LinuxQuestions.org - [ASK] - How to add IP Route using Channel Bonding in RHEL6

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[ASK] - How to add IP Route using Channel Bonding in RHEL6

Hi All,

I have question about IP Route using Channel Bonding in RHEL6.

For example I have 1 machine with 4 Ethernet and I will create 2 channel bonding that connect to 2 different switches in different VLAN with following details:

eth0 to switch A (VLAN1, gateway: 10.1.0.1/28)
eth1 to switch B (VLAN1, gateway: 10.1.0.2/28)
eth2 to switch A (VLAN2, gateway: 10.1.0.10/28)
eth3 to switch B (VLAN2, gateway: 10.1.0.11/28)

Current Config:

Code:

cat etc/modprobe.d/bonding.conf 

alias bond0 bonding

alias bond1 bonding



cat /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0

NM_CONTROLLED="no"

BOOTPROTO=none

ONBOOT=yes

TYPE=Ethernet

USERCTL=no

BONDING_OPTS="mode=1 miimon=100 primary=eth0"

IPADDR=10.1.0.4 

NETMASK=255.255.255.240

GATEWAY=10.1.0.1



cat /etc/sysconfig/network-scripts/ifcfg-bond1

DEVICE=bond1

NM_CONTROLLED="no"

BOOTPROTO=none

ONBOOT=yes

TYPE=Ethernet

USERCTL=no

BONDING_OPTS="mode=1 miimon=100 primary=eth2"

IPADDR=10.1.0.13 

NETMASK=255.255.255.240

GATEWAY=10.1.0.10



cat /etc/sysconfig/network-scripts/ifcfg-eth0 

DEVICE="eth0"

NM_CONTROLLED="no"

ONBOOT=yes

TYPE=Ethernet

BOOTPROTO=none

MASTER=bond0

SLAVE=yes

USERCTL=no

DEFROUTE=no

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="System eth0"

PEERDNS=yes



cat /etc/sysconfig/network-scripts/ifcfg-eth1 

DEVICE="eth1"

NM_CONTROLLED="no"

ONBOOT=yes

TYPE=Ethernet

BOOTPROTO=none

MASTER=bond0

SLAVE=yes

USERCTL=no

DEFROUTE=no

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="System eth1"

PEERDNS=yes



cat /etc/sysconfig/network-scripts/ifcfg-eth2 

DEVICE="eth2"

NM_CONTROLLED="no"

ONBOOT=yes

TYPE=Ethernet

BOOTPROTO=none

MASTER=bond1

SLAVE=yes

USERCTL=no

DEFROUTE=no

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="System eth2"

PEERDNS=yes



cat /etc/sysconfig/network-scripts/ifcfg-eth3 

DEVICE="eth3"

NM_CONTROLLED="no"

ONBOOT=yes

TYPE=Ethernet

BOOTPROTO=none

MASTER=bond1

SLAVE=yes

USERCTL=no

DEFROUTE=no

IPV4_FAILURE_FATAL=yes

IPV6INIT=no

NAME="System eth3"

PEERDNS=yes

QUESTIONS:

Is that configuration above correct for channel bonding? If not please help to made correction
How to configure to add route to made the server unable to ping/access from the computer with IP: 10.2.0.17/24 Gateway: 10.2.0.1 and IP: 10.2.2.10/24 Gateway: 10.2.2.1?

Many thanks for help

Well, generally this how its done.

1. Bond interfaces

2. create virtual interfaces which corresponds to your network vlan setup ( you will need to configure bridging).

I can guide you how to get it done, but first, lets get bonding out of the way!

Your config seems okay, have you tried applying it? if so, have you rebooted your system?

Quote:

cat /proc/net/bonding/bond0

You should see an output like this.

Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009)

Bonding Mode: adaptive load balancing
Primary Slave: None
Currently Active Slave: eth1
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:26:6c:f0:79:20
Slave queue ID: 0

Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:26:6c:f0:79:21
Slave queue ID: 0

Hi amlife,

Yes the configuration for channel bonding works in my server, but I didn't test if primary Ethernet down. For example for Bond0 if eth0, I'm not sure eth1 will take over due the physical to different switch with different gateway with eth0

Please also help me to answer my 2nd question

Quote:

2. How to configure to add route to made the server unable to ping/access from the computer with IP: 10.2.0.17/24 Gateway: 10.2.0.1 and IP: 10.2.2.10/24 Gateway: 10.2.2.1?

there are number of ways to get it done, I would prefere to use iptables to control the traffic

iptables -A INPUT -s 10.2.0.17 -j DROP
iptables -A OUTPUT -d 10.2.0.17 -j DROP

iptables -A INPUT -s 10.2.2.10 -j DROP
iptables -A OUTPUT -d 10.2.2.10 -j DROP

Hi alife,

How do I put the iptables config that you describe below? this should be done on router/switch or I should create config on the server?

Quote:

Originally Posted by amlife (Post 4864297)

ptables -A INPUT -s 10.2.0.17 -j DROP
iptables -A OUTPUT -d 10.2.0.17 -j DROP

iptables -A INPUT -s 10.2.2.10 -j DROP
iptables -A OUTPUT -d 10.2.2.10 -j DROP

You just need to run the commands one by one at the shell, then run iptables -L to verify