Re: Access AIX system from different network subnet
- From: "Green, Simon" <Simon.Green@xxxxxxxxxxxxx>
- Date: Mon, 13 Feb 2006 12:09:09 +0100
You can change it on the fly with...
route -f
route add default 172.20.18.2
You'll also need to change your TCP/IP configuration to set that as the
default route after a reboot.
--
Simon Green
Altria ITSC Europe s.a.r.l.
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-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On Behalf Of
Robert T. Repko (R Squared Consultants)
Sent: 10 February 2006 12:58
To: aix-l@xxxxxxxxxxxxx
Subject: Re: Access AIX system from different network subnet
That looks like my problem, default gateway. Years ago they used to
have this system exposed to the outside world with a gateway of
204.186.115.1. They have since moved the system inside but the
gateway was never changed. How do I safely change the default
gateway? I'm use to going through SMIT but I know there is a more
direct way. Also, it would not surprise me if there is a second IP
address on the system (a 204.186.115.x), how would I remove that
address and make 172.20.18.2 the one and only IP address.
pburgboe#netstat -r
Routing tables
Destination Gateway Flags Refs Use If PMTU Exp
Groups
Route Tree for Protocol Family 2 (Internet):
default 204.186.115.1 UGc 0 0 en0 - -
127/8 loopback U 3 321 lo0 - -
172.20.18/24 pburgboe Uc 0 0 en0 - -
172.20.18.1 pburgboe UHW 1 42 en0 1500 -
172.20.18.83 pburgboe UHW 1 1 en0 - -
172.20.18.103 pburgboe UHW 1 3233 en0 - -
172.20.18.118 pburgboe UHW 5 48235 en0 - -
172.20.18.136 pburgboe UHW 1 30583 en0 - -
172.20.18.242 pburgboe UHW 2 658386 en0 1500 -
204.186.115/24 pburgboe Uc 0 0 en0 - -
204.186.115.1 pburgboe UHW 1 0 en0 - -
Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 16896 -
pburgboe#
Believe it or not at 2/9/2006 11:26 PM, Yves Dorfsman said:
On Thu, 9 Feb 2006, Robert T. Repko (R Squared Consultants) wrote:
Telnet. People on the same subnet have been telneting into the
system for years. This is the first time someone from a different
building (and subnet) is trying to telnet into the AIX
system. Everyone is behind the firewall so it shouldn't be a
problem. My though is because it is a different subnet, which
makes it a different network, that AIX is not accepting the connection.
Looks like your default gateway isn't setup, or not setup properly.
What does "netstat -r" give you ?
Can you ping the default gateway, can you confirm that it is setup
as a router.
Also, can you ping the other way around (from the aix box to the clients) ?
What does traceroute tell you ?
Yves.
----
Yves Dorfsman yves@xxxxxxxxx
http://www.cuug.ab.ca/dorfsmay
http://www.SollerS.ca
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