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Date:      Mon, 7 Aug 2017 15:30:21 +0300
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        Greg Rivers <gcr+freebsd-stable@tharned.org>, freebsd-stable@freebsd.org
Subject:   Re: SLAAC not working
Message-ID:  <db01ce67-a495-050a-b63c-f386f2f228e5@yandex.ru>
In-Reply-To: <1646645.UkMcyRZBVl@flake.tharned.org>
References:  <1646645.UkMcyRZBVl@flake.tharned.org>

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From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
To: Greg Rivers <gcr+freebsd-stable@tharned.org>, freebsd-stable@freebsd.org
Message-ID: <db01ce67-a495-050a-b63c-f386f2f228e5@yandex.ru>
Subject: Re: SLAAC not working
References: <1646645.UkMcyRZBVl@flake.tharned.org>
In-Reply-To: <1646645.UkMcyRZBVl@flake.tharned.org>

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On 06.08.2017 06:35, Greg Rivers wrote:
> The running interface looks like this:
> lagg0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mt=
u 1500
> 	options=3D507bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_H=
WCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO>
> 	ether ac:16:2d:1e:b8:80
> 	inet xxx.xxx.217.100 netmask 0xffffff80 broadcast xxx.xxx.217.127=20
> 	inet6 fe80::ae16:2dff:fe1e:b880%lagg0 prefixlen 64 scopeid 0xc=20
> 	nd6 options=3D23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
> 	media: Ethernet autoselect
> 	status: active
> 	groups: lagg=20
> 	laggproto failover lagghash l2,l3,l4
> 	laggport: oce0 flags=3D5<MASTER,ACTIVE>
> 	laggport: oce1 flags=3D0<>

You can set net.inet6.icmp6.nd6_debug=3D1 and I think you will see the
message that mtu exceeds maxmtu value.

--=20
WBR, Andrey V. Elsukov


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