LARTC - Jan 2004 - simple(?!?) source routing

Hi,

I''ve set up a Linux box with redhat on to act as an internet gateway
and I''m running into a few problems.  Its got two adsl modems connected
to it, both connected to seperate 512kbs lines.  Now I''ve followed the
simple source routing in the advanced routing howto to the letter but it doesnt
work.

I''ve got it autoconnecting on startup and redhat puts ppp1 as the
default gateway, this is then setup for masquerading for the entire network. 
Therefore I''ve tried setting up ppp0 as the deafult gateway for only
one computer (10.0.0.11), as it says at
http://lartc.org/howto/lartc.rpdb.html#LARTC.RPDB.SIMPLE I''ve done
everything it says there and im 99% sure I''ve put the right ip addreses
in etc.  When Ive gone through it that computer is no longer able to access the
net (the rest of the network is unaffected).

I''m pretty sure its the way ppp0 is configured, if I set it up so
10.0.0.11 uses ppp1 instead of ppp0 (ip rule add default via xxx.xxx.xxx.xxx dev
ppp1 table chris) it works fine but obviously thers no point in that.

Hope all this makes sence to someone, it baerly does ti me.  May thanks in
advance.

Chris

Hi all,

This is easy. First let ppp0 as your default gateway and 
use iproute to create a table call any name you want and 
then you put ppp1 default route inside that table. After 
that you have to create a rule to put the host you would 
like insede it and dont forget to put a rule in the 
iptables saying that everything going out via ppp1 SNAT -
-to IP_PPP1_EXTERNAL. ;)

[]´s
Anderson

> Hi,
> 
> I''ve set up a Linux box with redhat on to act as an int
ernet gateway and I''m running into a few problems.  Its g
ot two adsl modems connected to it, both connected to sep
erate 512kbs lines.  Now I''ve followed the simple source 
routing in the advanced routing howto to the letter but i
t doesnt work.
> 
> I''ve got it autoconnecting on startup and redhat puts p
pp1 as the default gateway, this is then setup for masque
rading for the entire network.  Therefore I''ve tried sett
ing up ppp0 as the deafult gateway for only one computer 
(10.0.0.11), as it says at http://lartc.org/howto/lartc.r
pdb.html#LARTC.RPDB.SIMPLE I''ve done everything it says t
here and im 99% sure I''ve put the right ip addreses in et
c.  When Ive gone through it that computer is no longer a
ble to access the net (the rest of the network is unaffec
ted).
> 
> I''m pretty sure its the way ppp0 is configured, if I se
t it up so 10.0.0.11 uses ppp1 instead of ppp0 (ip rule a
dd default via xxx.xxx.xxx.xxx dev ppp1 table chris) it w
orks fine but obviously thers no point in that.
> 
> Hope all this makes sence to someone, it baerly does ti
 me.  May thanks in advance.
> 
> Chris
 
__________________________________________________________________________
Acabe com aquelas janelinhas que pulam na sua tela.
AntiPop-up UOL - É grátis!
http://antipopup.uol.com.br/


_______________________________________________
LARTC mailing list / LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/