International Datacasting SuperFlex SFX2100 Series, Руководство пользователя

Страница: 81 / 184

S R A / S F X 2 1 0 0 S E R I E S S A T E L L I T E R E C E I V E R
75
Edit Field Description
Action Select an action to be taken for source address translation. The
two selections are:
SNAT – replace Original Source IP/port with New Source IP/Port
and continue processing the packet.
MASQ – Masquerade – replace Original Source IP with the IP
address of the network interface where the IP packet is output.
NOTE: A new Port number is selected by the receiver.
Options This field is available for “power users”, who wish to enter
additional
iptables options. Care must be taken in doing so, and
order may matter on entry of options. Some combinations may
not be possible. Consult the Linux
iptables manual or tutorial for
more information.
In addition to the edit fields there are four table row manipulation keys:
Key Description
Add Add the entered information above the table to the table as the
last row.
Remove Delete the selected (highlighted) row.
Up If there is more than one row in the table, move the selected row
up one row.
Down If there is more than one row in the table, move the selected row
down one row.
NOTE :
New
SNAT rules
committed to the
table (when
Send Update is
pressed) may not
take immediate
effect if the
applicable IP
data stream is in
progress. A
suitable period of
no data activity
for that IP stream
(as determined
by Linux) may
need to take
place first before
the new rule
applies.