Which protocol is unsuitable for WAN VPN connections? Access Control and Identity Management Which protocol is unsuitable for WAN VPN connections? a. PPP b. PPTP c. L2TP d. IPSec Answer: A PPP provides no security, and all activities are unsecure. PPP is primarily intended for remote connections and should never be used for VPN connections. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+