esp tunnel from 1.1.1.1 to 2.2.2.2 spi 0xdeadbeef auth hmac-sha1 enc aes \
	authkey 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \
	enckey 0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
esp tunnel from 2.2.2.2 to 1.1.1.1 spi 0xbeefdead auth hmac-sha1 enc aes \
	authkey 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \
	enckey 0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee