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Date:      Fri, 25 May 2001 08:51:43 +0200
From:      "paffio" <ocnlba@tin.it>
To:        "Nick Rogness" <nick@rogness.net>
Cc:        <freebsd-questions@FreeBSD.org>
Subject:   Re: problems with a gateway
Message-ID:  <005001c0e4e7$56ee9af0$2b000b3e@nuovo>
References:  <Pine.BSF.4.21.0105231404400.98953-100000@cody.jharris.com>

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A  142.114.10.210
B  142.114.10.8
G  142.114.10.215
netmask (A,B,G): 0xFFFF0000

they are all on the same logical network.

on A(142.114.10.210):

ping -c 1 142.114.10.8

output:

     PING 142.114.10.8 (142.114.10.8): 56 data bytes
     36 bytes from 142.114.10.215: Redirect Host (New addr:142.114.10.8)
      Vr      HL      Tos     Len      ID      Flg      off         TTL
Pro       cks                   src                              dst
      4        5          00     5414    0111    0         000      fl
01         a1d9       142.114.10.210            142.114.10.8

      64 bytes from   142.114.10.8: icmp_seq=0 .......

but if  now I do another ping it doesn't go through the host G


paffio











----- Original Message -----
From: "Nick Rogness" <nick@rogness.net>
To: "paffio" <ocnlba@tin.it>
Cc: <freebsd-questions@FreeBSD.ORG>
Sent: Wednesday, May 23, 2001 9:09 PM
Subject: Re: problems with a gateway


> On Wed, 23 May 2001, paffio wrote:
>
> >
> > I've a lan with some hosts. I want that all the packets going from the
> > host A to the host B don't go directly to it but through the host G.
>
> Are A,B,and G all on the same logical network.  WHat are their IP
> addresses and netmasks?
>
> >
> > I did it, but I've a problem with my configuration, it works only a
> > time.
>
> What happens when you ping it (not traceroute)?  DO you get an
> ICMP redirect?
>
>
> >
> > I did this (A,B,G are the IP addresses):
> >
> > host A :
> >
> >   route add B G
> >
> > host B :
> >
> >     gateway_enable="YES"  (/etc/rc.conf)
> >
> >
> > Now, if I execute "traceroute B" on the host A, it works, that's the
> > resulting route is A-G-B.
> >
> > On the contrary the second time it is: A-B.
> >
> > I executed also "netstat -r", the first time there is the right entry
> >
> >
> > destination   gateway      ......
> >     B            G         ......
> >
> >
> >
> > the second time it is so splitted:
> >
> >
> >
> > destination        gateway                   ......
> >     B          B_ethernet_address            ......
> >     G          G_ethernet_address            ...
> >
> >
> >
> > Can I avoid this splitting ?
>
> Are B and A on the same IP network?
>
>
> Nick Rogness <nick@rogness.net>
>  - Keep on Routing in a Free World...
>   "FreeBSD: The Power to Serve!"
>


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