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socat-tun.html: not TCP but UDP

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Gerhard Rieger 2023-06-12 20:51:16 +02:00
parent 5033ec1ffd
commit 2bd2a04151
2 changed files with 6 additions and 2 deletions
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@ -71,6 +71,10 @@ Porting:
Small correction in configure.ac makes Socat C99 able.
Thanks to Florian Weimer from Red Hat for provinding a patch.
Documentation:
socat-tun.html described TCP as tunnel medium but this does not keep
packet boundaries. Changed to UDP.
Testing:
Idea: EXEC,SYSTEM addresses can keep packet boundaries when option
socktype=<val-of-SOCK_DGRAM>

4
doc/socat-tun.html
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@ -53,14 +53,14 @@ the two socat instances; the TUN interfaces both have the same quality.
<h3>TUN Server</h3>
<span class="frame"><span class="shell">socat -d -d TCP-LISTEN:11443,reuseaddr TUN:192.168.255.1/24,up</span></span>
<span class="frame"><span class="shell">socat -d -d UDP-LISTEN:11443,reuseaddr TUN:192.168.255.1/24,up</span></span>
<p>After starting this command, socat will wait for a connection and then
create a TUN pseudo network device with address 192.168.255.1; the bit number
specifies the mask of the network that is pretended to be connected on this
interface.</p>
<h3>TUN Client</h3>
<span class="frame"><span class="shell">socat TCP:1.2.3.4:11443 TUN:192.168.255.2/24,up</span></span>
<span class="frame"><span class="shell">socat UDP:1.2.3.4:11443 TUN:192.168.255.2/24,up</span></span>
<p>This command should establish a connection to the server and create the TUN
device on the client.</p>