[LARTC] proxy arp and routing

Linux Advanced Routing and Traffic Control

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Sorry, yes.  forwarding is enabled.

David

On Sat, 2 Feb 2002 13:36:23 -0500
"Admin Nplus" <admin@nplus.ca> wrote:

> does ipforwarding is enabled ?
> =1 ?
> 
> ----- Original Message -----
> From: "David Koski" <david@kosmosisland.com>
> To: "LARTC" <lartc@mailman.ds9a.nl>
> Sent: Saturday, February 02, 2002 12:13 AM
> Subject: Re: [LARTC] proxy arp and routing
> 
> 
> > I am not sure what you mean by that but ifconfig shows the correct
> > ip/netmask/broadcast for each ip.  Did I miss something?
> >
> > David
> >
> > On Fri, 1 Feb 2002 23:27:28 -0500
> > "Admin Nplus" <admin@nplus.ca> wrote:
> >
> > > did you tell the linux box what ip is where on what side ?
> > >
> > > ----- Original Message -----
> > > From: "David Koski" <david@kosmosisland.com>
> > > To: "LARTC" <lartc@mailman.ds9a.nl>
> > > Sent: Friday, February 01, 2002 5:41 PM
> > > Subject: [LARTC] proxy arp and routing
> > >
> > >
> > > > Hello,
> > > >
> > > > Given the network map below, I am able to ping any ip on all networks
> from
> > > the
> > > > linux box.  However, from the cisco router, I cannot ping past eth1 on
> the
> > > linux
> > > > box.  The reverse is also true; I cannot ping past eth0 from a host on
> > > LAN.
> > > > proxy-arp is enabled on the linux box and the route to a.b.c.0/24 is
> added
> > > to
> > > > the cisco router.  I haven't a clue why either way, I can only get to
> the
> > > far
> > > > side of the linux box but no further.
> > > >
> > > > On second thought, maybe this is not an application for proxy-arp.
> Your
> > > > thoughts are appreciated.
> > > >
> > > >     T1 to ISP
> > > >         |
> > > >         | /30 net
> > > >         |
> > > > +----------------+
> > > > | cisco router   |
> > > > +----------------+
> > > >         | FastEthernet0/0
> > > >         | a.b.c.1/28
> > > >         |
> > > >  (possible switch/hub here in future)
> > > >  (ip range = a.b.c.1-15)
> > > >         |
> > > >         | a.b.c.2/28
> > > >         | eth0
> > > > +----------------+
> > > > |                |
> > > > |           eth1 |---a.b.c.16/24-public-net-----> LAN
> > > > |                |   (ip range = a.b.c.16-255)
> > > > | linux box      |
> > > > |           eth2 |---192.168.1.0/24-- *
> > > > |                | * (not revelant to discussion)
> > > > +----------------+
> > > >
> > > > David Koski
> > > > david@KosmosIsland.com
> > > > _______________________________________________
> > > > LARTC mailing list / LARTC@mailman.ds9a.nl
> > > > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO:
> http://ds9a.nl/lartc/
> > > >
> > _______________________________________________
> > LARTC mailing list / LARTC@mailman.ds9a.nl
> > http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://ds9a.nl/lartc/
> >


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