Gateway load balance

Gelsema, P (Patrick) gelsemap at superhero.nl
Thu Jun 18 14:08:59 UTC 2009


On Thu, June 18, 2009 15:16, Raul I. Becette wrote:
> Gary Gatten escribió:
>> Adding 2 more default routes with same weight to each dsl line won't
>> work?
>>
> I have another problem which I realized just now.
> I configured via rc.conf the ip and netmask below but when I do ifconfig
> the netmask appears as /24
>
> calamardo# cat /etc/rc.conf | grep ifconfig
> ifconfig_nfe0="192.168.10.9 255.255.0.0"

If I am not mistaken, it should be
ifconfig_nfe0="192.168.10.9 netmask 255.255.0.0" or
ifconfig_nfe0="192.168.10.9/16"

see #man rc.conf

> calamardo# ifconfig nfe0
> nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>         options=8<VLAN_MTU>
>         ether 00:1d:60:7e:38:7e
>         inet 192.168.10.9 netmask 0xffffff00 broadcast 255.255.0.0
>         media: Ethernet autoselect (100baseTX <full-duplex>)
>         status: active
>
> This makes impossible to use 192.168.30.100 and 192.168.30.1 since they
> are on different networks and are unreachable (according to ifconfig).
>
>
> ----- Original Message -----
>> From: owner-freebsd-questions at freebsd.org
>> <owner-freebsd-questions at freebsd.org>
>> To: FreeBSD Users <freebsd-questions at freebsd.org>
>> Sent: Wed Jun 17 12:18:07 2009
>> Subject: Gateway load balance
>>
>> Hi all
>>
>> First time posting.
>>
>> I am a long time Linux user (desktop and server) and started with
>> FreeBSD a year ago.
>> Thanks to the book Absolute FreeBSD 2nd Edition I learned a lot about
>> the OS and how to configure different services I used in Linux
>> (Slackware).
>>
>> My post is regarding something I couldn't find information on how to
>> implement it. Here's the situation:
>>
>> I had a proxy server (Squid + Dansguardian) under Slackware on the LAN
>> which, via 'ip route' I make it use 3 gateways connected each one to an
>> ADSL line and balance the requests.
>> Unfortunately my server crashed and I took the oportunity to install a
>> new one under FreeBSD 7.0-RELEASE. Squid and Dansguardian are working
>> fine. My problem is that I don't know how to make the server use the
>> other 2 gateways I have left and balance the requests on all ADSL lines.
>>
>> 192.168.10.9/16                      proxy
>> 192.168.10.2/16                      1st gateway (1 NIC to LAN - 2 NIC
>> to ADSL modem)
>> 192.168.30.100/16                 2nd gateway
>> 192.168.30.1/16                      3rd gateway
>>
>> I found it could be done with PF (also read most of The Book of PF) but
>> I am quite lost about how to do it.
>>
>> Any information would be greatly appreciated.
>>
>> Thanks in advance
>>
>> Raúl I. Becette
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>>
>>
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