Comments on: RHEL: Linux Bond / Team Multiple Network Interfaces (NIC) Into a Single Interface

By: musa

musa — Wed, 08 Feb 2012 11:22:07 +0000

Hi everyone who are happy with this tutorial,

Would you kindly let me know if i should configure IPs (public) on my WAN interfaces of centos 5.5 if i need to bond them?…
this tutorial hasn’t explained it with some dummy IPs.
i am totally confused as which IPs to assign on WAN interfaces and which IP to assign to bond0 interface in such scenario.

Regards

By: ravi

ravi — Thu, 22 Dec 2011 22:47:48 +0000

Excellent it worked !!!!

By: Netwall Expert

Netwall Expert — Thu, 08 Dec 2011 13:33:46 +0000

Dear all,
scenario is very simply,
I’ve Two ISPs with 256 nos of Real IPs for Lan side from both ISPs.
first ISP giving me 10 mbps of bandwidth and second ISP on 5 mbps of bandwidth.
I need to configure bonding network for my LAN users can access high bandwidth over 15 mbps of data means both bandwidth give data to user at full speed and Lan user also have a Real IP.
Is this scenario possible to create and How?
Current Setup
ISP 1 IP ETH0 – 202.54.15.2/255.255.255.252/DG 202.54.15.1
ISP 2 IP ETH2 – 202.54.16.2/255.255.255.252/DG 202.54.16.1
LAN Side ETH1 202.54.15.129/255.255.255.128
LAN Side ETH1:1 202.54.16.129/255.255.255.128

Please guide me how to create BOND of these king of Network

Thanks in Advance to all of you

Merry XMAS 2011

By: RK_RAJ

RK_RAJ — Mon, 24 Oct 2011 12:23:43 +0000

Hi friends,

By following this howto, I configured load balancing method of bonding with my 2 NICS in CentOS 5.5 X64 it works well without a single hitch, thanks for your tutorial

By: Tri Aji Wibowo

Tri Aji Wibowo — Wed, 05 Oct 2011 10:24:56 +0000

Hi Gael,

I think you must be hash your config MASTER=bond0.
Try this:

DEVICE=eth(x)
USERCTL=no
ONBOOT=yes
#MASTER=bond(x)
SLAVE=yes
BOOTPROTO=none

-TA-

By: Arno

Arno — Sat, 10 Sep 2011 22:29:50 +0000

I see that is posible to bound more than 2 NIC`s with eachother, but my questions as following.
I have TP-Link TL-SG1016 (http://www.tp-link.com/uk/products/details/?categoryid=1588&model=TL-SG1016) and my mainboard is an Asus P5Q Premium that has 4 NIC`s onboard. i use it as a server with raid 5. I ask you, does the switch need also the trunk option to bound your NIC`s?

By: Kevin Pham

Kevin Pham — Tue, 06 Sep 2011 01:28:54 +0000

Thanks for the great doc! May I add a note please…

When the “modprobe bonding” command is issued, it may unload and reload the network modules and you’ll loose connection to the remote server and you may not be able to issue the next command. To make sure things work without loosing connection to the server, we can put both commands together in the same line

# modprobe bonding; /sbin/service network restart

Kevin

By: Vivek M Garg

Vivek M Garg — Tue, 09 Aug 2011 14:56:31 +0000

Configuration was simple & worked perfectly well.
Got High throughput (HT) as well as High availability (HA) with the bond.
However after a reboot did not get HT or HA.

ifconfig is showing only bond0 & eth0.
eth1 is not visible in ifconfig. However it’s visible in ifconfig -a.
cat /proc/net/bonding/bond0 is also showing only bond0 & eth0.

What to do to sustain the bond after a reboot ? Please help !

By: Nick

Nick — Fri, 22 Jul 2011 10:09:50 +0000

Is it possible to apply this technique to a couple of USB data modems but use it to stream to another box – does the data stream have to be re-combined at the other end somehow to retain sync?
I’m trying to make a location video streaming solution.

Thanks

By: William Peckham

William Peckham — Sun, 10 Jul 2011 17:17:44 +0000

Mostafa: That is a router issue, you need to configure your router to pass outside traffic on port 22 ( and any other service ports you want to use for access from ‘outside’) to your server. It has nothing (IMOHO) to do with port bonding.

By: Mostafa

Mostafa — Fri, 08 Jul 2011 17:43:37 +0000

I have a PC and DSL connection. It`s OS is OpenSuse and router is from DLink. My PC can connect to Internet throw DSL and it is possible to ping it (it has static IP) but it is not possible to access SSH server from it.
It has 2 network interface, eth0 and dsl0. eth0 make a connection to the DLink router and dsl0 (which tack static ip) connect to the internet.
I need to access My PC from internet but it is not possible. Is it possible to solve my problem with bounded interfaces?
I`m new in linux, please help me. Thanks.

By: kumar

kumar — Wed, 06 Jul 2011 15:55:44 +0000

Hi All
Another point to be added… Both the nics are connected to single Cisco 4500 switch and the round robin was also changed to fault tolerant (active-standby). Request your help
Reg Kumar

By: kumar

kumar — Wed, 06 Jul 2011 15:52:02 +0000

Hi
I am facing some sort of a peculiar issue. As per the step 1,2,3 i have done the bonding. Issue here is when i remove the eth1 physical port., the pinging will continue, but if i remove eth0 after eth1 is fixed back…GONE.. my network ping shows REQUEST TIME OUT. if i fix back the n/w cable no way still RTO.
Below is the h/w details for better understanding.
BL 460c G7, embedded 553i emulex 10G nic, connected to 1GB Ethernet Pass Thru, RHEL 5.6 x64.. Can anybody share your inputs to resolve this issue at the earliest…
Thanks … Vijay

By: Ethan Case

Ethan Case — Tue, 05 Jul 2011 08:14:32 +0000

LinuxTitli:
Thank you for this!! You made it super easy! (or maybe I’m finally learning linux)
To Bret, and others wanting to do Protocol Binding:
I’m pretty sure there is a method to do this in Linux, but you can also do this using a hardware-firewall. I use a Netgear SRX5308 – it’s a quad-WAN/LAN firewall. I have multiple static ip’s from different isp’s – using Protocol Binding on the firewall/router, I can set specific traffic to pass through certain WAN ips.

By: EllisGL

EllisGL — Wed, 22 Jun 2011 02:39:51 +0000

Thanks. That did the trick. I had issues with it half working and this totally fixed my issues.

By: Vivek Gite

Vivek Gite — Thu, 09 Jun 2011 23:19:49 +0000

eth1 - 202.54.1.1 bound https port to this ip
eth0 - 202.54.1.5 bound ssh and http port to this ip

Use plain old good IPtables to deny everything on eth1 interface except port 443 (https). Same goes for eth0 interface, block everything except port 80 (http), 22 (ssh) and other required port.

By: William Peckham

William Peckham — Thu, 09 Jun 2011 15:07:09 +0000

BRET
Interesting question, but WAY off topic. That has nothing to do with port binding.

By: Bret

Bret — Thu, 09 Jun 2011 01:25:37 +0000

Hi Nixcraft,

I have got one linux server (CentOS 5 installed) with two NIC interface (eth0 & eth1) on it.

I want to configure server so that
- Only http and ssh traffic goes to/from eth0 interface (with IP-filtering) and
- Only https (external access) via eth1 interface. No other traffic allow on eth1 interface.

Is this possible to configure?

Thanks in advance,
Bret

By: Jarvis Semien

Jarvis Semien — Fri, 03 Jun 2011 17:21:00 +0000

Please let me know if you guys found a fix for this. Thanks in advance

By: Tarun

Tarun — Wed, 04 May 2011 09:44:59 +0000

Thanks dear….
Good document…