DhavalKapil/icmptunnel

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3254 stars · 352 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

icmptunnel is a C command-line tool that transparently encapsulates IP traffic inside ICMP echo and reply packets, tunneling it through a proxy server. It lets client machines communicate using only ICMP, enabling traffic to pass through networks that block other protocols.

Use cases

• bypass captive portal authentication on public wifi
• tunnel traffic through firewalls that block tcp and udp
• establish an encrypted channel between two hosts over icmp
• get internet access on networks that only allow ping
• route ip traffic through icmp echo packets via a proxy server

When to choose

• you are behind a restrictive network or captive portal that permits ICMP but blocks other traffic
• you control both a client and an internet-connected proxy server with root access on POSIX systems

When to avoid

• you need a maintained, production-grade VPN solution with encryption built in
• you cannot obtain root privileges on both machines
• the network actively filters or rate-limits ICMP traffic

Facets

cli-tool · maturity maintenance

proxy networking security cryptography networking security privacy censorship-circumvention cli self-hosted icmp-tunnel captive-portal-bypass firewall-bypass c tunneling linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="DhavalKapil/icmptunnel")