Feb 2009 -- Due to time pressures, the ongoing development of 'rope' has been suspended temporarily.

ROPE Language Reference - "$ip_version"

This register holds the IP version number for the packet being inspected. It can (currently) be either 4 or 6.

RFC_791 describes this field in these terms..

Version:  4 bits

 The Version field indicates the format of the internet header.

Note: RFC_791 describes IP version 4 - which is fully covered by ROPE. IP Version 6 is not yet addressed by the ROPE module.

See Also

RFC_791, $ip_check, $ip_daddr, $ip_dont_frag, $ip_frag_off, $ip_id, $ip_ihl, $ip_protocol, $ip_saddr, $ip_tos, $ip_tot_len, $ip_ttl