Hi,

I have a crazy problem, on a CRS 326/v6.42.6 when I use all ports a bridge and to this bridge add a VLAN and VLAN filtering.
The neighbor discovery not working anymore! (interface list was all or was this bridge in a list)

When I turn off the hw offload on the uplink port, can working again the discovery in this VLAN, and I can see again in winbox or in the neighbor CRS ip/neighbor menu.

Why? And how can fixit without drop hw. off?

thanks

Nothing crazy about this: for neighbour discovery you need the connection between the interface and CPU (say router itself).
It's is true by default for the bridge, but not for VLAN on this bridge.
You need to add the bridge itself as untagged port for this VLAN - it will work then.

More to it - when you disable hw offload, you make the traffic pass through CPU, so again you unintentionally have the connection between VLAN and router itself.

If I try from connect via MAC telnet from a another device on VLAN 111, the connection established and working.
If I check the neighbors on this CRS I can see all other device in the neighbor list, just this device cant see in all other device.

#############
export compact:

/interface list
add name=admin

/interface list member
add interface=br_bone list=admin

/ip neighbor discovery-settings
set discover-interface-list=admin

/tool mac-server
set allowed-interface-list=admin
/tool mac-server mac-winbox
set allowed-interface-list=admin

/interface bridge
add fast-forward=no name=br_bone protocol-mode=none pvid=111 vlan-filtering=\
yes

/interface bridge vlan
add bridge=br_bone tagged=eth24-uplink vlan-ids=111
add bridge=br_bone tagged=eth24-uplink vlan-ids=100

/interface bridge port
add bridge=br_bone frame-types=admit-only-vlan-tagged ingress-filtering=yes \
interface=eth24-uplink
add bridge=br_bone frame-types=admit-only-untagged-and-priority-tagged \
ingress-filtering=yes interface=eth1 pvid=100
add bridge=br_bone frame-types=admit-only-untagged-and-priority-tagged \
ingress-filtering=yes interface=eth2 pvid=100
.....

hmmm

I have more CRS326, when I use SFP port for uplink the neighbor is working....

upsss... the 6.42.7 solve this problem