06-23-2008
# netstat -rn
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp Groups
Route Tree for Protocol Family 2 (Internet):
default 172.29.2.127 UGcA 0 0 en1 - - - =>
default 172.29.2.126 UGcA 0 0 en1 - - -10.96.70.81/32 172.29.2.126 UGc 0 0 en1 - - -
10.96.70.222 172.29.2.126 UGHW 2 2318 en1 - - - =>
10.96.70.222/32 172.29.2.126 UGc 0 0 en1 - - -
127/8 127.0.0.1 U 10 8961 lo0 - - -
172.20.239.192/32 255.255.255.254 UGc 0 0 en1 - - -
172.29.2/25 172.29.2.1 U 4 84890 en1 - - -
172.29.2.1 127.0.0.1 UGHS 5 73 lo0 - - - =>
172.29.2.1/32 172.29.2.126 UGc 0 0 en1 - - - =>
172.29.2.1/32 127.0.0.1 UG 0 0 lo0 - - -
172.29.2.126 172.29.2.1 UHSb 5 85182 en1 - - -
172.29.7.192/27 172.29.2.100 UGc 0 0 en1 - - -
172.29.7.197 172.29.2.100 UGHW 0 6 en1 - - - =>
172.29.7.197/32 172.29.2.100 UGc 0 0 en1 - - -
192.168.1.0 192.168.1.2 UHSb 0 0 en0 - - - =>
192.168.1/24 192.168.1.2 U 0 1 en0 - - -
192.168.1.2 127.0.0.1 UGHS 0 1 lo0 - - - =>
192.168.1.2/32 127.0.0.1 UG 0 0 lo0 - - -
192.168.1.255 192.168.1.2 UHSb 0 4 en0 - - -
Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 16896 - -
My problem appeared in above specific lines.
I have 2 Def.Gw I tried to delete from smitty but I can't, also I tried to delete by command but I faced problem in destination address. By the result above I need to proper way to delete GW:172.29.2.127.
If possible pls.
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LEARN ABOUT DEBIAN
paranoid::network
Paranoid::Network(3pm) User Contributed Perl Documentation Paranoid::Network(3pm)
NAME
Paranoid::Network - Network functions for paranoid programs
VERSION
$Id: Network.pm,v 0.68 2012/05/29 21:38:19 acorliss Exp $
SYNOPSIS
use Paranoid::Network;
$rv = ipInNetwork($ip, @networks);
$rv = hostInDomain($host, @domains);
@ips = extractIP($string1, $string2);
$rv = netIntersect( $cidr1, $cidr2 );
DESCRIPTION
This modules contains functions that may be useful for network operations. IPv6 is supported out of the box starting with Perl 5.14.
Earlier versions of Perl will require Socket6(3) installed as well. If it is available this module will use it automatically.
SUBROUTINES
/METHODS
ipInNetwork
$rv = ipInNetwork($ip, @networks);
This function checks the passed IP against each of the networks or IPs in the list and returns true if there's a match. The list of
networks can be either individual IP address or network addresses in CIDR notation or with full netmasks:
@networks = qw(127.0.0.1
192.168.0.0/24
172.16.12.0/255.255.240.0);
IPv6 is supported if the Socket6(3) module is installed or you're running Perl 5.14 or higher. This routine will select the appropriate
address family based on the IP you're testing and filter out the opposing address family in the list.
NOTE: IPv4 addresses encoded as IPv6 addresses, e.g.:
::ffff:192.168.0.5
are supported, however an IP address submitted in this format as the IP to test for will be converted to a pure IPv4 address and compared
only against the IPv4 networks. This is meant as a convenience to the developer supporting dual-stack systems to avoid having to list IPv4
networks in the array twice like so:
::ffff:192.168.0.0/120, 192.168.0.0/24
Just list IPv4 as IPv4, IPv6 as IPv6, and this routine will convert IPv6-encoded IPv4 addresses automatically. This would make the
following test return a true value:
ipInNetwork( '::ffff:192.168.0.5', '192.168.0.0/24' );
but
ipInNetwork( '::ffff:192.168.0.5', '::ffff:192.168.0.0/120' );
return a false value. This may seem counter intuitive, but it simplifies things in (my alternate) reality.
Please note that this automatic conversion only applies to the IP argument, not to any member of the network array.
hostInDomain
$rv = hostInDomain($host, @domains);
This function checks the passed hostname (fully qualified) against each of the domains in the list and returns true if there's a match.
None of the domains should have the preceding '.' (i.e., 'foo.com' rather than '.foo.com').
extractIPs
@ips = extractIP($string1, $string2);
This function extracts IP addresses from arbitrary text. If you have Socket6(3) installed or running Perl 5.14 or higher it will extract
IPv6 addresses as well as IPv4 addresses. This extracts only IP addresses, not network addresses in CIDR or dotted octet notation. In the
case of the latter the netmask will be extracted as an additional address.
NOTE: in the interest of performance this function does only rough regex extraction of IP-looking candidates, then runs them through
inet_aton (for IPv4) and inet_pton (for IPv6) to see if they successfully convert. Even with the overhead of Paranoid (with debugging and
loadModule calls for Socket6 and what-not) it seems that this is an order of a magnitude faster than doing a pure regex extraction &
validation of IPv6 addresses.
NOTE: Like the ipInNetwork function we filter out IPv4 addresses encoded as IPv6 addresses since that address is already returned as a pure
IPv4 address.
netIntersect
$rv = netIntersect( $cidr1, $cidr2 );
This function is an IPv4/IPv6 agnostic wrapper for the ipv{4,6}NetIntersect functions provided by Paranoid::Network::IPv{4,6} modules. The
return value from which ever function called is passed on directly. Passing this function non-IP or undefined values simply returns a
zero.
DEPENDENCIES
o Paranoid
o Paranoid::Network::Socket
o Paranoid::Network::IPv4
o Paranoid::Network::IPv6
BUGS AND LIMITATIONS
AUTHOR
Arthur Corliss (corliss@digitalmages.com)
LICENSE AND COPYRIGHT
This software is licensed under the same terms as Perl, itself. Please see http://dev.perl.org/licenses/ for more information.
(c) 2005, Arthur Corliss (corliss@digitalmages.com)
perl v5.14.2 2012-05-29 Paranoid::Network(3pm)