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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
Old 04-09-2018
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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SHOREWALL-TCFILTERS(5)						  [FIXME: manual]					    SHOREWALL-TCFILTERS(5)

NAME
tcfilters - Shorewall u32 classifier rules file SYNOPSIS
/etc/shorewall/tcfilters DESCRIPTION
Entries in this file cause packets to be classified for traffic shaping. Beginning with Shorewall 4.4.15, the file may contain entries for both IPv4 and IPv6. By default, all rules apply to IPv4 but that can be changed by inserting a line as follows: IPV4 Following entries apply to IPv4. IPV6 Following entries apply to IPv6 ALL Following entries apply to both IPv4 and IPv6. Each entry is processed twice; once for IPv4 and once for IPv6. The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in the alternate specification syntax). CLASS - interface:class The name or number of an interface defined in shorewall-tcdevices[1](5) followed by a class number defined for that interface in shorewall-tcclasses[2](5). SOURCE - {-|address} Source of the packet. May be a host or network address. DNS names are not allowed. DEST - {-|address}} Destination of the packet. May be a host or network address. DNS names are not allowed. You may exclude certain hosts from the set already defined through use of an exclusion (see shorewall-exclusion[3](5)). PROTO - {-|protocol-number|protocol-name|all} Protocol. DEST PORT (dport) - [-|port-name-or-number] Optional destination Ports. A Port name (from services(5)) or a port number; if the protocol is icmp, this column is interpreted as the destination icmp-type(s). SOURCE PORT (sport) - [-|port-name-or-number] Optional source port. TOS (Optional) - [-|tos] Specifies the value of the TOS field. The tos value can be any of the following: o tos-minimize-delay o tos-maximuze-throughput o tos-maximize-reliability o tos-minimize-cost o tos-normal-service o hex-number o hex-number/hex-number The hex-numbers must be exactly two digits (e.g., 0x04)x. LENGTH - [-|number] Optional - Must be a power of 2 between 32 and 8192 inclusive. Packets with a total length that is strictly less than the specified number will match the rule. EXAMPLE
Example 1: Place all 'ping' traffic on interface 1 in class 10. Note that ALL cannot be used because IPv4 ICMP and IPv6 ICMP are two different protocols. #CLASS SOURCE DEST PROTO DEST # PORT IPV4 1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-request 1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-reply IPV6 1:10 ::/0 ::/0 icmp6 echo-request 1:10 ::/0 ::/0 icmp6 echo-reply FILES
/etc/shorewall/tcfilters SEE ALSO
http://shorewall.net/traffic_shaping.htm http://shorewall.net/MultiISP.html http://shorewall.net/PacketMarking.html http://shorewall.net/configuration_file_basics.htm#Pairs shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-ecn(5), shorewall-exclusion(5), shorewall-hosts(5), shorewall_interfaces(5), shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5), shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5), shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5) NOTES
1. shorewall-tcdevices http://www.shorewall.net/manpages/shorewall-tcdevices.html 2. shorewall-tcclasses http://www.shorewall.net/manpages/shorewall-tcclasses.html 3. shorewall-exclusion http://www.shorewall.net/manpages/shorewall-exclusion.html [FIXME: source] 06/28/2012 SHOREWALL-TCFILTERS(5)
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