libsmbclient and smb_opendir: problem with workgroup
Andreas
andreas at conectiva.com.br
Mon Jun 14 16:56:22 GMT 2004
On Fri, Jun 11, 2004 at 05:33:10PM -0700, Richard Sharpe wrote:
> Could you get a network capture of what happens when you try to access
> "smb:://"?
The test program I used:
#include <libsmbclient.h>
#include <stdio.h>
#include <linux/errno.h>
void auth_smbc_get_data(const char *server,const char *share,
char *workgroup, int wgmaxlen,
char *username, int unmaxlen,
char *password, int pwmaxlen)
{
printf("Do nothing\n");
}
int main(void)
{
int dirfd,initst;
struct smbc_dirent *dirp = NULL;
initst = smbc_init(auth_smbc_get_data,1);
printf("Init result: %d\n",initst);
printf("Calling smbc_opendir(\"smb://\")\n");
dirfd = smbc_opendir( "smb://" );
printf("smbc_opendir() result: dirfd=%d\n", dirfd);
return 0;
}
First run:
- /etc/samba/smb.conf has "workgroup=MYGROUP", and is not running
- no ~/.smb/smb.conf file
- /etc/samba/lmhosts has "10.0.4.149 duckman"
[andreas at pandora andreas]$ ./test
params.c:OpenConfFile() - Unable to open configuration file "/home/andreas/.smb/smb.conf":
No such file or directory
Using netbios name PANDORA.
Using workgroup MYGROUP.
Init result: 0
Calling smbc_opendir("smb://")
Do nothing <---- (a long time here, about 20s I guess)
smbc_opendir() result: dirfd=-1 <--------- uh oh
Output from tethereal:
1 0.000000 10.0.2.177 -> 10.0.7.255 NBNS Name query NB MYGROUP<1d>
2 0.000571 10.0.4.149 -> 10.0.2.177 NBNS Name query response NB 10.0.4.149
3 0.269830 10.0.2.177 -> 10.0.4.149 NBNS Name query NBSTAT *<00><00><00><00><00><00><00><00><00><00><00><00><00><00><00>
4 0.270569 10.0.4.149 -> 10.0.2.177 NBNS Name query response NBSTAT
5 0.270997 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051616039 TSER=0 WS=0
6 0.271179 10.0.4.149 -> 10.0.2.177 TCP 139 > 43989 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151461813 TSER=1051616039 WS=0
7 0.271196 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051616039 TSER=4151461813
8 0.281775 10.0.2.177 -> 10.0.4.149 NBSS Session request, to DUCKMAN<20> from PANDORA<00>
9 0.482694 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
10 0.884630 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
11 1.688525 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
12 3.296281 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
13 4.162616 10.0.4.149 -> 10.0.2.177 TCP 139 > 43989 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151465705 TSER=1051619065 WS=0
14 4.162654 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051619931 TSER=4151465705 SLE=1673869154 SRE=1673869155
15 6.511792 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
16 10.162510 10.0.4.149 -> 10.0.2.177 TCP 139 > 43989 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151471705 TSER=1051622281 WS=0
17 10.162547 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051625932 TSER=4151471705 SLE=1673869154 SRE=1673869155
18 12.942808 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
19 19.993129 10.0.2.125 -> 10.0.7.255 NBNS Name query NB CONECTIVA<1d>
20 20.278710 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051636050 TSER=4151471705
21 20.279072 10.0.2.177 -> 10.0.4.149 TCP 43990 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051636050 TSER=0 WS=0
22 20.279233 10.0.4.149 -> 10.0.2.177 TCP 139 > 43990 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151481821 TSER=1051636050 WS=0
23 20.279251 10.0.2.177 -> 10.0.4.149 TCP 43990 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051636050 TSER=4151481821
24 20.289737 10.0.2.177 -> 10.0.4.149 NBSS Session request, to *SMBSERVER<20> from PANDORA<00>
25 20.490651 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
26 20.892590 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
27 21.696485 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
28 22.162301 10.0.4.149 -> 10.0.2.177 TCP 139 > 43989 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151483705 TSER=1051628713 WS=0
29 22.162318 10.0.2.177 -> 10.0.4.149 TCP 43989 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051637933 TSER=4151483705 SLE=1673869154 SRE=1673869155
30 23.304226 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
31 23.962268 10.0.4.149 -> 10.0.2.177 TCP 139 > 43990 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151485505 TSER=1051639076 WS=0
32 23.962282 10.0.2.177 -> 10.0.4.149 TCP 43990 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051639734 TSER=4151485505 SLE=1695230839 SRE=1695230840
33 25.804854 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
34 26.519734 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
35 29.962165 10.0.4.149 -> 10.0.2.177 TCP 139 > 43990 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151491505 TSER=1051642292 WS=0
36 29.962208 10.0.2.177 -> 10.0.4.149 TCP 43990 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051645734 TSER=4151491505 SLE=1695230839 SRE=1695230840
37 32.950765 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
38 40.286665 10.0.2.177 -> 10.0.4.149 TCP 43990 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051656061 TSER=4151491505
Now with an emtpy ~/.smb/smb.conf file. the rest is the same regarding configuration files
and machine state:
(Note: there is no WORKGROUP workgroup in this network.)
[andreas at pandora andreas]$ ./test
Using netbios name PANDORA.
Using workgroup WORKGROUP. <--- default workgroup if none specified, I guess
Init result: 0
Calling smbc_opendir("smb://") <---- long time here (I guess those 10s mentioned in the next line)
session request to 10.0.4.149 failed (Call timed out: server did not respond after 10000 milliseconds)
session request to *SMBSERVER failed (Call timed out: server did not respond after 10000 milliseconds)
session request to DUCKMAN failed (Call timed out: server did not respond after 10000 milliseconds)
session request to *SMBSERVER failed (Call timed out: server did not respond after 10000 milliseconds)
Do nothing
smbc_opendir() result: dirfd=10000 <--- smbc_opendir() worked this time
tethereal's output is much bigger this time, over 140 packets, I'll post the first part. If more is needed,
please tell me. It eventually gives up on duckman and moves on to the other servers/groups (packets 89 and 90):
1 0.000000 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1d>
2 0.270109 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1d>
3 0.540051 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1d>
4 0.810107 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1b>
5 1.079969 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1b>
6 1.349927 10.0.2.177 -> 10.0.7.255 NBNS Name query NB WORKGROUP<1b>
7 1.619911 10.0.2.177 -> 10.0.7.255 NBNS Name query NB <01><02>__MSBROWSE__<02><01>
8 1.620325 10.0.0.6 -> 10.0.2.177 NBNS Name query response NB 10.0.0.6
9 1.620410 10.0.4.149 -> 10.0.2.177 NBNS Name query response NB 10.0.4.149
10 1.620545 10.0.3.11 -> 10.0.2.177 NBNS Name query response NB 10.0.3.11
11 1.620684 10.0.4.142 -> 10.0.2.177 NBNS Name query response NB 10.0.4.142
12 1.889879 10.0.2.177 -> 10.0.4.149 NBNS Name query NBSTAT *<00><00><00><00><00><00><00><00><00><00><00><00><00><00><00>
13 1.890606 10.0.4.149 -> 10.0.2.177 NBNS Name query response NBSTAT
14 1.890715 10.0.2.177 -> 10.0.7.255 NBNS Name query NB MYGROUP<1d>
15 1.890990 10.0.4.149 -> 10.0.2.177 NBNS Name query response NB 10.0.4.149
16 2.161171 10.0.2.177 -> 10.0.4.149 TCP 43991 > 445 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051767613 TSER=0 WS=0
17 2.161323 10.0.4.149 -> 10.0.2.177 TCP 445 > 43991 [RST, ACK] Seq=0 Ack=0 Win=0 Len=0
18 2.171782 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051767624 TSER=0 WS=0
19 2.171936 10.0.4.149 -> 10.0.2.177 TCP 139 > 43992 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151613377 TSER=1051767624 WS=0
20 2.171950 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051767624 TSER=4151613377
21 2.182843 10.0.2.177 -> 10.0.4.149 NBSS Session request, to 10.0.4.149<20> from PANDORA<00>
22 2.383733 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
23 2.785669 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
24 3.589555 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
25 5.197307 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
26 6.499047 10.0.4.149 -> 10.0.2.177 TCP 139 > 43992 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151617705 TSER=1051770650 WS=0
27 6.499070 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051771951 TSER=4151617705 SLE=1824746216 SRE=1824746217
28 7.111862 10.0.4.142 -> 10.0.7.255 BROWSER Domain/Workgroup Announcement DISTRO, Domain Controller, NT Workstation, Domain Enum
29 8.412824 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
30 12.181274 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051777635 TSER=4151617705
31 12.181379 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051777635 TSER=0 WS=0
32 12.181542 10.0.4.149 -> 10.0.2.177 TCP 139 > 43993 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151623387 TSER=1051777635 WS=0
33 12.181561 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051777635 TSER=4151623387
34 12.192297 10.0.2.177 -> 10.0.4.149 NBSS Session request, to *SMBSERVER<20> from PANDORA<00>
35 12.393216 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
36 12.698930 10.0.4.149 -> 10.0.2.177 TCP 139 > 43992 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151623905 TSER=1051773866 WS=0
37 12.698949 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051778152 TSER=4151623905 SLE=1824746216 SRE=1824746217
38 12.795146 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
39 13.599025 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
40 14.843854 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
41 15.206780 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
42 16.498870 10.0.4.149 -> 10.0.2.177 TCP 139 > 43993 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151627705 TSER=1051780661 WS=0
43 16.498901 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051781953 TSER=4151627705 SLE=1836048142 SRE=1836048143
45 18.422294 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
46 22.190740 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051787646 TSER=4151627705
47 22.190856 10.0.2.177 -> 10.0.4.149 NBNS Name query NBSTAT *<00><00><00><00><00><00><00><00><00><00><00><00><00><00><00>
48 22.191582 10.0.4.149 -> 10.0.2.177 NBNS Name query response NBSTAT
49 22.191748 10.0.4.149 -> 10.0.7.255 BROWSER Local Master Announcement DUCKMAN, Workstation, Server, Print Queue Server, Xenix Server, NT Workstation, NT
Server, Master Browser
50 22.191830 10.0.4.149 -> 10.0.7.255 BROWSER Domain/Workgroup Announcement MYGROUP, NT Workstation, Domain Enum
51 22.191957 10.0.2.177 -> 10.0.4.149 TCP 43994 > 445 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051787647 TSER=0 WS=0
52 22.192094 10.0.4.149 -> 10.0.2.177 TCP 445 > 43994 [RST, ACK] Seq=0 Ack=0 Win=0 Len=0
53 22.203163 10.0.2.177 -> 10.0.4.149 TCP 43995 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051787658 TSER=0 WS=0
54 22.203339 10.0.4.149 -> 10.0.2.177 TCP 139 > 43995 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151633409 TSER=1051787658 WS=0
55 22.203354 10.0.2.177 -> 10.0.4.149 TCP 43995 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051787658 TSER=4151633409
56 22.213752 10.0.2.177 -> 10.0.4.149 NBSS Session request, to DUCKMAN<20> from PANDORA<00>
57 22.414686 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
58 22.698762 10.0.4.149 -> 10.0.2.177 TCP 139 > 43993 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151633905 TSER=1051783877 WS=0
59 22.698777 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051788154 TSER=4151633905 SLE=1836048142 SRE=1836048143
60 22.816622 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
61 23.620510 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
62 24.698722 10.0.4.149 -> 10.0.2.177 TCP 139 > 43992 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151635905 TSER=1051780298 WS=0
63 24.698755 10.0.2.177 -> 10.0.4.149 TCP 43992 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051790154 TSER=4151635905 SLE=1824746216 SRE=1824746217
64 24.853317 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
65 25.228257 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
66 26.298691 10.0.4.149 -> 10.0.2.177 TCP 139 > 43995 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151637505 TSER=1051790684 WS=0
67 26.298704 10.0.2.177 -> 10.0.4.149 TCP 43995 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051791754 TSER=4151637505 SLE=1852385141 SRE=1852385142
68 27.705891 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to 10.0.4.149<20> from PANDORA<00>
69 28.443773 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
70 32.212222 10.0.2.177 -> 10.0.4.149 TCP 43995 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051797669 TSER=4151637505
71 32.212317 10.0.2.177 -> 10.0.4.149 TCP 43996 > 139 [SYN] Seq=0 Ack=0 Win=5840 Len=0 MSS=1460 TSV=1051797669 TSER=0 WS=0
72 32.212471 10.0.4.149 -> 10.0.2.177 TCP 139 > 43996 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151643418 TSER=1051797669 WS=0
73 32.212491 10.0.2.177 -> 10.0.4.149 TCP 43996 > 139 [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSV=1051797669 TSER=4151643418
74 32.223230 10.0.2.177 -> 10.0.4.149 NBSS Session request, to *SMBSERVER<20> from PANDORA<00>
75 32.298576 10.0.4.149 -> 10.0.2.177 TCP 139 > 43995 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151643505 TSER=1051793900 WS=0
76 32.298590 10.0.2.177 -> 10.0.4.149 TCP 43995 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051797755 TSER=4151643505 SLE=1852385141 SRE=1852385142
77 32.424164 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
78 32.826102 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
79 33.629979 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
80 34.698545 10.0.4.149 -> 10.0.2.177 TCP 139 > 43993 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151645905 TSER=1051790309 WS=0
81 34.698559 10.0.2.177 -> 10.0.4.149 TCP 43993 > 139 [ACK] Seq=74 Ack=1 Win=5840 Len=0 TSV=1051800155 TSER=4151645905 SLE=1836048142 SRE=1836048143
82 34.874793 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to DUCKMAN<20> from PANDORA<00>
84 35.237735 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
85 36.098523 10.0.4.149 -> 10.0.2.177 TCP 139 > 43996 [SYN, ACK] Seq=0 Ack=1 Win=5792 Len=0 MSS=1460 TSV=4151647305 TSER=1051800695 WS=0
86 36.098550 10.0.2.177 -> 10.0.4.149 TCP 43996 > 139 [ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051801555 TSER=4151647305 SLE=1851631206 SRE=1851631207
87 37.715373 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
88 38.453247 10.0.2.177 -> 10.0.4.149 NBSS [TCP Retransmission] Session request, to *SMBSERVER<20> from PANDORA<00>
89 42.221701 10.0.2.177 -> 10.0.4.149 TCP 43996 > 139 [FIN, ACK] Seq=73 Ack=1 Win=5840 Len=0 TSV=1051807680 TSER=4151647305
90 42.221825 10.0.2.177 -> 10.0.4.142 NBNS Name query NBSTAT *<00><00><00><00><00><00><00><00><00><00><00><00><00><00><00>
91 42.222582 10.0.4.142 -> 10.0.2.177 NBNS Name query response NBSTAT
92 42.222762 10.0.2.177 -> 10.0.7.255 NBNS Name query NB DISTRO<1d>
93 42.223142 10.0.4.142 -> 10.0.2.177 NBNS Name query response NB 10.0.4.142
(...)
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