while [ $# -gt 1 ]; do
# special parameter handling
case "$1:$2" in
- -p:icmp*|--protocol:icmp*)
+ -p:icmp*|-p:1|-p:58|--protocol:icmp*|--protocol:1|--protocol:58)
[ "$app" = ip6tables ] && \
cmdline="$cmdline -p icmpv6" || \
cmdline="$cmdline -p icmp"