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Subject: [Bug 213618] When running as a Hyper-V Guest, FreeBSD 11 networking
does not work
Date: Wed, 19 Oct 2016 16:50:24 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: 11.0-RC1
X-Bugzilla-Keywords:
X-Bugzilla-Severity: Affects Some People
X-Bugzilla-Who: caesar@starkreality.com
X-Bugzilla-Status: New
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213618
Bug ID: 213618
Summary: When running as a Hyper-V Guest, FreeBSD 11 networking
does not work
Product: Base System
Version: 11.0-RC1
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: caesar@starkreality.com
CC: freebsd-amd64@FreeBSD.org
CC: freebsd-amd64@FreeBSD.org
Host OS: Windows Server 2012
Guest OS: FreeBSD 11.0-RELEASE-p1
Neither the syntetic hnX NIC or the emulated Tulip deX NICs appear to be ab=
le
to transmit. The NICs are detected, and appear to be able to receive traff=
ic
(IPv6 SLAAC works, tcpdump shows broadcast/multicast traffic), but the NICs=
are
unable to transmit. dhclient complains send_packet: No buffer space availa=
ble.
After configuring a static address with ifconfig, attempts to send packets=
via
ping do not show up in a tcpdump. This has been verified under the followi=
ng
conditions:
10.3-RELEASE upgrade to 11.0-RELEASE
11.0-RELEASE fresh installation from .iso
11.0-RELEASE .vhd image from ftp.freebsd.org
dmesg related to hn:
hn0: <Hyper-V Network Interface> on vmbus0
hn0: LRO: entry count 128
hn0: unknown status 1073872902 received
hn0: unknown status 1073872902 received
hn0: hv send offload request succeeded
hn0: 1 TX ring, 1 RX ring
hn0: Ethernet address: 00:15:5d:xx:xx:xx
hn0: TSO: 65517/31/4096
hn0: link state changed to UP
ifconfig hn0 shows:
hn0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=3D71b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,TSO4,TSO6,LRO>
ether 00:15:5d:xx:xx:xx
inet6 fe80::... prefixlen 64 scopeid 0x2
inet6 2601:... prefixlen 64 autoconf
inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
nd6 options=3D23<PERFORMNUD,ACCEPT_RTADV,AUTO_LINKLOCAL>
media: Ethernet autoselect (10Gbase-T <full-duplex>)
status: active
--=20
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