I have cisco pix 501 with IOS 6.3(4). and running Cisco VPN client 4.6.04.config is IPSEC over UDP I have a linksys router behind which the pix sits, I have forwarded UDP port 4500, 500, 10000, 50 to the pix. for some reason the vpn client connects from some internet connections and from some it does not and I do not get any error messages.
I have attached the log file from the vpn client, when it was not connecting. Thanks for the help.
MC
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1 23:42:27.997 12/14/06 Sev=Info/6 IKE/0x6300003B Attempting to establish a connection with 71.78.123.220.2 23:42:28.017 12/14/06 Sev=Info/4 IKE/0x63000013 SENDING >>> ISAKMP OAK AG (SA, KE, NON, ID, VID(Xauth), VID(dpd), VID(Nat-T), VID(Frag), VID(Unity)) to 71.78.123.220
3 23:42:28.037 12/14/06 Sev=Info/4 IPSEC/0x63700008 IPSec driver successfully started4 23:42:28.037 12/14/06 Sev=Info/4 IPSEC/0x63700014 Deleted all keys
5 23:42:33.034 12/14/06 Sev=Info/4 IKE/0x63000021 Retransmitting last packet!6 23:42:33.034 12/14/06 Sev=Info/4 IKE/0x63000013 SENDING >>> ISAKMP OAK AG (Retransmission) to 71.78.123.220
7 23:42:38.041 12/14/06 Sev=Info/4 IKE/0x63000021 Retransmitting last packet!8 23:42:38.041 12/14/06 Sev=Info/4 IKE/0x63000013 SENDING >>> ISAKMP OAK AG (Retransmission) to 71.78.123.220
9 23:42:43.048 12/14/06 Sev=Info/4 IKE/0x63000021 Retransmitting last packet!10 23:42:43.048 12/14/06 Sev=Info/4 IKE/0x63000013 SENDING >>> ISAKMP OAK AG (Retransmission) to 71.78.123.220
11 23:42:48.055 12/14/06 Sev=Info/4 IKE/0x63000017 Marking IKE SA for deletion (I_Cookie=7C22991E7FF28FA8 R_Cookie=0000000000000000) reason = DEL_REASON_PEER_NOT_RESPONDING12 23:42:48.556 12/14/06 Sev=Info/4 IKE/0x6300004B Discarding IKE SA negotiation (I_Cookie=7C22991E7FF28FA8 R_Cookie=0000000000000000) reason = DEL_REASON_PEER_NOT_RESPONDING
13 23:42:48.596 12/14/06 Sev=Info/4 IKE/0x63000001 IKE received signal to terminate VPN connection14 23:42:48.626 12/14/06 Sev=Info/4 IKE/0x63000086 Microsoft IPSec Policy Agent service started successfully
15 23:42:49.067 12/14/06 Sev=Info/4 IPSEC/0x63700014 Deleted all keys16 23:42:49.067 12/14/06 Sev=Info/4 IPSEC/0x63700014 Deleted all keys
17 23:42:49.067 12/14/06 Sev=Info/4 IPSEC/0x63700014 Deleted all keys18 23:42:49.067 12/14/06 Sev=Info/4 IPSEC/0x6370000A IPSec driver successfully stopped
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