Inbound/outbound not supported on linktype 1 when reading savefiles

Asked
Active3 hr before
Viewed126 times

7 Answers

90%

How to filter the inbound packet by libpcap in C: , Meta Stack Overflow ,Stack Overflow en español,Stack Overflow em Português

Guessing the interface's Ethernet address

$ tshark - r tmp.pcap - T fields - e eth.src - e eth.dst | grep - Po "(\w{2}:){5}\w{2}" | sort | uniq - c
11 01: 00: 5 e: 00: 00: 01
41 01: 00: 5 e: 00: 00: fb
11 01: 00: 5 e: 00: 00: fc
27 01: 00: 5 e: 7 f: ff: fa
34 00: 00: 00: 00: 00: 01
31 00: 00: 00: 00: 00: fb
11815 00: 00: d9: 97: 5 b: 37
905 00: 00: eb: 12: 48: d6
11115 00: 00: b0: 7 b: ce: 08
80 ff: ff: ff: ff: ff: ff
load more v
88%

Bad filter - inbound/outbound not supported on linktype 1 when reading savefiles,Is there any way that can filter inbound packet in C/C++ ?,Recently I am trying to filter the inbound packet from the pcap file by libpcap in C/C++. Here is partial code.

Recently I am trying to filter the inbound packet from the pcap file by libpcap in C/C++. Here is partial code.

  pcap = pcap_open_offline(argv[0], errbuf);
  if (pcap == NULL) {
     fprintf(stderr, "error reading pcap file: %s\n", errbuf);
     exit(1);
  }

  char filter_exp[] = "inbound";
  struct bpf_program pgm;
  if (pcap_compile(pcap, & pgm, filter_exp, 0, PCAP_NETMASK_UNKNOWN) == -1) {
     printf("Bad filter - %s\n", pcap_geterr(pcap));
     return 1;
  }

  if (pcap_setfilter(pcap, & pgm) == -1) {
     printf("Error setting filter - %s\n", pcap_geterr(pcap));
     return 1;
  }
72%

This points us to the tcpdump filter expression , A packet trace that crosses a daylight savings time change will give skewed time stamps (the time change is ignored). , When tcpdump finishes capturing packets, it will report counts of: , NBP packets are formatted like the following examples:

tcpdump - l | tee dat
load more v
65%

Wireshark allows you to string together single ranges in a comma separated list to form compound ranges as shown above.,Left-click a row to select a corresponding packet in the packet list.,Each of the settings below correspond to the packet list, packet detail, and packet bytes in the main window.,The captured field is expected to be one character in length, any remaining characters are ignored (e.g. given "Input" only the 'I' is looked at). This character is compared to lists of characters corresponding to inbound and outbound and the packet is assigned the corresponding direction. If neither list yields a match, the direction is set to unknown.

Bourne shell, normal user. 

$ # This is a comment
$ git config--global log.abbrevcommit true

Bourne shell, root user. 

# # This is a comment
# ninja install

Command Prompt (cmd.exe). 

> rem This is a comment
   >
   cd C: \Development

PowerShell. 

PS$ > # This is a comment
PS$ > choco list - l

C Source Code. 

#include "config.h"

/* This method dissects foos */
static int
dissect_foo_message(tvbuff_t * tvb, packet_info * pinfo _U_, proto_tree * tree _U_, void * data _U_) {
   /* TODO: implement your dissecting code */
   return tvb_captured_length(tvb);
}
load more v
75%

Check Internal Interface,Port forward not working Start from WAN Check Internal Interface ,Traffic traversing an IPsec tunnel,IPsec tunnel will not connect

# tcpdump - ni igb1 - c 5
tcpdump: verbose output suppressed, use - v or - vv
for full protocol decode
listening on igb1, link - type EN10MB(Ethernet), capture size 96 bytes
23: 18: 15.830706 IP 10.0 .64 .210 .22 > 10.0 .64 .15 .1395: P 2023587125: 2023587241(116) ack 2091089207 win 65535
23: 18: 15.830851 IP 10.0 .64 .210 .22 > 10.0 .64 .15 .1395: P 116: 232(116) ack 1 win 65535
23: 18: 15.831256 IP 10.0 .64 .15 .1395 > 10.0 .64 .210 .22: .ack 116 win 65299
23: 18: 15.839834 IP 10.0 .64 .3 > 224.0 .0 .18: VRRPv2, Advertisement, vrid 4, prio 0, authtype none, intvl 1 s, length 36
23: 18: 16.006407 IP 10.0 .64 .15 .1395 > 10.0 .64 .210 .22: .ack 232 win 65183
5 packets captured
load more v
40%

Create a new inbound synchronization rule and populate the description. ,Create an outbound synchronization rule to flow the attribute value to Azure AD.,Create an inbound synchronization rule to flow the attribute value from on-premises Active Directory.,To create a rule with other attribute flows, do the following:

Disable the scheduler

The scheduler runs every 30 minutes by default. Make sure it is not starting while you are making changes and troubleshooting your new rules. To temporarily disable the scheduler, start PowerShell and run Set-ADSyncScheduler -SyncCycleEnabled $false.

Set - ADSyncScheduler - SyncCycleEnabled $false
load more v
22%

The tcpdump command prints the headers of packets on a network interface that match the boolean expression. You can run the command with the -w flag to save the packet data in a file for further analysis. You can also run the command with the -r flag to read data from a saved packet file instead reading the packets from a network interface. In all cases, only packets that match expression is processed by the tcpdump command.,Reading packets from a network interface requires read access to /dev/bpf*, which is typically root-only. Reading packets from a file does not require any special privileges except file read permission.,Filter expressions on fields other than those in Token Ring headers handles the source-routed Token Ring packets incorrectly. ,The test for foreign IPv4 addresses is done by using the IPv4 address and netmask of the interface on which capture is being performed. This option does not work correctly if that address or netmask is not available.

ether proto\ ip and host host
load more v

Other "undefined-undefined" queries related to "Inbound/outbound not supported on linktype 1 when reading savefiles"