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GPRS Hardware compatibility with VPN Client - Sierra AirCard 750

Hello,

Prior to testing the below configuration, a Nokia GPRS Phone connected via bluetooth to the Client works fine using the same VPN Client Connection Entry

Client OS = Windows 2000, with latest Service Pack 3

Client VPN Version = 4.0.2 (A)

VPNC 3060 version = 4.0

Client Hardware = Sierra AirCard 750 (using latest win2k drivers)

It has been noticed that when this card connects to GPRS, its creates a new "Local Area Network" connection which it passes traffic through (private address is assigned by GPRS-provider (o2), therefore IPSEC thru NAT has been accounted for) When the VPN connection is attempted, the following log is displayed on the VPNc3060

331 06/25/2003 12:56:00.370 SEV=5 IKE/0 RPT=39

Could not find centry for IPSec SA delete message

332 06/25/2003 12:56:05.650 SEV=8 IKEDBG/0 RPT=39058 193.113.235.168

RECEIVED Message (msgid=925b87cf) with payloads :

HDR + HASH (8) + NOTIFY (11) + NONE (0)

total length : 80

334 06/25/2003 12:56:05.650 SEV=9 IKEDBG/0 RPT=39059 193.113.235.168

Group [DSN_test] User [nathan]

processing hash

335 06/25/2003 12:56:05.650 SEV=9 IKEDBG/0 RPT=39060 193.113.235.168

Group [DSN_test] User [nathan]

Processing Notify payload

336 06/25/2003 12:56:05.650 SEV=9 IKEDBG/41 RPT=45 193.113.235.168

Group [DSN_test] User [nathan]

Received keep-alive of type DPD R-U-THERE, not the negotiated type

338 06/25/2003 12:56:10.150 SEV=8 IKEDBG/0 RPT=39061 193.113.235.168

RECEIVED Message (msgid=4d3f2385) with payloads :

HDR + HASH (8) + NOTIFY (11) + NONE (0)

total length : 80

340 06/25/2003 12:56:10.150 SEV=9 IKEDBG/0 RPT=39062 193.113.235.168

Group [DSN_test] User [nathan]

processing hash

341 06/25/2003 12:56:10.150 SEV=9 IKEDBG/0 RPT=39063 193.113.235.168

Group [DSN_test] User [nathan]

Processing Notify payload

342 06/25/2003 12:56:10.150 SEV=9 IKEDBG/41 RPT=46 193.113.235.168

Group [DSN_test] User [nathan]

Received keep-alive of type DPD R-U-THERE, not the negotiated type

This occurs AFTER user authentication has been (correctly) entered and authenticated.

Any ideas why this doesn't establish a VPN tunnel ??

Regards

Nathan O'Hare

1 REPLY
Bronze

Re: GPRS Hardware compatibility with VPN Client - Sierra AirCard

I notice that all the GPRS client connections use IPSEC over TCP. Have you had a chance to test IPSEC over UDP or NAT-T with these connections?

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