similar to: Re:Multipath Masquerade

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

Dear all, I''ve the following problem with routing + NAT: If I''ve two ISP and I''m using two nexthop in default route with MASQUERADE on both ISP links, I see routing cache regenerated, but sometimes packets sent to a new link (after cache regeneration) uses wrong source address for masquerading. Here is the config. I''ve two links to outside via two

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

Hi, I have a linux-box with 3 eth, 2 of us go into 2 ISP. My localnet is masquerade with this rule: Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination SNAT all -- 10.0.0.0/16 anywhere to:211.56.233.186 SNAT all --

Hi, My friend uses ipchains with kernel 2.4.21 :) It''s funny but it''s true. The problem is that he marks the packets and after this the tc filter doesn''t catch them. ipchains -A input -s 192.168.1.41/28 -j ACCEPT -m 0x2 -t 0xff 0x2 ipchains -A forward -s 192.168.1.41/28 -j MASQ -m 0x2 ipchains -A input -s 192.168.1.240 -j ACCEPT -m 0x3 ipchains -A forward -s

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

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

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

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

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, > 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 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:

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 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 _______________________________________________

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

Okay here is my setup: Gentoo Box running 2.6.4 w/ 4 NICs 1 NIC is for internal network 3 NICs are for external network The machine has a static address assigned to the internal network nic. This nic runs dhcp and dns forwarding. The other 3 nics have external dynamic IP addresses. All will have the same gateway. There are 3 NICs because this is a very large pipe, that will only allocate a

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