Difference between revisions of "NMCLI"

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==Policy Based Routing==
 
==Policy Based Routing==
 
===Return traffic on interface it came in on===
 
===Return traffic on interface it came in on===
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Could not figure out using network manager because I am too depressed as of this writing to care. Ended up getting it working with ip commands and startup scripts.
 
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*Create rule file, in my case it was /etc/sysconfig/network-scripts/rule-eth3
 
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**Add routes to the rule file. This will state that the interface subnet is reachable on the interface using the table specified.
 
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**Default route on the interface for the table, then anything coming in on that interface hits that table instead of the main table.
 
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**Make sure to add the rule that anything coming from the interface address also goes to that table.
 
 
<pre>
 
<pre>
−
***.***.***.***/** dev eth3 table 2
+
set ipv4.routes 0.0.0.0/1 <gateway> table=2
−
default via ***.***.***.*** dev eth3 table 2
+
set ipv4.routes 128.0.0.0/1 <gateway> table=2
−
iif eth3 table 2
+
set ipv4.routing-rules priority 100 to <int IP>/<prefix dev eth3 table 2
−
from ***.***.***.*** table 2
+
set ipv4.routing-rules priority 101 iif eth3 table 2
 +
set ipv4.routing-rules priority 103 from <int IP> table 2
 
</pre>
 
</pre>
  

Revision as of 13:04, 28 August 2021

Policy Based Routing

Return traffic on interface it came in on

set ipv4.routes 0.0.0.0/1 <gateway> table=2
set ipv4.routes 128.0.0.0/1 <gateway> table=2
set ipv4.routing-rules priority 100 to <int IP>/<prefix dev eth3 table 2
set ipv4.routing-rules priority 101 iif eth3 table 2
set ipv4.routing-rules priority 103 from <int IP> table 2

Create Bridge Interface

[1] 

[root@natasha ~]# nmcli con add type bridge ifname br0
[root@natasha ~]# nmcli con add type bridge-slave ifname eno1 master br0
[root@natasha ~]# nmcli con edit bridge-br0
nmcli> set ipv4.addresses 192.168.11.120/24
nmcli> set ipv4.gateway 192.168.11.1
nmcli> save
nmcli> quit
[root@natasha ~]# nmcli con up br0
  1. ↑ https://www.cyberciti.biz/faq/how-to-add-network-bridge-with-nmcli-networkmanager-on-linux/
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