natipfrag <proto> <1/0>

[root@sylixos:/root]# help natipfrag      
NAT set specified protocol to support IP fragment.
protocol support: tcp udp icmp
natipfrag [proto] [1/0]
[root@sylixos:/root]# 

[root@sylixos:/apps]# natipfrag tcp 1
[root@sylixos:/apps]# nats
NAT networking alias setting >>

     ALIAS        LOCAL START     LOCAL END
--------------- --------------- ---------------

NAT networking direct map setting >>

 ASS PORT  LOCAL PORT    LOCAL IP      IP CNT   PROTO
---------- ---------- --------------- -------- -------

NAT networking summary >>
    LAN: lo0 en2 
    WAN: en1 
    Total Ass-node: 2048
    Used  Ass-node: 1
    IP Fragment: TCP-Enable UDP-Disable ICMP-Disable