Re: Isolating two network processes on same machine

[linux-os]

On Wed, 24 Nov 2004, linux-os wrote:

> On Wed, 24 Nov 2004, Lee Revell wrote:
>
> > On Wed, 2004-11-24 at 11:23 -0500, linux-os wrote:
> > > I was going to say, set the netmask small enough so that both
> > > machines are on different networks and set default routes to
> > > your gateway.... But there is a bug somewhere that doesn't
> > > allow a netmask of anything but 0 in the last byte.
> >
> > Really?  That would be a horrible bug.  How about some references?
> >
> > Lee
>
> Huh? Try it........
>
> Script started on Wed 24 Nov 2004 12:03:43 PM EST
> # ifconfig eth1 1.2.3.4 netmask 255.255.255.7
> SIOCSIFNETMASK: Invalid argument
> # ifconfig eth1 1.2.3.4 netmask 255.255.255.0
> # exit
>
> Script done on Wed 24 Nov 2004 12:04:42 PM EST


Well I guess you can set it to:

eth1      Link encap:Ethernet  HWaddr 00:10:5A:27:7B:16
          inet addr:1.3.4.5  Bcast:1.255.255.255  Mask:255.255.255.252
                                                                   ^^^
          inet6 addr: fe80::210:5aff:fe27:7b16/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:68120 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:3
          collisions:0 txqueuelen:1000
          RX bytes:4383953 (4.1 Mb)  TX bytes:378 (378.0 b)
          Interrupt:22 Base address:0xbc00


That should ne able to isolate the two machines on the same wire.


Cheers,
Dick Johnson
Penguin : Linux version 2.6.9 on an i686 machine (5537.79 BogoMips).
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