Log file for icmp requests Post: 302455072

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Hi, I am relatively new to firewalls and netfilter. I have a Debian Stretch router box running dnsmasq, connected to a VPN. Occasionally dnsmasq polls all of the desired DNS servers to select the fastest. When it does this it responds to replies of the non-selected DNS servers with a icmp type...

LEARN ABOUT DEBIAN

traceroute

TRACEROUTE(1)                                                      User Commands                                                     TRACEROUTE(1)

NAME

       traceroute - Trace the route to a host

SYNOPSIS

       traceroute [OPTION...] HOST

DESCRIPTION

       Print the route packets trace to network host.

       -f, --first-hop=NUM
              Set initial hop distance, that is the time-to-live.

       -g, --gateways=GATES
              List of gateways for loose source routing.

       -I, --icmp
              Use ICMP ECHO as probe.

       -m, --max-hop=NUM
              Set maximal hop count (default is 64).

       -M, --type=METHOD
              Use METHOD (icmp or udp) for traceroute operations, defaulting to udp.

       -p, --port=PORT
              Use destination PORT port (default is 33434).

       -q, --tries=NUM
              Send NUM probe packets per hop (default is 3).

       --resolve-hostnames
              Resolve hostnames.

       -t, --tos=NUM
              Set type of service (TOS) to NUM.

       -w, --wait=NUM
              Wait NUM seconds for response (default is 3).

       -?, --help
              Give this help list.

       --usage
              Give a short usage message.

       -V, --version
              Print program version.

GNU inetutils                                                       2015-05-15                                                       TRACEROUTE(1)

10 More Discussions You Might Find Interesting

1. IP Networking

icmp

Discussion started by: seccom

2. Linux

Linux and ICMP timestamp requests.

Discussion started by: gerwhelan

3. UNIX for Advanced & Expert Users

ICMP Echo-Request

Discussion started by: ilmora

4. UNIX for Dummies Questions & Answers

Need to log http requests

Discussion started by: fundidor