SHOREWALL6-TCINTERF(5) | Configuration Files | SHOREWALL6-TCINTERF(5) |
NAME¶
tcinterfaces - Shorewall6 fileSYNOPSIS¶
/etc/shorewall6/tcinterfaces
DESCRIPTION¶
This file lists the interfaces that are subject to simple traffic shaping. Simple traffic shaping is enabled by setting TC_ENABLED=Simple in shorewall6.conf[1](5). A note on the bandwidth definition used in this file:•don't use a space between the integer value and
the unit: 30kbit is valid while 30 kbit is not.
•you can use one of the following units:
kbps
Kilobytes per second.
mbps
Megabytes per second.
kbit
Kilobits per second.
mbit
Megabits per second.
bps or number
Bytes per second.
k or kb
Kilo bytes.
m or mb
Megabytes.
•Only whole integers are allowed.
The columns in the file are as follows (where the column name is followed by a
different name in parentheses, the different name is used in the alternate
specification syntax).
INTERFACE
The logical name of an interface. If you run both IPv4
and IPv6 Shorewall firewalls, a given interface should only be listed in one
of the two configurations.
TYPE - [external|internal]
Optional. If given specifies whether the interface is
external (facing toward the Internet) or internal (facing toward
a local network) and enables SFQ flow classification.
IN-BANDWIDTH (in_bandwidth) -
{-|bandwidth[:burst]|~bandwidth[:
interval:decay_interval]}
The incoming bandwidth of that interface. Please
note that you are not able to do traffic shaping on incoming traffic, as the
traffic is already received before you could do so. But this allows you to
define the maximum traffic allowed for this interface in total, if the rate is
exceeded, the packets are dropped. You want this mainly if you have a DSL or
Cable connection to avoid queuing at your providers side.
If you don't want any traffic to be dropped, set this to a value to zero in
which case Shorewall will not create an ingress qdisc. Must be set to zero if
the REDIRECTED INTERFACES column is non-empty.
The optional burst option was added in Shorewall 4.4.18. The default
burst is 10kb. A larger burst can help make the bandwidth
more accurate; often for fast lines, the enforced rate is well below the
specified bandwidth.
What is described above creates a rate/burst policing filter. Beginning with
Shorewall 4.4.25, a rate-estimated policing filter may be configured instead.
Rate-estimated filters should be used with Ethernet adapters that have Generic
Receive Offload enabled by default. See Shorewall FAQ 97a[2].
To create a rate-estimated filter, precede the bandwidth with a tilde
("~"). The optional interval and decay_interval determine how often
the rate is estimated and how many samples are retained for estimating. Please
see http://ace-host.stuart.id.au/russell/files/tc/doc/estimators.txt
for details.
OUT-BANDWIDTH (out_bandwidth) - [
rate[:[burst][:[latency][:[
peek][:[minburst]]]]]]
Added in Shorewall 4.4.13. The terms are defined in
tc-tbf(8).
Shorewall provides defaults as follows:
burst - 10kb
latency - 200ms
The remaining options are defaulted by tc(8).FILES¶
/etc/shorewall6/tcinterfaces.SEE ALSO¶
http://ace-host.stuart.id.au/russell/files/tc/doc/sch_tbf.txt http://ace-host.stuart.id.au/russell/files/tc/doc/estimators.txt shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5), shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-maclist(5), shorewall6-netmap(5),shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5), shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5), shorewall6-secmarks(5), shorewall6-tcpri, shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)NOTES¶
- 1.
- shorewall6.conf
- 2.
- Shorewall FAQ 97a
10/19/2014 | Configuration Files |