ESP Packet authentication failed

[pemelin]

I have a VPN between a 3005 and a 831-router.Several times/hour the traffic flow halts some seconds over the VPN, and the log in the VPN3005 shows the entry added bellow. Doing different debugs in the 831-router doesnt show anything. The tunnel stays open all the time. The 831 is connected with a SDSL-link and configured with PPPoE and dynamic pub address.

--Log Entry--

3944 04/28/2004 14:25:30.490 SEV=4 IPSEC/4 RPT=200

IPSec ESP Tunnel Inb: Packet authentication failed, username: XXXXXX, SPI: 7701b64d, Seq Num: 00001ef0. Dump of failed hash follows.

--

Anybody got a clue?

/Peter

[pemelin]

I exchanged the VPN3005 with a 831-router, so now it's a VPN between two 831's.

The problem is still there and the log of the new 831 tells the following:

--Log entry--

Apr 29 11:24:16.130: %HIFN79XX-1-ERROR: chifn79xx_crypto_callback() toolkit return failure

Apr 29 11:24:16.138: %HIFN79XX-1-PKTENGRET_ERROR: Hifn79xx PktEng Return Value = 0x20000, Hifn79xx_PktEngReturn_MACMiscompare.

---

Anyone?

Peter

[pemelin]

I found a solution, through disabling the crypto engine accelerator in the 831-router:

No more interrupts or logging entries!!!

Peter