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Subject: Re: VLAN+bridge problem [was: no network between jails and host with
 VNET on same interface]
To: Alexander Lunev <lan@zato.ru>, freebsd-net@freebsd.org
References: <213f9284-5ddd-4dbc-6631-f8592efa2995@zato.ru>
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From: Julian Elischer <julian@freebsd.org>
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Date: Wed, 9 Oct 2019 12:41:04 -0700
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try use netgraph bridge and interfaces

On 10/9/19 11:38 AM, Alexander Lunev via freebsd-net wrote:
> 07.10.2019 8:21, Alexander N. Lunev via freebsd-net пишет:
>> I've tested with tcpdump, and here's what i found:
>
> > Host interfaces:
> > em0 up
> > vlan22 10.15.15.1/24 vlandev em0 vlan22
> > epair0a - part of epair for jail foo
> > bridge0 addm epair0 addm em0
>
> > Jail foo interfaces:
> > epair0b up (vnet interface)
> > vlan22 10.15.15.2/24 vlandev epair0b vlan22
>
> I found that there's already reported a bug 240106.
>
> Just to spread the word - I've added comment about my situation with 
> some more test with tcpdump:
>
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240106#c3
>
> To make it short here: if I add static ARP entries for IPs on host's 
> and jail's vlan interfaces, then ICMP requests reach host's vlan 
> interface, but replies doesn't return to jail. All tcpdump output is 
> in my comment in PR, see link.
>