dual homed host
Robert Puyol
puyol at abvent.fr
Mon May 19 17:09:49 PDT 2003
Hi :
I am still trying to set up my dual homed host. This article is a very
good description of what I would like to achieve:
<http://www.freebsddiary.org/ip-address-change.php> &
<http://www.freebsddiary.org/ip-address-change2.php>
Yet it is not working for me. I would like to share with you my guess :
if my alias was a public IP then the set up could/should work, but as
the alias is a private IP behind NAT abd a firewall, there is another
issue, but which one ?
--
Robert Puyol
On Saturday, May 17, 2003, at 11:18 PM, Robert Puyol wrote:
> Hi:
>
> My setup is: one FreBSD server, one interface, two ISP, each providing
> a router. So I would like to set up a dual homed host, to be able use
> the two ISP. From some reading of the FreeBSD documentation and
> gooooooooooogle, here are my questions:
>
> 0) do I need to do a sysctl net.inet.ip.forwarding=1 to get a working
> dual homed host ?
> 1) I set an alias (private IP to use the ISP2): "ifconfig rl0 inet
> 10.0.1.4 netmask 255.255.255.0 alias", the I can ping 10.0.1.4 but not
> the router at 10.0.1.1. What's wrong ?
> 2) I set route: "route add -net 10.0.1/24 10.0.1.1 0", but yet I am
> still not able to ping the router at 10.0.1.1 or to ping my public IP
> from another network.
>
> If I set the defaultrouter=10.0.1.1 (ISP2 router on my network) in
> rc.conf I can use the ISP2 public IP to acces my server, but then I
> loose the access to the primary IP of the ISP1...
>
> Thanks a lot for your help.
> --
> Robert Puyol
>
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