(no subject)

Paul freebsd at caspersworld.co.uk
Mon Aug 7 02:16:11 BST 2006


Thanks for the response, and I was kind of hoping that would have not 
been the response.

As a side note, I have posted the thread again, but with a subject 
(Network routing and Multiple ADSL lines) this time. Can all future 
responses go to the thread with the subject, and not this one

Thanks again
Paul

> 
> The problem is the default gateway.  As far as I know only one 
default
> gateway is supported, and allyour return packets are going that 
way.  When
> the packets arrive from your second DSL connection the response is 
sent
> out the first DSL connection, and NAT on that link causes the return
> packets to appear to come from the outside address of your first DSL
> connection, which is NOT the address the original packet was sent 
to, so
> the originator out on the net discards the return packet.
> 
> There are specific commercial solutions to this issue - see BigIP 
for an
> example.
> 
> I would love to hear if anyone has hacked a solution to this into 
BSD...
> 
> j
> 
> On Sun, 6 Aug 2006, Paul wrote:
> 
> > Hi,
> >
> > Im still fairly new to FreeBSD, but have managed to get by untill 
now
> >
> > I run BSD on a DEC alphaserver 4000, with 2 different network cards
> > (de0 and de1)
> >
> >
> > I have 2 ADSL lines coming in to my house, both on ADSL routers.
> > The first one is a 192.168.0.0/24 network. The gateway is on
> > 192.168.0.1, BSD is on de1 using 192.168.0.10 and is used as my
> > general home internet connecting. I have multiple computer 
attached to
> > this network (using windows and BSD) and it used for general 
internet
> > use, listening to online radio and playing online games etc.
> > The second one is a 10.0.200.0/24 network. The gateway is on
> > 10.0.200.1, BSD is on de0 using 10.0.200.10 and is used as a DNS
> > server and file backup server (using rsync to provide offsite 
backups)
> > for a friend (Well thats what I want). There is also a single 
windows
> > box on this network (this box also has a seperate network card,
> > sitting on the 192.168.0.0/24 network)
> > These networks are seperate networks, using seperate routers and
> > switches.
> >
> > The networks looks something like
> >
> >      ______________
> > ADSL|Home network  |
> > ----|192.168.0.1/24|-----------------------------------------------
----
> > ---------------
> >     |______________|     |                |
> > |                |
> >                    ______|_______   ______|_______   ______|_______
> > ______|_______
> >                   |192.168.0.10  | |192.168.0.11  | |192.168.0.101 
|
> > |192.168.0.102 |   etc up to 192.168.0.107
> >                   |FreeBSD Server| |Windows Server| |FreeBSD 
Client|
> > |Windows       |
> >                   |10.0.200.10   | |10.0.200.11   | |Desktop       
|
> > |Desktop       |
> >                   |______________| |______________| 
|______________|
> > |______________|
> >      ______________      |               |
> > ADSL|Server Network|     |               |
> > ----|10.0.200.1/24 |---------------------
> >     |______________|
> >
> >
> > I currently have my default gateway on FreeBSD set to 192.168.0.1.
> >
> > I can connect to the BSD box externally no problems using the IP
> > address from the first ADSL connection.
> > However, any external connection requests I have make on the IP
> > address from the second ADSL connection just times out
> > I have no problems with the Windows server
> >
> > If I swap the default gateway to 10.0.200.1 then the problem gets
> > swapped over.
> >
> > Am I right in thinking I have a routing issue somewhere?
> >
> > I have tried a few different things including tring a few different
> > setups with ipfw and playing with the routing tables, but have had 
no
> > luck
> >
> > What I really want is for the alpha to have a default gateway of
> > 192.168.0.1 (I use it for personal tasks as well as for my 
friend), to
> > be able to connect to it internally from the 192.168.0.0/24 
network,
> > and externally using the IP from the first ADSL line
> > I would also like to be able to connect to it externally using the 
IP
> > address from the seconds ADSL line, so my friend can backup to it
> > using rsync and also use it as a DNS server
> >
> > The reason why I want to use 2 ADSL line is that if I use all the
> > bandwidth on the home ADSL connection (playing games etc) there is
> > still a second ADSL connection purely for rsync and DNS requests.
> > Currently im getting about 10Gb a day being downloaded via rsync
> >
> > At the moment, I have resorted to just using the first ADSL line, 
but
> > I notice a big difference while I try to play online games, if an
> > rsync is taking place
> > I know that I could just limit the speed that rsync transfers at, 
but
> > I really want the transfer to happen as soon as possible and there 
is
> > a second ADSL line that is already being paid for
> >
> > How do I go about trying to get my desired setup, or where should I
> > start to look?
> >
> > Many Thanks
> > Paul
> >
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> >
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> >
> >
> 
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> 
> 

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