dmbaturin / iproute2-cheatsheet Goto Github PK

Saw this list by Hangbin Liu recently which has some tunnel types not in the cheatsheet
https://developers.redhat.com/blog/2019/05/17/an-introduction-to-linux-virtual-interfaces-tunnels/
IPIP Tunnel
SIT Tunnel
ip6tnl Tunnel
VTI and VTI6
GRE and GRETAP
IP6GRE and IP6GRETAP
FOU
GUE
GENEVE
ERSPAN and IP6ERSPAN

https://serverfault.com/questions/696675/multipath-routing-in-post-3-6-kernels#

There are few results googling ip xfrm. Can you provide some examples and explanations on it?

I find an example using ip xfrm to create an ipsec tunel, but without any further explanation on the commands.

In recent Linux kernels iproute2 supports adding MACsec tunnels.
Please add those commands to the cheat sheet.

interesting future
https://lwn.net/Articles/614348/

Some time ago I created a presentation that details some of the commands offered by iproute2.

https://gbraad.gitlab.io/tools-training/slides.html#/iproute2

Have a look and tell me what you think is valuable for me to propose as pull requests.

Pages brakes articles in print.
Text out of frames some times

Thanks for a really helpful resource.
On my system
Linux nickb-Precision-M20 4.10.0-38-generic #42~16.04.1-Ubuntu SMP Tue Oct 10 16:30:51 UTC 2017 i686 i686 i686 GNU/Linux

ip tuntap del dev tap0
does not work it's actually
ip tuntap del dev tap0 mode tap

lets encrypt ssl certificate appears to have expired on Thursday, June 7, 2018 at 11:04:09 AM

Please update?

The git doesn't contain the css in your site and it looks a bit different.
can you add it please?

Newer versions of iproute2 have the -br[ief] command line switch. This should be used as the first switch immediately after the command.

Some examples:

[nick@alarmpi-2 ~]$ ip -br addr show
lo               UNKNOWN        127.0.0.1/8 ::1/128 
eth0             UP             192.0.2.1/24 2001:db8:200:84:ba27:ebff:fe68:5f03/64 fe80::ba27:ebff:fe68:5f03/64 

[nick@alarmpi-2 ~]$ ip -br  -4 addr show
lo               UNKNOWN        127.0.0.1/8 
eth0             UP             192.0.2.1/24 

[nick@alarmpi-2 ~]$ ip -br link show
lo               UNKNOWN        00:00:00:00:00:00  
eth0             UP             b8:27:eb:68:5f:03  

Makes a big improvement to the formatting for these commands in particular! I'm not sure whether this should be documented in it's own section or added to the respective sections I have used in the above examples.

Info about useful like net.ipv4.conf.all.ignore_routes_with_linkdown=1 needed

Hi,
Found a typo, patch below.
(The cheat sheet is great!)

--- index.html.orig   2015-06-10 11:13:29.777972729 +0200
+++ index.html  2015-06-10 11:13:43.770972479 +0200
@@ -780,7 +780,7 @@
           <h4>Create an IPIP tunnel</h4>
           <pre>ip tunnel add ${interface name} mode ipip local ${local endpoint address} remote ${remote endpoint address}</pre>
           <span>Examples:</span>
-          <pre>ip runnel add tun0 mode ipip local 192.0.2.1 remote 198.51.100.3</pre>
+          <pre>ip tunnel add tun0 mode ipip local 192.0.2.1 remote 198.51.100.3</pre>
           <pre>ip link set dev tun0 up</pre>
           <pre>ip address add 10.0.0.1/30 dev tun0</pre>
         </div>