Re: Multi homing
Re: Multi homing
- Subject: Re: Multi homing
- From: "Duane Murphy" <email@hidden>
- Date: Thu, 3 Oct 2002 19:26:46 -0700
--- At Thu, 3 Oct 2002 18:24:44 -0400, Allan Nathanson wrote:
>
>> If both network interfaces have addresses on the same subnet then your
>
>> traffic "should" go out the top checked port. If the interfaces are
>
>> on
>
>> different subnets then any traffic destined for the local subnets will
>
>> be sent out the appropriate interface. Traffic destined off-network
>
>> will go to the default route (which tracks the top checked port).
>
>
>
> I think this is probably my problem, but I am aware how I could work
>
> around it.
>
>
>
> Index 1) Ethernet Port is attached to my cable modem, and I get my IP
>
> address through DCHP, and the subnet mask is 255.255.255.0
>
>
>
> Index 2) Airport is online to my airport base station who is assigning
>
> the
>
> TCP/IP address from using the standard setting (through DCHP)
>
>
>
> Range of IP address from 10.0.1.n (where n is 2 to 200)
>
> Subnet mask is 255.255.255.0 ( I cannot change this ).
>
>
>
> So I get an address of 10.0.1.2 and subnet of 255.255.255.0
>
>
>
> But I want for IP traffic for address's (10.0.1. 1 to 255 ) to go
>
> through airport.
>
>
>
> Any ideas how I would make this work ??, as I guess this doesn't fall
>
> into
>
> the default case. As I would like specific address's to be routed
>
> through
>
> particular interface.
>
>
It should "just work". As I mentioned in an earlier e-mail, traffic
>
destined for a local subnet (whatever subnet is associated with your
>
cable service) would go out the ethernet port & traffic for the
>
10.0.1.x network would go out via AirPort. Everything else would be
>
passed along to the default route (which, in your case, would be the
>
cable modem). The only thing that would complicate things would be if
>
your cable modem also assigns you an address on the 10.0.1.x subnet.
>
>
Try the following:
>
>
route get 10.0.1.1
>
route get x.x.x.x (some address on the same subnet as your ethernet
>
port)
>
route get y.y.y.y (any valid address not on either of your subnets)
It seems to me part of the problem is DNS. Where do the addresses come
from? How do you get an address for 10.0 versus and address from the
Internet. I wouldnt think two DNS servers would be used.
Your 10.0 addresses could be assigned locally on the host rather than
through DNS and that might work.
...Duane
--
"If tyranny and oppression come to this land, it will be in the
guise of fighting a foreign enemy." - James Madison
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