On Wed, 9 Aug 2017, Akshat Kakkar wrote: > my ipset version is 6.32. OS is CentOS 7.3. Kernel is 3.10 > > when I execute following command, > > ipset create foo hash:ip skbinfo > > I get error as > > ipset v6.32: Unknown argument: `skbinfo' It means that the kernel module does not support the skbinfo extension. What is revision in description line in the output of `modinfo ip_set_hash_ip`? It should be 0-4 for skbinfo support. 0-3 or less means no skbinfo support in the kernel side. Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlecsik.jozsef@xxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : Wigner Research Centre for Physics, Hungarian Academy of Sciences H-1525 Budapest 114, POB. 49, Hungary -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html