 local=192.168.134.193 remote=21
Sep 11 17:17:45.633: IPSECcard: an error coming back 0x0004
Sep 11 17:17:55.633: IPSECcard: an error coming back 0x0004
Sep 11 17:19:15.593: IPSECcard: an error coming back 0x0004
Sep 11 17:19:25.593: IPSECcard: an error coming back 0x0004
Sep 11 17:20:45.601: IPSECcard: an error coming back 0x0004
Sep 11 17:20:55.597: IPSECcard: an error coming back 0x0004
Sep 11 17:22:15.576: %VPN_HW-1-PACKET_ERROR: slot: 1 Packet Encryption/Decryption error, Bad function code, handle=0x543C

Crypto packets may not be processed properly when the above errors are seen
Conditions:

7301 Router with VAM2+ card installed
size of the HMAC operation is for some reason zero and the IPSECcard does not expect a zero
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Bug Details Include

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