GRE over IPsec 实验

GRE over IPsec 实验 配置思路： 一、创建IKE提议 [ar1]ike proposal 1 [ar1-ike-proposal-1]encryption-algorithm 3des-cbc [ar1-ike-proposal-1]authentication-algorithm md5 //默认 [ar1-ike-proposal-1]authentication-method

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