similar to: multipath routing question

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

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

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 currently have 4 DSL lines set up to load balance for my lan. The multipath works fine for connections the originate from the linux gateway (such as browsing the internet in KDE or using wget), but all the traffic from hosts on the lan is routed through only one of the DSL lines (as seen using ntop and ''ip route show cache'') . What would cause this to happen? Thanks Charlie

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, 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

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

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

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

Hi everybody, I''m not so glad because of the error I describe in the subject. I have two internet lines and I want to do equal cost loadbalancing on the two uplinks to the internet. This is what I do: ip route add 200.200.200.0/24 dev eth2 table 200 ip route add default via 200.200.200.254 dev eth2 table 200 ip route add 100.100.100.0/24 dev eth1 table 100 ip route add default via

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 all Does anyone know if i can use ethernet aliases like eth0:1 in advanced routing like multipath routing in order to avoid to have nxEthernet interfaces in my Linux box. Thansk in advanced -- Guillermo Gomez <ggomez@neotechgw.net> neotech _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO:

Hi, I have setup a ECMP route between two linux systems. I do not have the equalize enabled. This would be flow based. After sending a few ftp/scp sessions I noticed that the ''per flow based'' was jumping between interfaces for just one session. My question is, would this be a result of the routing cache changing between the two ECMP systems. If this is the case would

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

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

Don’t mind my previous post – I figured out the issue, I wasn’t properly setting broadcast addresses in the appropriate areas. I rewrote my script to take this into account and it works great now ☺ _______________________________________________ LARTC mailing list / LARTC@mailman.ds9a.nl http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/

Hi, > iptables v1.2.6a: Unknown arg `--to-source'' > Try `iptables -h'' or ''iptables --help'' for more information. iptables v1.2.6a is way too old for --to-source. Use at least version 1.2.8. If your distribution doesn''t offer it, just get the newest stable release from www.netfilter.org. The other error messages should be verbose enough to

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

Hi, is there any way to route traffic between 2 ECMP routes dependent on the current utilization(packet loss/bandwidth)? For example using OSPF on 2 linux routers with ECMP gre tunnels between them. If the bandwidth on one tunnel starts to exceed a given value the "mechanism" will start sending traffice to the other interface. thx jason _______________________________________________