[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
--
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https://bugs.launchpad.net/bugs/1862415
Title:
-nic user cannot receive TFTP response from outside on windows 10 host
Status in QEMU:
Expired
Bug description:
Configuration:
qemu is on a windows 10 host, address 192.168.1.24
A tftp server, which is atftpd, is at address 192.168.1.31
a guest is started by:
```
.\qemu-system-x86_64.exe -accel hax \
-nic
user,id=n1,tftp-server-name=192.168.1.31,bootfile=tftp://192.168.1.31/grub/i386-pc/core.0
\
-object filter-dump,id=f1,netdev=n1,file=dump.dat
```
qemu v4.2.0-11797-g2890edc853-dirty, from https://qemu.weilnetz.de/w64/
windows 10 1909 18363.628
Here is the captured traffic from dump.dat, no filter applied:
No. Time Source Destination Protocol Length Info
1 0.000000 0.0.0.0 255.255.255.255 DHCP 439 DHCP Discover -
Transaction ID 0xdb38340e
2 0.000081 10.0.2.2 255.255.255.255 DHCP 590 DHCP
Offer - Transaction ID 0xdb38340e
3 1.035670 0.0.0.0 255.255.255.255 DHCP 439 DHCP Discover -
Transaction ID 0xdb38340e
4 1.035693 10.0.2.2 255.255.255.255 DHCP 590 DHCP
Offer - Transaction ID 0xdb38340e
5 3.068055 0.0.0.0 255.255.255.255 DHCP 451 DHCP Request -
Transaction ID 0xdb38340e
6 3.068099 10.0.2.2 255.255.255.255 DHCP 590 DHCP
ACK - Transaction ID 0xdb38340e
7 3.068209 RealtekU_12:34:56 Broadcast ARP 42
ARP Announcement for 10.0.2.15
8 3.148419 RealtekU_12:34:56 Broadcast ARP 42
Who has 10.0.2.2? Tell 10.0.2.15
9 3.148449 52:55:0a:00:02:02 RealtekU_12:34:56 ARP
64 10.0.2.2 is at 52:55:0a:00:02:02
10 3.148511 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
11 3.398093 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
12 3.946041 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
13 4.990262 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14 7.022839 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
15 11.087041 10.0.2.15 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
Here is the captured traffic at host NIC, filered by from or to 192.168.1.31
No. Time Source Destination Protocol Length Info
14140 57.729066 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14141 57.732988 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14255 57.977995 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14256 57.979876 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14275 58.525939 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14276 58.527819 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14328 59.570178 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14329 59.581024 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14383 61.602742 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14384 61.605554 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14730 62.736572 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14741 62.987924 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14756 63.533477 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14815 64.577653 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
14916 65.666959 192.168.1.24 192.168.1.31 TFTP 91 Read
Request, File: grub/i386-pc/core.0, Transfer type: octet, blksize=1432, tsize=0
14917 65.668778 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
15235 66.615186 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
15481 67.745250 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
15509 67.991523 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
15566 68.539050 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
16691 69.583531 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
17457 70.675366 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
17599 71.615337 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
17904 72.747338 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
18012 72.995681 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
18192 73.544257 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
18360 74.588002 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
18981 75.679037 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
19270 76.620528 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
19839 77.752338 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
19852 78.001267 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
19917 78.548965 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20066 79.593232 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20140 80.684604 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20220 81.625996 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20537 82.824574 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20551 83.033318 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20607 83.555510 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20734 84.598612 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20816 85.691535 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
20898 86.631036 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
22311 90.695296 192.168.1.31 192.168.1.24 TFTP 69 Option
Acknowledgement, tsize=45542, blksize=1432
From the traffic, the guest sent the request properly, and it is
rerouted outside properly, and the server respond to it properly.
However, the guest never received the response.
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