ipProtocol

The IP protocol name (tcp, udp, icmp) or number (see Protocol Numbers). To specify icmpv6, use a set of IP permissions.

Use -1 to specify all protocols. If you specify -1 or a protocol other than tcp, udp, or icmp, traffic on all ports is allowed, regardless of any ports you specify.

Alternatively, use a set of IP permissions to specify multiple rules and a description for the rule.