Hello,

I'm sorry my bad English. I've got a firewall with following topology:

- VLAN_20 - 192.168.20.1/24
- VLAN_30 - 192.168.30.1/24
- BR_VLAN0 - (no ip only enabled)

The bridge contains both VLAN_20 and VLAN_30.

There is a notebook behind VLAN_30 (IP: 192.168.30.10). I'm pinging from
this notebook to 192.168.30.5 (a non existent IP). This generate  ARP
broadcast requests.

10:08:55.572459 00:16:36:94:a9:93 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q
(0x8100), length 64: vlan 30, p 0, ethertype ARP, Request who-has
192.168.30.5 tell 192.168.30.10, length 46
10:08:55.572481 00:16:36:94:a9:93 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q
(0x8100), length 64: vlan 20, p 0, ethertype ARP, Request who-has
192.168.30.5 tell 192.168.30.10, length 46
10:08:56.573096 00:16:36:94:a9:93 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q
(0x8100), length 64: vlan 30, p 0, ethertype ARP, Request who-has
192.168.30.5 tell 192.168.30.10, length 46
10:08:56.573117 00:16:36:94:a9:93 > ff:ff:ff:ff:ff:ff, ethertype 802.1Q
(0x8100), length 64: vlan 20, p 0, ethertype ARP, Request who-has
192.168.30.5 tell 192.168.30.10, length 46

I would like to these ARP packets do not go to VLAN_20, because is sure
there is not the end destination.

I'm trying with choparp the following command:

choparp nfe0_vlan20 00:1a:92:c9:18:6d -192.168.30.0/24

But doesn't work. Is there any solution or forget it? (The bridge is
necessary for other reasons.)

Thank you,
Regards
Mihaly
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