Archer C7 V5 with OpenWrt 19.07.2 but no CPU eth1 anymore?

Installing and Using OpenWrt
1

hi people,

yesterday I bought a new Archer C7 V5 - and I installed OpenWRT 19.07.2 - so far so good. Unfortunately I do not have any CPU eth1 anymore?

Is this new or is something wrong with installation?

The reason why I ask is that I should have a trunked port to a Sophos UTM Firewall - and I would like to connect my Internet Router to WAN and therefore put a trunked port on any other port of the Archer together with trunked VLAN 1?

Thanks in advance, bhubert

2

Hi, I am just having both CPUs on archer c7v2. V5 does not show them.

3

What is the default contents of /etc/config/network for this device?

4

hi
this is the output of the network

config interface 'loopback'
        option ifname 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option ula_prefix 'fd07:2db0:1de3::/48'

config interface 'lan'
        option type 'bridge'
        option ifname 'eth0.1'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config interface 'wan'
        option ifname 'eth0.2'
        option proto 'dhcp'

config device 'wan_eth0_2_dev'
        option name 'eth0.2'
        option macaddr '1c:3b:f3:4f:e9:3e'

config interface 'wan6'
        option ifname 'eth0.2'
        option proto 'dhcpv6'

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '1'

config switch_vlan
        option device 'switch0'
        option vlan '1'
        option ports '2 3 4 5 0t'

config switch_vlan
        option device 'switch0'
        option vlan '2'
        option ports '1 0t'

as far as I can identify everything runs over eth0 now?
thanks in advance
regards, bhubert

5

The v5 has only one cpu port connected to the switch.
But you can do everything with that single cpu port which is possible with a device with two cpu ports.
Only disadvantage is the theoretical lower throughput on routet connections.

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6

hi juppin,

ok great - thanks for this information. I was just a bit irritated because all other Archers I have have two CPU :slight_smile:

so when it comes to VLAN - do I have to tag all VLANs on the CPU too?

thanks, bhubert

7

Yes, you only have one port connecting the CPU to the switch, you need to tag all traffic to be able to distinguish it.

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