1TO = "{ 1.1.1.1, 2.2.2.2, 3.3.3.3 }" 2flow esp out from 4.4.4.4 to 1.1.1.1 peer 1.1.1.1 type require 3flow esp in from 1.1.1.1 to 4.4.4.4 peer 1.1.1.1 type require 4flow esp out from 4.4.4.4 to 2.2.2.2 peer 2.2.2.2 type require 5flow esp in from 2.2.2.2 to 4.4.4.4 peer 2.2.2.2 type require 6flow esp out from 4.4.4.4 to 3.3.3.3 peer 3.3.3.3 type require 7flow esp in from 3.3.3.3 to 4.4.4.4 peer 3.3.3.3 type require 8