Match on IPv6 routing header
.TP
.BI "--rt-type " "[!]" "type"
Match the type (numeric).
.TP
.BI "--rt-segsleft" "[!]" "num[:num]"
Match the `segments left' field (range).
.TP
.BI "--rt-len" "[!]" "length"
Match the length of this header
.TP
.BI "--rt-0-res"
Match the reserved field, too (type=0)
.TP
.BI "--rt-0-addrs ADDR[,ADDR...]
Match type=0 addresses (list).
.TP
.BI "--rt-0-not-strict"
List of type=0 addresses is not a strict list.