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Groups > comp.os.linux.networking > #4152

Re: Separate two network bridges on linux

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Le 21/06/2018 à 23:52, Kevin Osthoff a écrit :
> 
> I guess i need to be more specific here.

Yes you do. Specifically, you need to post FACTS, not your 
interpretation of them.

This includes the output of the following command in both setups, with 
an without bridge :

On the router :
ip addr
ip route
ip rule
iptables-save
brctl show
ebtables -Lx
sysctl net.ipv4 | egrep "(\.|ip_)forward"

On hosts in both networks :
ip addr
ip route

> Lets simplify my setup even more and lets remove the bridges and only
> look at the interfaces lan0/eth0 and lan1/eth1 (i renamed eth0 and eth1
> to lan0/lan1 in my setup). Using the same setup as described in my
> previous post, lan0 will have ip address 192.168.10.1/24 and lan1 will
> have ip 192.168.20.1/24. Another pc connected to lan0, which is in the
> same subnet (192.168.10.2) cannot ping 192.168.20.1.

Please post FACTS : what command do you run, what output do you get ?

> This is at least
> my expectation and i verified my expectation by trying this out. But as
> soon as i bridge the interfaces, a ping from subnet 192.168.10.1/24 to
> 192.168.20.1 is possible, even though the bridges don't know each other.

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Thread

Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-21 22:11 +0200
  Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-21 12:30 -0600
    Re: Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-21 23:52 +0200
      Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-21 16:37 -0600
      Re: Separate two network bridges on linux Pascal Hambourg <pascal@plouf.fr.eu.org> - 2018-06-22 21:27 +0200
        Re: Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-23 00:16 +0200
  Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-21 19:36 +0000
    Re: Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-21 23:59 +0200
      Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-21 20:39 +0000
      Re: Separate two network bridges on linux Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-06-22 11:14 +0300
        Re: Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-22 20:18 +0200
          Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 12:35 -0600
            Re: Separate two network bridges on linux Kevin Osthoff <icepic1984@gmx.de> - 2018-06-23 00:10 +0200
              Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 14:36 -0600
                Re: Separate two network bridges on linux Richard Kettlewell <invalid@invalid.invalid> - 2018-06-22 22:23 +0100
                Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 15:37 -0600
              Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 15:46 -0600
              Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-22 22:45 +0000
                Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 17:38 -0600
    Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-21 16:40 -0600
      Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-22 05:38 +0000
    Re: Separate two network bridges on linux Stefan Monnier <monnier@iro.umontreal.ca> - 2018-06-21 22:01 -0400
      Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-22 05:54 +0000
        Re: Separate two network bridges on linux Grant Taylor <gtaylor@tnetconsulting.net> - 2018-06-22 13:40 -0600
          Re: Separate two network bridges on linux Jorgen Grahn <grahn+nntp@snipabacken.se> - 2018-06-23 06:36 +0000
          Re: Separate two network bridges on linux Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2018-06-23 20:18 +0300

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