similar to: Multiple default routes

Hello, I''m trying to set up a gateway for a local network to use two dsl lines. Ok, I read the LARTC howto and set up two routing tables and the correct balancing default gw. It works fine for connections originating locally on the gw machine. Then I added two iptables rules on the nat table: iptables -t nat -A POSTROUTING -s 192.168.4.0/24 -o $TI_IF -j SNAT --to-source $TI_IP iptables

Hi William. Thanks a lot for your help. Im having some trouble recompiling my kernel after a installed the patch. Im running RH 7.3 with kernel 2.4.18-3. The patch I installed is routes-2.4.16-6.diff. I got no errors installing it. I added the multipath support, and recompiled it. The make dep and the make bzImage went fine. I got error during the make modules. These are the errors:

Hi, I have a little problem to setup iproute in my network It looks like this: ---- ----- ------ R1 R2 R3 ---- ----- ------ | | | | | | ------------------------------- ETH1 ETH2 ETH3 ETH0 ETH4 -------------> DMZ ------------------------------ | |

Hello, shaping seems to be a hot topic at this list. I hope nobody will be bored with my silly routing problem. What happens if there is a route to a network via two interfaces? From the NAG2: ,----- |While both routes match the destination, one of the routes has a larger |netmask than the other. [...] The larger a netmask is, the more |specifically a target address is matched; when routing

Hi All, I''m a big user of the LARTC document but am currently stuck with a question around section 4.2 (http://lartc.org/howto/lartc.rpdb.multiple-links.html) in relation to "Routing for multiple uplinks/providers". I''m wanting to do a similar setup to the diagram where I have - lets just say for the moment - two uplink providers where I want to route over two

Hello, LARTC mailing readers, I hope u can help with this mysterious issue i''m having with my linux box acting as a router. Scenario: Linux running 2.6.8.1 /w julians patches Latest iproute (iproute2-ss040702) 4 NICS ----------------- | x eth0 (63.43.x.x) network mask (255.255.240.0) | | x eth1 (63.43.x.x)

Hello, LARTC mailing readers, I hope u can help with this mysterious issue i''m having with my linux box acting as a router. Scenario: Linux running 2.6.8.1 /w julians patches /w support for multipath routing Latest iproute (iproute2-ss040702) 4 NICS ----------------- | x eth0 (63.43.x.x) network mask (255.255.240.0) | |

Hi list gurus, long story short we have firewall machine which is the default gateway for our clients and firewall send traffic out to Internet via cisco router. On cisco we have two serial interfaces 1Mb and 2Mb. On firewall #route add default gw xxx.xxx.xx.xxx (for 2mb) #route add default gw xxx.xxx.xx.xxx (for 1mb) and the same rule for Imb link route packets via these two links. However I

I have a Linux with 3 LAN interfaces doing multipath NAT to two internet links via ADSL. The question I have is after I added the default route on each of the routing table, I can''t ping the external interfaces of the Linux from the LAN ( pinging from the Linux itself is OK ). But pinging beyond the two external interfaces ( eg the default route ) is OK. I use symbolic names here :-

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

Hello, LARTC! I''ve been having troubles with load balance with ip + fwmark. I was wondering if these points are mandatory for this scheme to work: 1. Is there any problem if the linux gateway has a default gateway? Do I have to remove it? 2. In the scenario with 4 NICs, one routing table each, and another routing table doing load balance, Do the tables that imply routes that are being

Hi all, My machine has got two network cards and both of them are connected to two different ISPs. I have added two ISPs to my default gateway with same metric. Let a.b.c.d be the IP of 1st network card and e.f.g.h be the ip of the second network card i.e., Card1 - IP=a.b.c.d, Gateway=gateway1.isp1.net Card2 - IP=e.f.g.h, Gateway=gateway2.isp2.net route add -net 0/0 gw

I have a theory on the cause of a problem but it is still only a theory. I wonder if anyone here can confirm. I have a multi-isp configuration with a multi-path default route to each ISP, equally weighted. I am seeing, periodically, traffic dropped due to martian detection and errors logged on inbound traffic, but at other times, that same exact traffic will be allowed, no errors. My

A site I administer has dual T1''s. We have this set up according to NANO-HOWTO[1] using Julian''s routes patch on a late model 2.4 kernel. All is well, has been working well for a long time. Recently one of our T1 providers went belly up and we got something better. Now we have a /28 where previously we only used one IP per interface. Present interfaces: eth0 - T1#1, single

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''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

Hi, I have a problem with my script. I have a debian with a kernel 2.6.8 patched with patch-2.6.8-ja1.diff of nano.txt site. I have 3 internet connections : - eth1 : - ip : 192.168.8.75 - gw : 192.168.8.73 - eth2 : - ip : 192.168.1.200 - gw : 192.168.1.2 - eth3 : - ip : 192.168.2.200 - gw : 192.168.2.1 and my eth0 for

I have a machine with two routes to the internet doing load balancing on the connections and NAT for internal machines. For inbound ssh connections and outbound connections to anything, it will occasionally "lose" packets. If I Control-C out of ssh and try again, it usually works, but not always. After a few tries it does connect, but frequently stalls and hangs permanently. I did

Hello, My name is Fermín Galán and I''m currently working with IPSec tunnels. Recently, I was setting a IPSec tunnelling sample scenario (maybe the simplest one :), where I observed some strange behaviour that I like to describe in the list, just in the case somebody knows what can be the cause, please. The scenario involves four hosts configured in the following way:

Hi, I would like to set up access to Internet via two providers. When they both works OK I use ip route add default scope global nexthop via x.x.x.x dev eth0 weight 1 nexthop via y.y.y.y.y dev eth1 weight 1 Next, I use script that regularly pings their upper providers for see if some of providers are down. If one is down I want to guide all communications via other interface. If second one