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Dirk Deimeke
*nix forums beginner
Joined: 15 Jul 2005
Posts: 30
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 Posted: Tue Jun 20, 2006 9:47 am Post subject:
ip_forwarding required ...
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Hi,
I know that ip_forwarding is enabled on hpux by default. I also know,
that I can disable it by using ndd or /etc/rc.config.d/nddconf.
Can you please tell me, if ip_forwarding is required by Mission
Critical?
Thanks in advance
Dirk |
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Ken Green
*nix forums beginner
Joined: 16 Jun 2006
Posts: 5
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| Posted: Tue Jun 20, 2006 1:41 pm Post subject:
Re: ip_forwarding required ...
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Dirk Deimeke wrote:
| Quote: | Hi,
I know that ip_forwarding is enabled on hpux by default. I also know,
that I can disable it by using ndd or /etc/rc.config.d/nddconf.
Can you please tell me, if ip_forwarding is required by Mission
Critical?
Thanks in advance
Dirk
|
ip_forwarding is only needed if you want to be router.
You do not normally want your HP-UX machines to be routers. |
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Dirk Deimeke
*nix forums beginner
Joined: 15 Jul 2005
Posts: 30
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| Posted: Wed Jun 21, 2006 3:31 am Post subject:
Re: ip_forwarding required ...
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Ken Green <kena8@a8hex.com>:
| Quote: | ip_forwarding is only needed if you want to be router.
You do not normally want your HP-UX machines to be routers.
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That is exeactly what I think.
HP has ip_forwarding turned on by default ...
Dirk
--
http://www.deimeke.net/dirk/blog/ |
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Kevin Collins
*nix forums Guru Wannabe
Joined: 11 Mar 2005
Posts: 216
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| Posted: Wed Jun 21, 2006 7:05 pm Post subject:
Re: ip_forwarding required ...
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In article <85rmm3-em1.ln1@dirk.deimeke.net>, Dirk Deimeke wrote:
| Quote: | Ken Green <kena8@a8hex.com>:
ip_forwarding is only needed if you want to be router.
You do not normally want your HP-UX machines to be routers.
That is exeactly what I think.
HP has ip_forwarding turned on by default ...
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Why think? Its better to examine the facts:
ndd -h ip_forwarding
ip_forwarding:
Controls how IP hosts forward packets: Set to 0 to inhibit
forwarding; set to 1 to always forward; set to 2 to forward
only if the number of logical interfaces on the system is 2
or more. [0,2] Default: 2
So, what that says is that IP forwarding is enabled by default, but *only* if
you have multiple NICs.
Kevin
--
Unix Guy Consulting, LLC
Unix and Linux Automation, Shell, Perl and CGI scripting
http://www.unix-guy.com |
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Dirk Deimeke
*nix forums beginner
Joined: 15 Jul 2005
Posts: 30
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| Posted: Thu Jun 22, 2006 5:19 am Post subject:
Re: ip_forwarding required ...
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Kevin Collins:
| Quote: | So, what that says is that IP forwarding is enabled by default, but *only* if
you have multiple NICs.
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Otherwise forwarding does not make any sense, does it?
Dirk
--
http://www.deimeke.net/dirk/blog/ |
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Kevin Collins
*nix forums Guru Wannabe
Joined: 11 Mar 2005
Posts: 216
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| Posted: Fri Jun 23, 2006 4:27 pm Post subject:
Re: ip_forwarding required ...
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In article <9rlpm3-0n1.ln1@dirk.deimeke.net>, Dirk Deimeke wrote:
| Quote: | Kevin Collins:
So, what that says is that IP forwarding is enabled by default, but *only* if
you have multiple NICs.
Otherwise forwarding does not make any sense, does it?
|
Well, not really, but there is an option (1) that sets it on always... :)
Kevin
--
Unix Guy Consulting, LLC
Unix and Linux Automation, Shell, Perl and CGI scripting
http://www.unix-guy.com |
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Ken Green
*nix forums beginner
Joined: 16 Jun 2006
Posts: 5
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| Posted: Thu Jun 29, 2006 1:59 pm Post subject:
Re: ip_forwarding required ...
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Kevin Collins wrote:
| Quote: | In article <9rlpm3-0n1.ln1@dirk.deimeke.net>, Dirk Deimeke wrote:
Kevin Collins:
So, what that says is that IP forwarding is enabled by default, but *only* if
you have multiple NICs.
Otherwise forwarding does not make any sense, does it?
Well, not really, but there is an option (1) that sets it on always... :)
Kevin
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Well you can have multiple IP addresses on one LAN card, and route
between them.
Also if you deliver a packet with the wrong IP address, but the right
MAC addresses then HP-UX will forward it on to the system listed in it's
arp table. |
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