Changes between Initial Version and Version 1 of Ticket #15996
- Timestamp:
- Sep 28, 2016 3:37:32 PM (8 years ago)
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Ticket #15996 – Description
initial v1 1 1 Hello, 2 2 3 i have a special configuration and the shinny new macos 10.12. So It could be that macos is the cause of 4 this error too. 3 i have a special configuration and the shinny new macos 10.12. So It could be that macos is the cause of this error too. 5 4 6 5 I'm running 5.1.6 on 10.12 macos and installed a own bridge on macos with: 6 {{{ 7 7 ifconfig bridge0 create 8 8 ifconfig bridge0 10.24.1.1/24 up 9 9 ifconfig bridge0 inet6 fd00::10:24:1:1/64 up 10 }}} 10 11 than I bind my guest to these bridge0 and on ipv4 all is good but on ipv6 ping's are working 11 12 but any tcp or udp doesn't. 12 13 The root cause is that the guest host receives packet with a wrong checksum: 13 14 {{{ 14 15 1 0.000000 fd00::10:24:1:1 fd00::10:24:1:201 TCP 98 53596→22 [SYN, ECN, CWR] Seq=0 Win=65535 [TCP CHECKSUM INCORRECT] Len=0 MSS=1440 WS=32 TSval=497945749 TSecr=0 SACK_PERM=1 15 16 If add another guest to that bridge and try so access my dest from these new ("linux") guest everything is 17 ok. Like: 18 16 }}} 17 If add another guest to that bridge and try so access my dest from these new ("linux") guest everything is ok. Like: 18 {{{ 19 19 1 0.000000 fd00::10:24:1:149 fd00::10:24:1:201 TCP 94 45678→22 [SYN] Seq=0 Win=28800 Len=0 MSS=1440 SACK_PERM=1 TSval=301306 TSecr=0 WS=128 20 20 }}} 21 21 I was not able to check the chksum generation if i plugin a real device to the macos bridge. 22 22 23 And i did not have these ipv6 use case days before where i had run 10.11, so this problem might be new or 24 old from virtualbox or macos ... 23 And i did not have these ipv6 use case days before where i had run 10.11, so this problem might be new or old from virtualbox or macos ... 25 24 I decided to report to you out of the fact that you are not manage the bridges on macos like on linux where you add a virtual device to the bridge. This is a kind of odd-:) 26 25 27 26 Cheers 27 meno 28 28 29 meno 30 P.S. ifconfig bridge0 29 P.S. 30 {{{ 31 $ ifconfig bridge0 31 32 bridge0: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500 32 33 options=63<RXCSUM,TXCSUM,TSO4,TSO6> … … 44 45 media: <unknown type> 45 46 status: inactive 47 }}}

