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Head-to-head · Network Troubleshooting Software

tcpdump vs ThousandEyes Network Monitoring

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score tcpdump #3 in Network Troubleshooting Software 8.9/10 Free plan Free plan✓ 0 of 2 features Visit tcpdump
ThousandEyes Network Monitoring #5 in Network Troubleshooting Software 8.7/10 Pricing on request ✓ 0 of 2 features Visit ThousandEyes

tcpdump leads on 1 check, ThousandEyes Network Monitoring on 0, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoretcpdump · 8.9/10
  • Free planonly tcpdump

tcpdump scores higher on our rubric for network troubleshooting software: 8.9 against 8.7 out of 10; our editors rank them #3 and #5.

tcpdump offers free plan; ThousandEyes Network Monitoring doesn't.

tcpdump is the better fit for free command-line packet capture. ThousandEyes Network Monitoring is the better fit for enterprise topology and application-path monitoring.

  • tcpdump fits best

    Free command-line packet capture

  • ThousandEyes Network Monitoring fits best

    Enterprise topology and application-path monitoring

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature tcpdump 8.9/10 Visit ↗ ThousandEyes Network Monitoring 8.7/10 Visit ↗
At a glance
Editor score 8.9 8.7
Ranking #3 in Network Troubleshooting Software #5 in Network Troubleshooting Software
Best for Free command-line packet capture Enterprise topology and application-path monitoring
Pricing model Free Paid
Starting price Free plan —
Free plan ✓ (best) —
Free trial — —
Deployment Desktop, Self-hosted Cloud
Platforms Windows, macOS, Linux Web
Support Community, Docs Email, Live chat, Phone, Community, Docs · 24/7
Built for Solo, Small business, Mid-market, Enterprise Enterprise, Mid-market
Features tcpdump 0/2 · ThousandEyes Network Monitoring 0/2
Packet capture Not checked yet Not checked yet
Path analysis Not checked yet Not checked yet
Specs
Deployment Not checked yet Cloud
Supported platforms Not checked yet Not checked yet
Device limit Not checked yet Not checked yet
Our review
Pros
  • Captures live traffic and filters packets with Berkeley Packet Filter expressions
  • Reads and writes pcap files, and reads pcapng capture files
  • Supports remote interface capture through RPCAP/libpcap
  • Discovers infrastructure with SNMP, LLDP, and CDP
  • Correlates device metrics with network and application performance
  • Connects through APIs, OpenTelemetry, Slack, PagerDuty, and webhooks
Cons
  • Its command-line focus offers less built-in visual analysis than Wireshark
  • Support channels are community resources and documentation
  • It is distributed as software, not as a vendor-hosted service
  • Cloud-only deployment requires agents in customer environments
  • Annual subscription pricing is quote-based
  • Topology rendering is limited to 250 devices
Our verdict

For network troubleshooting, monitoring, traffic analysis, and security diagnostics, tcpdump provides command-line packet capture and inspection. It is a fit for people who want to capture traffic from available interfaces, filter packets,…

Read the review →

Network and application issues can cross device, path, and service boundaries. ThousandEyes Network Monitoring brings those layers into a cloud service for enterprise and mid-market network teams investigating failures, bottlenecks, and…

Read the review →
  1. tcpdumpNetwork Troubleshooting Software 8.9Free plan
  2. ThousandEyes Network MonitoringNetwork Troubleshooting Software 8.7Pricing on request

Strengths and trade-offs

  • tcpdump — where it wins

    • Captures live traffic and filters packets with Berkeley Packet Filter expressions
    • Reads and writes pcap files, and reads pcapng capture files
    • Supports remote interface capture through RPCAP/libpcap

    Where it doesn't

    • Its command-line focus offers less built-in visual analysis than Wireshark
    • Support channels are community resources and documentation
    • It is distributed as software, not as a vendor-hosted service

  • ThousandEyes Network Monitoring — where it wins

    • Discovers infrastructure with SNMP, LLDP, and CDP
    • Correlates device metrics with network and application performance
    • Connects through APIs, OpenTelemetry, Slack, PagerDuty, and webhooks

    Where it doesn't

    • Cloud-only deployment requires agents in customer environments
    • Annual subscription pricing is quote-based
    • Topology rendering is limited to 250 devices
  • tcpdump8.9/10 · Free plan

    Free, open-source packet capture and inspection for people comfortable at the command line.

    Visit tcpdumpFull verdict →
  • ThousandEyes Network Monitoring8.7/10 · Pricing on request

    Cloud-based monitoring connects device health, network paths, and application performance.

    Visit ThousandEyesFull verdict →

More comparisons

All network troubleshooting software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update