NETGEAR FWG114P v2 Testing and Troubleshooting, Additional Reading, Vpnc IKE Phase II Parameters

Reference Manual for the ProSafe Wireless 802.11g Firewall/Print Server Model FWG114P v2

VPNC IKE Phase II Parameters

The IKE Phase 2 parameters used in Scenario 1 are:

•TripleDES

•SHA-1

•ESP tunnel mode

•MODP group 1

•Perfect forward secrecy for rekeying

•SA lifetime of 28800 seconds (one hour)

Testing and Troubleshooting

Once you have completed the VPN configuration steps you can use PCs, located behind each of the gateways, to ping various addresses on the LAN side of the other gateway.

You can troubleshoot connections using the VPN status and log details on the NETGEAR gateway to determine if IKE negotiation is working. Common problems encountered in setting up VPNs include:

•Parameters may be configured differently on Gateway A vs. Gateway B.

•Two LANs set up with similar or overlapping addressing schemes.

•So many required configuration parameters mean errors such as mistyped information or mismatched parameter selections on either side are more likely to happen.

Additional Reading

•Building and Managing Virtual Private Networks, Dave Kosiur, Wiley & Sons; ISBN: 0471295264

•Firewalls and Internet Security: Repelling the Wily Hacker, William R. Cheswick and Steven

M. Bellovin, Addison-Wesley; ISBN: 0201633574

•VPNs A Beginners Guide, John Mains, McGraw Hill; ISBN: 0072191813

•[FF98] Floyd, S., and Fall, K., Promoting the Use of End-to-End Congestion Control in the Internet. IEEE/ACM Transactions on Networking, August 1999.

Relevant RFCs listed numerically:

Virtual Private Networking F-11

201-10301-02, May 2005