. ${DIR}/tun_aesgcm_defs.sh
-SGW_CFG_XPRM_IN='port_id 0 type inline-crypto-offload fallback lookaside-none'
+if [[ -z "${CRYPTO_FLBK_TYPE}" ]]; then
+ CRYPTO_FLBK_TYPE="fallback lookaside-none"
+fi
+
+SGW_CFG_XPRM_IN="port_id 0 type inline-crypto-offload ${CRYPTO_FLBK_TYPE}"