Archer C7 internal switch configuration consideration

Installing and Using OpenWrt Network and Wireless Configuration
1

Hello,

This is the default internal configuration :

c7
c7977×611 82.8 KB

few questions :

  1. Can I define port1 (WAN) as VLAN1 - so to have 5 ports lan and no WAN ?
    (without deleting WAN interface in the cpu)
  2. Is it possible to use Port6( cpu eth0) as the inteface for both WAN and LAN vlans ?
    (without using port0)
  3. If I play with configurations of the switch and make a mistake can I restore to factory default ?

Thank you

2

You can move WAN to VLAN1 and see what happens, you will not break the LAN interface, and will be able to log in and reconfigure it.

3

If you do the change in Luci, after you hit the save and apply button, there will be a timer for rollback. If you break the network somehow and the PC cannot communicate with OpenWrt, the rollback will restore the previous working configuration.
I think that since you have ports connected on different ports of the CPU you cannot just assign them all in the same VLAN. What I would do is to delete the wan interface and add the eth1.2 physical interface in the lan interface along with eth0.1

4

You can leave VLAN 2 in place with only port 6 remaining attached to it. Of course a switch VLAN with only one active port can't actually pass any traffic, but it is a legal configuration.

It's a good idea to connect by wifi while doing this so even if you totally mess up the Ethernet ports you don't lose access to fix it.

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