Static NAT will not route Second IP Binding

ga...@accessdata.com.au

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Jan 6, 2004, 12:21:12 AM1/6/04

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ga...@accessdata.com.au

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Jan 6, 2004, 12:28:57 AM1/6/04

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We are running SBS 5.1 and have 1 public IP address with a subnet of
255.255.255.252 Our ISP provided us with a second public range of addresses
which have a 255.255.255.240 subnet.
I cannot ping any of the second subnet from the internet.

I have bound both primary IP addresses to the public NIC (I havn't worried
about adding secondary IP addresses yet)and set static and dynamic nat on
the first with a static route of the second ip address to itself which
doen't work. (I have basicly followed TID 10064018)
I am wondering if the problem is that they are on two different subnets.

Any ideas are greatly appreciated.

Gavin Rees
Access Data P/L

Massimo Rosen

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Jan 6, 2004, 8:25:22 AM1/6/04

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Hi,

ga...@accessdata.com.au wrote:
>
> We are running SBS 5.1 and have 1 public IP address with a subnet of
> 255.255.255.252 Our ISP provided us with a second public range of addresses
> which have a 255.255.255.240 subnet.
> I cannot ping any of the second subnet from the internet.

Normal. Netware simply can't handle multiple nets on one NIC due to it's
restriction to one default router.

CU,
--
Massimo Rosen
Novell Support Connection Sysop
No emails please!
http://www.cfc-it.de

Craig Johnson

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Jan 6, 2004, 12:09:22 PM1/6/04

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In article <tIrKb.6326$VM1...@prv-forum2.provo.novell.com>, wrote:
> I have bound both primary IP addresses to the public NIC (I havn't worried
> about adding secondary IP addresses yet)and set static and dynamic nat on
> the first with a static route of the second ip address to itself which
> doen't work. (I have basicly followed TID 10064018)
>

That TID was taken from my tip #51 at the URL below. I know the technique
can work, because I had to set that up (and then wrote the tip).

Can you at least ping the second address on the Internet router? Do you even
have an Internet router in this case? (And if so, is it a Cisco?)

Craig Johnson
Novell Support Connection SysOp
*** For a current patch list, tips, handy files and books on
BorderManager, go to http://www.craigjconsulting.com ***

ga...@accessdata.com.au

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Jan 8, 2004, 1:24:31 AM1/8/04

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No internet router.
We are connected directly to an ADSL modem.

Craig Johnson

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Jan 9, 2004, 8:25:44 PM1/9/04

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I'm trying to think of why this might be having an issue, or how best
to test it.

I would want to know first of all if packets from the internet are even
getting to your server. I would try a tracert to both server public
addresses and compare. I would also think about turning on ARP debug,
and possibly tcp debug, and seeing if there are any ARP packets getting
to the server when you try to ping it from the Internet.

ga...@accessdata.com.au

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Jan 12, 2004, 10:18:24 PM1/12/04

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tracert or ping reply with
reply from 172.24.0.126: Destination Net Unreachable
We are going to apply to the ISP for matching subnets but thanks for the
help.
I like your website. Will come in very usefull.

Craig Johnson

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Jan 13, 2004, 10:04:14 AM1/13/04

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In article <4sJMb.12376$VM1....@prv-forum2.provo.novell.com>, wrote:
> >
> tracert or ping reply with
> reply from 172.24.0.126: Destination Net Unreachable
> We are going to apply to the ISP for matching subnets but thanks for the
> help.
>

Where did you start the tracert from? You need to be on some Internet
connection (other than your own network).

Talk to your ISP about this issue.