|
-a |
Action. The value of Deny (D) will block traffic,
and the value of Permit (P) will allow traffic. |
|
-c protocol |
Protocol. The valid values are: udp, icmp, icmpv6, tcp, tcp/ack, ospf, ipip, esp, ah, and all. Value all indicates that the filter rule will apply to all the
protocols. The protocol can also be specified numerically (between 1 and
252). |
|
-d d_addr |
Destination address. It can be an IP address or a host name. If a host
name is specified, the first IP address returned by the name server for that
host will be used. This value along with the destination subnet mask will
be compared against the destination address of the IP packets. |
|
-f |
Fragmentation control. This flag specifies that this rule will apply
to either all packets (Y), fragment headers and unfragmented
packets only (H), fragments and fragment headers only
(O), or unfragmented packets only (N). |
|
-g |
Apply to source routing? Must be specified as Y (yes)
or N (No). If Y is specified,
this filter rule can apply to IP packets that use source routing. |
|
-i interface |
The name of IP interface(s) to which the filter rule applies. Examples
are: all, tr0, en0, lo0, and pp0. |
|
-l |
Log control. Must be specified as Y (yes) or N (No). If specified as Y, packets
that match this filter rule will be included in the filter log. |
|
-M d_mask |
Destination subnet mask. This will be applied to the Destination address(-d flag) when compared with the destination address of
the IP packets. |
|
-m s_mask |
Source subnet mask. This will be applied to the Source address (-s flag) when compared with the source address of the IP
packet. |
|
-n fid |
The ID of the filter rule you want to change. It must exist in the
filter rule table and for IP version 4, it cannot be 1 (rule 1 is a system
reserved rule and is unchangeable). |
|
-O d_opr |
Destination port or ICMP code operation. This is the operation that
will be used in the comparison between the destination port/ICMP code of
the packet with the destination port or ICMP code (-P flag).
The valid values are: lt, le, gt, ge, eq, neq, and any. This value must be any when the -c flag is ospf. |
|
-o s_opr |
Source port or ICMP type operation. This is the operation that will
be used in the comparison of the source port/ICMP type of the packet with
the source port or ICMP type (-p flag) specified in
this filter rule. The valid values are: lt, le, gt, ge, eq, neq, and any. The value
must be any when the -c flag is ospf. |
|
-P d_port |
Destination port/ICMP code. This is the value/code that will be compared
to the destination port (or ICMP code) of the IP packet. |
|
-p s_port |
Source port or ICMP type. This is the value/type that will be compared
to the source port (or ICMP type) of the IP packet. |
|
-r |
Routing. This specifies whether the rule will apply to forwarded packets
(R), packets destined or originated from the local
host (L), or both (B). |
|
-s s_addr |
Source address. It can be an IP address or a host name. If a host name
is specified, the first IP address returned by the name server for that host
will be used. This value along with the source subnet mask will be compared
against the source address of the IP packets. |
|
-t tid |
ID of the tunnel related to this filter rule. All the packets that
match this filter rule must go through the specified tunnel. |
|
-v |
IP version of the target filter rule. |
| -w |
Direction. This specifies whether the rule will apply to incoming packets
(I), outgoing packets (O), or
both (B). |
|
-D |
Filter description. A short description
text for the filter rule. |