[vpn-help] Issues connecting to company VPN using mobile broadband

Guido 嵬 到 guido.out at aversano.org
Thu Jul 24 09:15:44 CDT 2014


Hi,

I am experiencing problems connecting to my company VPN, using the
2.2.2 client on Windows 8.1 / 32bit (imported PCF configuration), on a
mobile broadband internet connection:

14/07/24 15:19:46 -> : send IKE packet 172.20.xx.xx:500 ->
91.xx.xx.xx:500 ( 1148 bytes )
14/07/24 15:19:46 DB : phase1 resend event scheduled ( ref count = 2 )
14/07/24 15:19:51 -> : resend 1 phase1 packet(s) [0/2]
172.20.xx.xx:500 -> 91.xx.xx.xx:500
14/07/24 15:19:56 -> : resend 1 phase1 packet(s) [1/2]
172.20.xx.xx:500 -> 91.xx.xx.xx:500
14/07/24 15:20:01 -> : resend 1 phase1 packet(s) [2/2]
172.20.xx.xx:500 -> 91.xx.xx.xx:500
14/07/24 15:20:06 ii : resend limit exceeded for phase1 exchange

It looks like the client doesn't get any packet back on UDP port 500
(I also used wireshark to make sure).

The problem appears only when I am connected to the internet by this
mobile broadband connection, otherwise the VPN connection is fine. I
thought that the internet provider was filtering VPN traffic, but
using iOS Cisco VPN software embedded in my iPad I manage to connect
using the same broadband connection.
I also tried the different NAT trasversal options in the client, but
without success.

Could you please help me with this issue?
Thank you!

Regards,
Guido


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