docs/73638: Clarify syntax for use of tables with ipfw

[Mark Rowlands]

>Number:         73638
>Category:       docs
>Synopsis:       Clarify syntax for use of tables with ipfw
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Nov 07 10:10:26 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Mark Rowlands
>Release:        4-10
>Organization:
Qbranch AB
>Environment:
FreeBSD pcmarpxy.mine.nu 4.10-STABLE FreeBSD 4.10-STABLE #1: Wed Oct  6 21:27:47 CEST 2004     root at pcmarpxy.mine.nu:/usr/obj/web1/src/sys/MARK  i386
     
>Description:
man 8 ipfw describes syntax for table use in ipfw like this:-

addr: [not] {any | me | table(number[,value]) | addr-list | addr-set}
..
table(number[,value])

Running under bash / sh / csh 
ipfw add 2 deny ip from table(1) to me in via xl1 generates a syntax error. 

the table(x,y) entry seems to require quotes under most shells.

I feel the man page should indicate this
>How-To-Repeat:
sh# ipfw add 201 deny ip from any to table(2) in via xl1
Syntax error: "(" unexpected

csh# ipfw add 201 deny ip from any to table(2) in via xl1
Badly placed ()'s.

bash# ipfw add 201 deny ip from any to table(2) in via xl1
Syntax error: "(" unexpected
  
>Fix:
Add warning to man page that "table(x,y)" may well be required
dependant on particular shell...   
>Release-Note:
>Audit-Trail:
>Unformatted: