RE: Multiple routes to the same destination

1. how did you uninstall routed?
2. why not alter routes in a script, you are not going to send packets belonging to the same session in multiple routes would ya?

Christopher Martin <outsidefactor@xxxxxxxxxxxx> wrote:

-----Original Message-----
From: Baldur Gislason [mailto:baldur@xxxxxx]
Sent: Friday, 23 June 2006 10:02 PM
To: Christopher Martin
Cc: FreeBSD Net Mailing list
Subject: Re: Multiple routes to the same destination

Well, round robin is really not what you want with IP packets.
And how are you going to detect that a route is good without a routing
protocol?


Actually, round robin is exactly what I want. And I am not saying I don't
use a routing protocol, in fact I do, but I want packets to be able to use
two or more diverse paths of equivalent cost.

It would seem that you are assuming that I want to load balance two internet
connections which are NATed, in which case round robin might have issues
with lost TCP sessions and weird reactions from servers as the apparent
source address changes from packet to packet, but in a routed internal
network the source address will not be changed by the router, thus negating
that issue.

It did seem at some stage someone was going to include it in OpenBSD:
http://undeadly.org/cgi?action=article&sid=20040425183024&mode=expanded

To quote:
"...OSPF also supports multipath equal cost routing".

It's more of a case where we would like to use BSD as a router/packet
filtering firewall for sites with multiple WAN links between each site, of
equal size, and not have one site idle until the other fails over. Round
robin is better than what we have: nothing.
_______________________________________________
freebsd-net@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@xxxxxxxxxxx"



---------------------------------
How low will we go? Check out Yahoo! Messenger?s low PC-to-Phone call rates.
_______________________________________________
freebsd-net@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • RE: Multiple routes to the same destination
    ... Multiple routes to the same destination ... round robin is really not what you want with IP packets. ...
    (freebsd-net)
  • Re: Traffic Load sharing
    ... the timing differences between the routes ... sending packets via alternating interfaces can lead to different ... alternating interfaces is seldom as effective as load distribution ... distribution rather than per-packet load distribution. ...
    (comp.dcom.sys.cisco)
  • Re: Two NIC cards => Possible to Configure Two Default Routes?
    ... >> since if eth0 receives traffic, then response would be sent back ... >> this topic from past posts, where folks have achieved this using ... Transmitted packets are ... It has two default routes, ...
    (comp.os.linux.networking)
  • Re: Two NIC cards => Possible to Configure Two Default Routes?
    ... > I have two DSL providers, can I configure two default routes that are ... > able to send and receive network packets on both interfaces (eth0 and ... > am guessing that some Linux folks have devised or written their ... Transmitted packets are ...
    (comp.os.linux.networking)
  • Re: OSA-Express, 100mb Token-Ring, QDIO, MTU Size Question
    ... CS IP is not the only platform which describes routes you didn't know you ... there is a sort-of hop from CS IP to the OSA and that packets to the OSA ... The key point from your NETSTAT GATE output is that any packet which is sent ... For IBM-MAIN subscribe / signoff / archive access instructions, ...
    (bit.listserv.ibm-main)