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Date:      Tue, 21 Mar 2017 16:28:30 +0100
From:      Harry Schmalzbauer <freebsd@omnilan.de>
To:        Vincent Olivier <vincent@up4.com>
Cc:        FreeBSD virtualization <freebsd-virtualization@freebsd.org>
Subject:   Re: tap on lagg ?
Message-ID:  <58D1469E.30504@omnilan.de>
In-Reply-To: <03551266-4EFD-4BAA-B200-932B62CCA988@up4.com>
References:  <11A193E5-555F-4733-B192-49A5FEDCFDEA@up4.com> <66637AFA-D092-4EBB-B998-1BB2B2EE2CB4@up4.com> <1207dbb0-ec86-34fd-9a74-68d70b3b7892@osfux.nl> <41619106-86D6-40EF-B84E-DC98A1B54FCD@up4.com> <bcabffa1-0d86-f6cc-5f4e-fc91de149975@osfux.nl> <03551266-4EFD-4BAA-B200-932B62CCA988@up4.com>

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 Bezüglich Vincent Olivier's Nachricht vom 20.03.2017 23:32 (localtime):
> Hello,
>
> Sorry for waiting so long. I don’t know if i’m doing it right but I tried «  -vlanhwtag » all the interfaces and I’m still having problems. Namely (as I didn’t have this information before) that all participating interfaces in the bridge itself are in promiscuous mode (and, if that is related) I cannot ssh into the host machine from any bhyve virtual machine. My goal is to be able to ssh and mount host nfs exports onto the VMs. Doing a « -promisc » on all the interfaces won’t change anything. Can someone help? Pleas find below a ifconfig dump.

I'd go for tcpdump.
First, check that routing is no issue.  In your constellation I guess
VMs Ips are in the 192.168.1.0/24 network, correct?
Else make sure your default gateway does
routing/deflection/icmp-redirection.

Then watch 'tcpdump -n -e - s 150 -i bridge0' on the host and the like
inside your VM (vtnet?)
Start with ping and check if ARP is working.
Also 'arp -a' on host and VM provides fundamentally information to find
the problem.
If ARP and icmp (ping) work but TCP (ssh) not, it's PMTU or offloading
related most likely.

-harry





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