similar to: Multipath Routing Problem

I have a private lan that is connected to the world via 3 dsl lines. I put up a linux box that handles all the dsl lines, lan gateway and all is working well...until...one of the dsl lines goes down. My routing table is: x.x.x.x dev ppp0 proto kernel scope link src x.x.x.x x.x.x.x dev ppp1 proto kernel scope link src x.x.x.x x.x.x.x dev ppp2 proto kernel scope link src x.x.x.x

We''re trying to figure out how to have equal cost multipath routing using OSPF (quagga) and have come up with the following... Has anyone done something similar? -- How do you deal with incoming services (mail/web/etc) in such a scenario as below - And does anyone have any suggestions? There''s more detail below.... Diagram and overview: Network A connects to Core1 and Core2

I ive set up a working linux router with load balancing as per the lartc guide. Everything is working properly, except for the load balancing does not seem to be equally balance the load. The first line gets about 60% of the incoming load, the 2nd line gets about 40%, and the 3rd line hardly gets any of it at all. The outgoing load is evenly balanced among all three lines. I did not set any

This was my very first post to the lartc mail list... but mailman replied saying there was a problem delivering the message to the recipients... and as I got NO replies at all, I guess no one received it. So I decided to resend it to see if there''s anyone to "bring me into the light" on this one. ;) Can anybody help here? ---------- Forwarded message ---------- From: Edmundo

Hi All, I have a linux router, configured with two internet connections and two lan segments. I''ve setup multipath routing as described in http://lartc.org/howto/lartc.rpdb.multiple-links.html My problem (I think) is that somehow the router will randomly choose incorrect routing paths for different hosts, for example: on my workstation (192.168.1.20), I ssh to a server I have on an

Greetings, I''m trying to set up some sort of load-balancing on a Linux (Trustix) gateway by using multipath routes, however I''m stuck with some problems. The idea is that this gateway (odd as it may seem) only has one external interface, which should route packets to two different gateways (Ciscos). The gateway''s external interface and the routers are all on the same

Hi, I am tring to us ip route to load balance between two interfaces. ip route add equalize 10.200.1.0/24 nexthop via 10.200.0.2 dev neta nexthop via 10.200.0.2 dev neta2 Where neta and neta2 are gre tunnels. Testing show that packets travel in a single sided manner. Do I need to use the multipath (IP_ROUTE_MULTIPATH_CACHED) module? thx jason

Hi, I think I found a problem in iproute or ubuntu kernel. I think that the "ip route get" returns wrong interface and gateway in an multipath routing environment on Ubuntu 6.06 LTS. I reported it also to launchpad as a bug: https://bugs.launchpad.net/ubuntu/+source/iproute/+bug/105521 The easiest way to reproduce it is to start an Ubuntu 6.06 LTS Live on a system with three

Hello, I have set up a multipath gateway. System is a linux 2.4.29 kernel, iproute 20010824, iptables 1.2.11. here is the setup: firewall:/# ip rule 0: from all lookup local 100: from all lookup main 152: from all fwmark 10 lookup wan1 153: from all fwmark 20 lookup wan2 201: from 213.223.96.121 lookup wan1 202: from 82.236.230.217 lookup wan2 1000: from

Hi All, I''ve configured a mutlipath as detailed in the HOWTO. For the most part it''s great, but when the cheap DSL line drops it''s connection, as it regularly does, the outbound routing doesn''t automatically use the remaining path for internal outbound traffic. Ip route show lists no default route once the default path dies, and if the ppp connection is

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

On Tue, Jan 03, 2006 at 11:28:47AM +0100, <Alpt>: ~> On Sun, Dec 25, 2005 at 11:29:21AM +0100, <Alpt>: ~> ~> The multipath code creates new cached routes. Since ~> ~> after connect the socket is "connected", i.e. saddr and ~> ~> daddr are known and they are always provided when resolving ~> ~> route ~> ~> ~> ~> So, the connected

I have two T1s and I'd like to split my SIP traffic over the two. I am looking at this: http://lartc.org/howto/lartc.rpdb.multiple-links.html what bothers me about it is the note "Note that balancing will not be perfect, as it is route based, and routes are cached. This means that routes to often-used sites will always be over the same provider.". If all my traffic goes to the same

Hello all, I am having some difficults to make a routing rule work. I want that every P2P packages go to one interface (eth2 - cheaper link) nad the rest of the traffic go to another interface (eth0 - frame relay very expensive). I am using this script to make the mark and balance: ------- #!/bin/bash IPT="/usr/local/sbin/iptables" IP="/sbin/ip" #---- # Declara redes #----

Hi, There''s some very silly mistake i''ve done in my configuration. I did by reading material on web. I''m enclosing my configuration script below. The problem is its not routing the trafic from other interface in case the first interface is down....which should be the wright case. Kindly please guide me what i can do to make it work..dynamically.. Also there is a

hi i recently searched in the mailinglist archive and found similar problems, whose solutions helped very much, thank you. i have the following scenario: a firewall with one lan interface eth0 10.1.1.1/24 and two uplink interfaces eth1 10.2.2.1/24 eth2 10.3.3.1/24 each uplink interface does SNAT: iptables -t nat -I POSTROUTING -o eth1 -j SNAT --to-source 10.2.2.1 iptables -t nat -I POSTROUTING

Hi all, I have setup two multipath route tables on my system for doing failover routing, What I want it''s that if GW at route1 of the MP is dead, traffic goes by route2, for doing that I have created the multipath routes as follows: ip route add table mail.traffic proto static nexthop via ${GW1} dev eth1 weight 1 nexthop via ${GW2} dev eth1 weight 250 But it does not run as I

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

Previously I attempted load balancing between 3 interfaces with limited bandwidth but a common gateway with much more bandwidth using QoS and teql. This had little to know luck because routes never seemed to come out right. Someone pointed me in the direction of http://www.ssi.bg/~ja/nano.txt to try and set up a multipath route instead. After setting this up it seems that all of the routes are

Hi Can any one point me to any doco on the multipath patches that have been added to the 2.6.13+ There now seems to be modules multipath_cached multipath_random multipath_rr etc Thanks A _______________________________________________ LARTC mailing list LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc