Include IPTables Multiport module which can be commonly found at Debian and Ubuntu. Official info at: https://github.com/torvalds/linux/blob/master/net/netfilter/Kconfig
More information:
https://cateee.net/lkddb/web-lkddb/NETFILTER_ADVANCED.html
https://cateee.net/lkddb/web-lkddb/NETFILTER_XT_MATCH_MULTIPORT.html
CONFIG_IPV6_VTI=y
CONFIG_IPV6_MULTIPLE_TABLES=y
CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
CONFIG_NF_CONNTRACK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NETFILTER_XT_MATCH_LIMIT=y
CONFIG_NETFILTER_XT_MATCH_MAC=y
CONFIG_NETFILTER_XT_MATCH_MARK=y
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_PKTTYPE=y
CONFIG_NETFILTER_XT_MATCH_QTAGUID=y