← All Kali Issues
Tcpdump

Capture filter syntax error

C Configuration Low

🔴 Error Message

tcpdump: syntax error in filter expression

📖 What This Means

BPF filter has wrong syntax.

🔧 Step-by-Step Fix

  1. Check syntax: tcpdump -d "filter_expression"
  2. Simple: tcpdump -i eth0 port 80
  3. Reference: tcpdump man page for BPF syntax

🔗 More Tcpdump Issues

Tcpdump
Packets dropping
Tcpdump
Permission denied
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