similar to: multipath algorithm

I''m a little confused about the many ways I''ve read that can be used for traffic load balancing, that is, two or more interfaces to the outside world being used transparently and efficiently by the internal machines. I heard about: a) netfilter SNAT to more than one IP. If I''m correct, this is only a round robin, that is, one connection goes here, the other goes there,

--------------eth0---80.48.56.70---------- -------------80.48.56.65 ISP | my | router1 | | | linux | | | router2 ------------eth1---192.168.200.10----- ----------------192.168.1.1 ISP I''ve two ip from my isp one public and one internal. ISP have two routers router1 is gw for public ip and router2 is gw for internal

I have question about multipath routing. I am running a 2.6.7 kernel (gentoo). I have a route with three nexthops on the same interface. I see a different nexthop being picked for different destination addresses. All is fine. Now if one of the nexthop goes down (arp entry times out and arp request doesnt get a response), does it remove the nexthop from contention and only use the remaining two

snat not working my local ip is aaa.aaa.aaa.aaa asterisk sitting on the internet at ip bbb.bbb.bbb.bbb my firewall''s internal ip is 192.168.0.254 i did snat: iptables -t nat -A POSTROUTING -o ppp0 -j SNAT --to aaa.aaa.aaa iptables -t nat -L -v gives: Chain POSTROUTING (policy ACCEPT 23663 packets, 2182K bytes) pkts bytes target prot opt in out source destination 33056

hi all, i have been able to find only a trickle of information concerning possible strategies for a 2 adsl setup using two different isp''s. has anyone had experience in the usa or elsewhere working with their providers to carry bgp tables, or would you recommend/implement a round-robin arrangement? how ? :-) yours sincerely christopher cuse, rhce/ccna ccuse@tiscali.fr redhat 8.0

hi for those who was fallowing this topic I can say that IP_ROUTE_MULTIPATH_CACHED must be disabled! After few tests I''m quite sure that this was cousing my problems. Now I''m using 2.5.15 kernel without patch of Julian Anastasov and load-balancing is working. lartc split-access how to and http://www.ssi.bg/~ja/nano.txt now both are working fine Now I will try to use fwmark

I''ve applied julian''s paches to a 2.6.14 gentoo kernel with the appropiate options enabled, and i''m using a modified version of the mpath2.sh script also available on julian''s site http://www.ssi.bg/~ja/ Overall everything works nearly perfectly. Incomming connections to either the fios (PPPoE) connection, or cable modem get routed back out correctly. The

Hello, I have configured a load balancing router using Julian''s patches and as described in "nano.txt" for two ISP links as shown below. ISP 1 ISP 2 . . | | | | | | | WAN

Dear List. I try to build multipath connection w/ load balance to internet with two different gateway; My system is RH-8.0 with iproute-2.4.7-7.90.1.rpm and Kernel-2.4.26 (patching with Julian A. patch),and follow guide from http://www.linuxvirtualserver.org/~julian/nano.txt, The problem is; when i try to connect to Internet form gateway machine it;s success , but only one interface is

Hello, I hope i wont make it too complicated and sorry for my englihs... The company has multiple connections to the internet ADSL + CABLE + XDSL... and i only want to use two for load balancing for now. I have read the HOWTO and i got it up and working it works great but i still have a few questions if anyone could help! the setup is: ADSL on ETH0 and CABLE on ETH1 When i load balance on

Hi, I have a linux server running kernel 2.6.19 that is connected with 2 seperate 100Mbit links to the same isp: +---+ +---------------+ | I | +---------------+ | | | S | | | | eth0 --+--------------+ P | | |

Ok ive been trying to get this to work for about half a year now. Ive searched all over the internet for a solution for my problem. Ive found some solutions, but they only led me to yet more problems. What we want to do is the following: I live in a student complex with 7 other people. Every room has its own internet connection from the same ISP. Ip, gateway, subnet are asigned through dhcp on

To begin with I have not applied and am not using the patches provided by Julian Anastasov. http://www.linuxvirtualserver.org/~julian/ I do not believe at the moment they apply to the problem I am having. If they are I will go through the process of applying the patch. They mostly have to due with what happens when a connection dies. At the moment both of my connections are live, and I am having

I''m sure that I had found (and printed out ...) a really good tutorial that explain how to use Julian Anastasov''s routing patch, but I can''t seem to find it now. Any pointers? -- ****************************************************************** Glen W. Mabey Glen.Mabey@usu.edu http://mabeys.homelinux.com/glen/

Hello! I have trouble with multipath routing. Those options are enabled in kernel: [*] IP: policy routing [*] IP: equal cost multipath [*] IP: equal cost multipath with caching support (EXPERIMENTAL) <*> MULTIPATH: round robin algorithm But issuing: ip r a 1.2.3.0/23 scope global equalize nexthop via 80.245.176.11 \ dev eth0 weight 1 nexthop via 80.245.176.13 dev eth0

Hi There, We currently using iproute2 for load balancing. However we need more upload speed as we load balance over 3 dsl lines. I''ve been looking for a way to combine the upload speed to more faster. Found a site called www.upstreaminter.net where these guys bond the adsl channels to improve uploads, Since downloading is problem as its need to know the ip address of the downloader they

Hello. I have the problem that I have two gateways on the same subnet, 80.237.244.1 and 80.237.244.33. Both gateways are 100 MBit cards, so I have 2 times 100 MBit to the Internet. The NIC in the server is a gigabit-card, so this card is easy able to use both gateways for outgoing traffic. Now I just want to use both gateways for my outgoing traffic but no matter what I do, it doesnt work. I

Hi, I have a linux box loaded with RH7.1, 3 ethernet with load balance on 2 ISP. In theory, if one router stop to work (I have turn off for this try), the Dead Gateway Detection, would re-instradate alla traffic on other link. This not work...someone have more experience on this? Giorgio Biondi

Hi. I''ve trying to balance outgoing traffic by using multipath routes, but I can''t get it to work. Only one of the routes are used. I''m adding the route like this: ip route add table 101 default \ nexthop via X.X.X.X nexthop via Y.Y.Y.Y It shows up the routing table like this: default nexthop via X.X.X.X dev vlan110 weight 1

Hi, I have a linux box which balances load between two interfaces ( say WAN1 and WAN2). I have masquerading on for any request coming from LAN to the outside world. The setup is in such a way that WAN1 drops packets with source ip belonging to WAN2''s network and viceversa. For some strange reason, I find that packet coming out from the WAN interface has source address of WAN2 and