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From: "Marc Roos" <M.Roos@f1-outsourcing.eu>
To: lartc@vger.kernel.org
Subject: gretap tunnel redirecting 2 different networks on destination host to nics
Date: Tue, 03 Apr 2018 14:02:04 +0000	[thread overview]
Message-ID: <"H000007100114aa2.1522764124.sx.f1-outsourcing.eu*"@MHS> (raw)


How can I get the 10.11.12.x traffic received on tun1 at host B to eth2, 
and traffic 172.16.1.x to eth1? 

When I put the tun1 interface of server B in a bridge with eth1 I am 
able to ping several 172.16.1.x ip's from server A. And communication on 
this network seems to be ok.

When I add eth2 to the bridge, the whole network goes down. (Because of 
a 'loop'?)
I thought of creating a 2nd gretab tunnel and use each tunnel for a 
network, but I think there is probably a better solution. I also don’t 
think iptables should be necessary, because I don’t want to do any 
natting (However I have default policy DROP on INPUT, OUTPUT, FORWARD)


I have a server A that sends 172.16.1.x and 10.11.12.x traffic via a 
gretab tunnel 192.168.1.x to server B. (Putting vms with a macvtap on 
tun1 on host A)

            +-------------+                             +------------+
 172.16.1.x |      B      |                             |      A     |
     -------|eth1         |         192.168.1.x GRETAP  |            |
            |         tun1|-----------------------------|tun1        |
 10.11.12.x |             |                             |            |
     -------|eth2         |                             |            |
            +-------------+                             +------------+







             reply	other threads:[~2018-04-03 14:02 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-03 14:02 Marc Roos [this message]
2018-04-04 17:58 ` gretap tunnel redirecting 2 different networks on destination host to nics Grant Taylor
2018-04-05  2:00 ` Marc Roos
2018-04-05 16:05 ` Grant Taylor
2018-04-06 16:31 ` Marc Roos
2018-04-06 22:14 ` Grant Taylor
2018-04-07  3:26 ` Marc Roos
2018-04-07  5:10 ` Marc Roos
2018-04-07  9:24 ` Marc Roos
2018-04-21  1:42 ` Grant Taylor
2018-04-21  1:48 ` Grant Taylor

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