esp tunnel from 3ffe::1 to 3ffe::2 spi 0xdeadbeef auth hmac-sha2-256 enc aes \
	authkey 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \
	enckey 0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
esp tunnel from 3ffe::2 to 3ffe::1 spi 0xbeefdead auth hmac-sha2-256 enc aes \
	authkey 0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa \
	enckey 0xeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee