← 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
- Check syntax: tcpdump -d "filter_expression"
- Simple: tcpdump -i eth0 port 80
- Reference: tcpdump man page for BPF syntax