OUTPUT chain...

[Henrik Nordstrom]

different tables. The first is on the "filter" table, the second on the
"nat" table.

When you do not specify a -t argument to iptables it is assumed you want
to work with the "filter" table.

The "nat" table is kind of special, only used for managing NAT rules.

There are a number of other tables available in iptables, but for most
normal uses you only need to care about three tables
* "filter", for packet filtering
* "mangle", for mangling packets (setting nfmark and some other options.
nfmark is used by "Advanced routing" and some other features in the
kernel)
* "nat", for NAT rules.

--
Henrik Nordstrom
MARA Systems


Adrien Corbiere wrote:

>     Hello,
>
>     What is the difference between the OUTPUT chain
> in iptables -nvL and those in iptables -t nat -nvL ?
>
> Thanks.
> --
> Adrien Corbiere
> Service Informatique
> NSK Technologies.