How to enable ping?a litte complex Post: 303015633

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Operating Systems Solaris How to enable ping?a litte complex Post 303015633 by stomp on Monday 9th of April 2018 07:47:09 AM

04-09-2018

Registered User

Code:

# Icmp     

iptables -A INPUT -p icmp -m icmp --icmp-type 0 -s 0/0 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT     
iptables -A INPUT -p icmp -m icmp --icmp-type 8 -s 0/0 -m state --state NEW,RELATED,ESTABLISHED -j ACCEPT

a) ICMP is stateless. So defining the state is senseless

b) ICMP Subtype 8 is echo Request, which you correctly defined on the INPUT Chain. ICMP Subtype 0 is "echo Reply" which is regulated at the OUTPUT chain since it is sent from the local host to the pinging party

c) Defining source -s 0/0 is of no use. Omit that and you have no restriction of source addresses.

d) I would assume the module icmp is automatically loaded when you specifiy -p icmp, so you can omit this too.

You can trace your paket filter more closely with additional log-rules before and after important Rules in your filter-definition.

Oh. Wait. I misunterstood. iptables is the pinging party....

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LEARN ABOUT DEBIAN

tracestats

TRACESTATS(1)							   User Commands						     TRACESTATS(1)

NAME

       tracestats - perform simple analysis on a trace

SYNOPSIS

       tracestats [ -f | --filter bpf ]... inputuri...

DESCRPTION

       tracestats  reads  one  or  more  traces  and  outputs summaries for each trace of how many packets/bytes match each bpf filter, as well as
       totals.	If instead of doing this for the entire trace, but to do it for portions then use tracertstats(1) instead.

       -f bpf-filter
       --filter bpf-filter
	      Add another bpf filter

EXAMPLES

       tracestats --filter 'host sundown' 
	    --filter 'port http' 
	    --filter 'port ftp or ftp-data' 
	    --filter 'port smtp' 
	    --filter 'tcp[tcpflags] & tcp-syn!=0' 
	    --filter 'not ip' 
	    --filter 'ether[0] & 1 == 1' 
	    --filter 'icmp[icmptype] == icmp-unreach' 
	    erf:/traces/trace1.gz 
	    erf:/traces/trace2.gz 

LINKS

       More details about tracestats (and libtrace) can be found at http://www.wand.net.nz/trac/libtrace/wiki/UserDocumentation

SEE ALSO

       libtrace(3), tracemerge(1), tracefilter(1), traceconvert(1), tracesplit(1), tracesplit_dir(1), tracereport(1),  tracertstats(1),  tracepkt-
       dump(1), traceanon(1), tracesummary(1), tracereplay(1), tracediff(1), traceends(1), tracetopends(1)

AUTHORS

       Perry Lorier <perry@cs.waikato.ac.nz>

tracestats (libtrace)						   October 2005 						     TRACESTATS(1)