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add log line for oddly small ignored packets
[rrq/rrqnet.git]
/
rrqnet-ifupdown.sh.8.adoc
diff --git
a/rrqnet-ifupdown.sh.8.adoc
b/rrqnet-ifupdown.sh.8.adoc
index 1b83f841455b17f2edfd424aa83a15c37bb2aa7a..a922977223b18df3cba30524f0a55b610e4ec9f3 100644
(file)
--- a/
rrqnet-ifupdown.sh.8.adoc
+++ b/
rrqnet-ifupdown.sh.8.adoc
@@
-55,7
+55,9
@@
configuration options ([-4] [-B n] [-T n] [-m mcast]). Refer to the
This IFACE option is used for declaring the log level as one of +-v+,
+-vv+ or +-vvv+, and to nominate the log file. If omitted, all the
This IFACE option is used for declaring the log level as one of +-v+,
+-vv+ or +-vvv+, and to nominate the log file. If omitted, all the
-+rrqnet+ process output will be directed to +/dev/null+.
++rrqnet+ process output will be directed to +/dev/null+. If
+__pathname_ is of the form "facility.priority", then stderr is sent to
++syslog+. Otherwise, stderr is appended to the nominated file.
*rrqnet_bridge* _bridge_::
*rrqnet_bridge* _bridge_::
@@
-74,7
+76,7
@@
iface mynet0 inet static
address 10.0.0.2/24
broadcast 10.0.0.255
rrqnet_port 3636
address 10.0.0.2/24
broadcast 10.0.0.255
rrqnet_port 3636
- rrqnet_options -4
+ rrqnet_options -4
-B 10 -T 1
rrqnet_remote 111.222.333.444:3636=/sec/mynet.key
rrqnet_log -v /var/log/mynet0.log
----
rrqnet_remote 111.222.333.444:3636=/sec/mynet.key
rrqnet_log -v /var/log/mynet0.log
----
@@
-86,7
+88,7
@@
the local +tap+, named +mynet0+, has ipv4 address +10.0.0.2+. The
cabling set up which then is duly handled by +rrqnet-ifupdown.sh+, and
all its options are used for declaring that tunneling. The
+rrqnet_options+ in the example tells the +rrqnet+ process to use an
cabling set up which then is duly handled by +rrqnet-ifupdown.sh+, and
all its options are used for declaring that tunneling. The
+rrqnet_options+ in the example tells the +rrqnet+ process to use an
-ipv4-only socket.
+ipv4-only socket
, 10 packet buffers and a single delivery thread
.
NOTES
-----
NOTES
-----
@@
-99,18
+101,18
@@
supervision.
Note that the +rrqnet+ virtual cable requires real networking for its
UDP tunnel traffic. The real packets will have a UDP header in
addition to the orignal packet, which means that it grows packets with
Note that the +rrqnet+ virtual cable requires real networking for its
UDP tunnel traffic. The real packets will have a UDP header in
addition to the orignal packet, which means that it grows packets with
-24 or 48 bytes (for ipv4 and ipv6 respectively). This may cause packet
-fragmentation of the tunneling packets unless the associated +tap+ is
-
configured with that much smaller MTU than the real traffic
.
+some 28/48 (ipv4/6) bytes. This may cause packet fragmentation of the
+tunneling packets which might be mitigated by configuring the
+
associated +tap+ that much smaller MTU
.
SEE ALSO
--------
SEE ALSO
--------
- *interfaces(5)* - network interface configuration for ifup and ifdown
- *rrqnet(8)* - packet tunneling over UDP, multiple channels
*brctl(8)* - ethernet bridge administration
*daemon(1)* - turns other processes into daemons
*brctl(8)* - ethernet bridge administration
*daemon(1)* - turns other processes into daemons
-
+ *interfaces(5)* - network interface configuration for ifup and ifdown
+ *rrqnet(8)* - packet tunneling over UDP, multiple channels
+
AUTHOR
------
Ralph Rönnquist <ralph.ronnquist@gmail.com>
AUTHOR
------
Ralph Rönnquist <ralph.ronnquist@gmail.com>