misc/103328: sugestions about ipfw table

[João Rocha Braga Filho]

>Number:         103328
>Category:       misc
>Synopsis:       sugestions about ipfw table
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Sun Sep 17 15:40:23 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     João Rocha Braga Filho
>Release:        6.1
>Organization:
Paratyinfo
>Environment:
>Description:
Why not a struct? Something like this:

tablearg
tablearg_2
tablearg_MAC_1
tablearg_MAC_2
tablearg_IP_2

It can be used like this:

ipfw pipe 110 config mask src-ip 0xffffffff bw  64Kbit/s queue 10Kbytes
ipfw pipe 112 config mask src-ip 0xffffffff bw 256Kbit/s queue 40Kbytes
ipfw pipe 210 config mask dst-ip 0xffffffff bw  64Kbit/s queue 10Kbytes
ipfw pipe 212 config mask dst-ip 0xffffffff bw 256Kbit/s queue 40Kbytes
           ...
ipfw table 1 add 192.168.2.2 110 210 00:01:02:03:04:05
ipfw table 1 add 192.168.0.2 112 212 00:03:04:05:06:07
           ...
ipfw add pipe tablearg ip from table(1) to any   MAC any tablearg_MAC_1
ipfw add pipe tablearg_2 ip from any to table(1) MAC tablearg_MAC_1 any
           ...
ipfw add deny ip from any to any

It can help against spoofing IPs and limiting traffic.

thanks,
    João Rocha.

>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: