loopback in 4.1.4.0 AIX server Post: 302110383

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Operating Systems AIX loopback in 4.1.4.0 AIX server Post 302110383 by terron79 on Monday 12th of March 2007 05:10:50 PM

03-12-2007

Registered User

loopback in 4.1.4.0 AIX server

Hi:

I�ve a problem in a 4.1.4.0 AIX server because is generating a loopback in its own ip address and this are consuming all the bandwidth.

I did many things trying to solve the problem but it doesn�t help.
1. Flush Routing tables
2. Get Up/Down Network interface
3. Add/remove Network Interface

amtl04<root> netstat -nr
Routing tables
Destination Gateway Flags Refs Use Interface
Netmasks:
(0) 0 ff00
255.0.0
(0) 0 ffff
255.255.252
(0) 0 ffff ffff

Route Tree for Protocol Family 2:
default 10.9.22.1 UG 0 0 en0
10 10.9.22.1 UG 0 0 en0
10.1 10.9.22.1 UG 0 9417 en0
10.8 10.9.22.1 UG 0 62 en0
10.9 10.9.22.1 UG 7 135206 en0
10.9.20 10.9.22.20 U 14 148032 en0
10.9.20.18 10.9.22.1 UG 0 0 en0
10.9.22.20 10.9.22.1 UG 7 3891440 en0
10.9.22.89 10.9.22.1 UG 0 0 en0
127 127.0.0.1 U 4 366 lo0

amtl04<root> netstat -ni
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
lo0 16896 <Link> 381 0 688 0 0
lo0 16896 127 127.0.0.1 381 0 688 0 0
en0 1500 <Link>2.60.8c.e8.d9.b9 4484838 0 4184618 0 0
en0 1500 10.9.20 10.9.22.20 4484838 0 4184618 0 0

amtl04<root> traceroute amtl04
traceroute to amtl04 (10.9.22.20), 30 hops max, 40 byte packets
1 10.9.22.1 (10.9.22.1) 2 ms 2 ms 2 ms
2 amtl04 (10.9.22.20) 3 ms 2 ms 2 ms

Please somebody help me with this issue.

Thanks.

terron79

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LEARN ABOUT NETBSD

lo

LO(4)							   BSD Kernel Interfaces Manual 						     LO(4)

NAME

     lo -- software loopback network interface

SYNOPSIS

     pseudo-device loop

DESCRIPTION

     The loop interface is a software loopback mechanism which may be used for performance analysis, software testing, and/or local communication.
     As with other network interfaces, the loopback interface must have network addresses assigned for each address family with which it is to be
     used.  These addresses may be set or changed with the SIOCSIFADDR ioctl(2).  The loopback interface should be the last interface configured,
     as protocols may use the order of configuration as an indication of priority.  The loopback should never be configured first unless no hard-
     ware interfaces exist.

     The loopback interface lo0 is created at boottime, it always exists and cannot be destroyed with ifconfig(8).  Additional loopback interfaces
     can be created by using the ifconfig(8) create command.

DIAGNOSTICS

     lo%d: can't handle af%d .	The interface was handed a message with addresses formatted in an unsuitable address family; the packet was
     dropped.

SEE ALSO

     inet(4), intro(4), ifconfig(8)

HISTORY

     The lo device appeared in 4.2BSD.

BUGS

     Previous versions of the system enabled the loopback interface automatically, using a nonstandard Internet address (127.1).  Use of that
     address is now discouraged; a reserved host address for the local network should be used instead.

BSD
								 September 3, 2006							       BSD