Routing problem : two interfaces one gateway Post: 302920719

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Special Forums IP Networking Routing problem : two interfaces one gateway Post 302920719 by gencaslan on Saturday 11th of October 2014 06:16:51 PM

10-11-2014

Registered User

i found out that there is the command brctl. it was in another directory which was not in the path. the output is the following.

Code:

# ./brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.001b11b444de       no              eth1

again the output of route is

Code:

# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.2.0     *               255.255.255.0   U     0      0        0 br0
192.168.2.0     *               255.255.255.0   U     0      0        0 wan0
default         192.168.2.1     0.0.0.0         UG    0      0        0 wan0

ip route show delivers

Code:

# ./ip route show
192.168.2.0/24 dev br0  proto kernel  scope link  src 192.168.2.4
192.168.2.0/24 dev wan0  proto kernel  scope link  src 192.168.2.127
default via 192.168.2.1 dev wan0

ip link show delivers

Code:

# ./ip link show
1: lo: <LOOPBACK,UP> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: MEI_PHY: <UP> mtu 0 qdisc noop
    link/[94]
3: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000
    link/ether 00:1b:11:b4:44:dd brd ff:ff:ff:ff:ff:ff
4: eth1: <BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:1b:11:b4:44:de brd ff:ff:ff:ff:ff:ff
5: gre0@NONE: <NOARP> mtu 1476 qdisc noop
    link/gre 0.0.0.0 brd 0.0.0.0
6: br0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue
    link/ether 00:1b:11:b4:44:de brd ff:ff:ff:ff:ff:ff
7: wifi0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 199
    link/ether 00:19:5b:ed:63:44 brd ff:ff:ff:ff:ff:ff
8: wan0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 0a:1b:11:b4:44:de brd ff:ff:ff:ff:ff:ff
#

i think i need to remove br0 and bridge wan0 to eth1. but i am not sure.

again wan0 is the ehternet port which is connected to my homenetwork (switch).

if i try to remove the interface from the bridge br0 i loose my ssh-connection to the router. so this is no option. removing the bridge does not work because it is denied by brctl. i am a little stuck right now because of my limited knowledge to ip.

i repeat myself but with the recent permanten configuration the internal sip-telephony which needs access to internet works. for a solution i need a simple command that i can enter from the console to use the lan2-4 ports.
any ideas ? thx in advance.

Last edited by gencaslan; 10-11-2014 at 07:49 PM..

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LEARN ABOUT DEBIAN

setether

SETETHER(8)						      System Manager's Manual						       SETETHER(8)

NAME

       setether - Set the ethernet address for use with DECnet

SYNOPSIS

       setether <if> [<if>...]|all [options]

DESCRIPTION

       Set ethernet MAC address on ethernet adaptors

       This  script should be run at system startup. It will change the ethernet hardware (MAC) address of any or all ethernet interfaces to match
       the DECnet node address. DECnet requires that the MAC address of all ethernet adaptors running the protocol be set approriately.  If you do
       not run setether then you must change the ethernet address in some other way for DECnet to work.
       By  default no ethernet interfaces will have their MAC addresses changed by setether, if you specify all then all interfaces name eth* will
       be changed, otherwise a list of interface names can be specified.  setether will enable (UP) all interfaces it changes  the  MAC  addresses
       of.
       (2.4  only) The first interface specified on the command-line will also be made the default interface for DECnet operations (ie attempts to
       contact nodes not in the neighbour table will be done over this interface).
       This script must be run with the interface inactive, it is normally run from /etc/init.d/decnet before TCP/IP starts up.

EXAMPLES

       set the MAC address of eth0.

	   # /sbin/setether eth0

       set the MAC address of all ethernet interfaces

	   # /sbin/setether all

HELPFUL HINTS

       If you have multiple ethernet cards on your system and they are connected to the the same network you should specify which one you want	to
       use  for DECnet communication on the setether command line, otherwise they will both be given the same MAC address and this is probably not
       what you want.
       Running DECnet on multiple ethernet interfaces only works under Linux 2.4. If you are running Linux 2.2 then  the  interface  name  on  the
       setether command line must match the one in /etc/decnet.conf(5).

SEE ALSO

       decnet.conf(5), dntype(1), dndir(1), dndel(1), dnetd(8), dnping(1)

DECnet utilities						   March 01 2001						       SETETHER(8)

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