Hello guys,
Sorry to bothering you.
I had a small network with one ISP and firewall.
eth1 -> Is connected to my ISP
eth0 + eth0.1 , eth0.2 and etc are my local networks.
All my network accesses internet via eth1.
My routing table looks like the following :
213.194.242.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.123.20.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.123.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.123.11.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.8
10.123.42.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.5
10.123.123.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.7
10.123.40.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.4
10.123.30.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.123.44.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0.6
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0.8
0.0.0.0 213.194.242.1 0.0.0.0 UG 0 0 0 eth1
Recently I have added secon provider via ADSL.
ADSL modem is connected via eth0.8 . Using adsl-setup I have created
ppp interface ppp0.
Now I want to achieve the following :
Computers from local network range 10.123.123.0/24 (eth0.7) should
access internet using my second internet provider via ppp0.
I believe that for that I need to use advanced networking and iproute package.
I will add the second routing table named "adsl" and configure routing
via ppp0 there. Together with that i need to set in iptables , nat
table to masquerade all ips going out via ppp0. I believe I need to
use ip command for this.
And the finally my questions are :
1) Is there a good tutorial / howto for using iproute on the internet,
except of the LARTC.org
2) Can i utilize by tools of CentOS, to have my configuration (with
second routing table, using ip ) somehow stored - to be permanent when
I will do machine restart? I mean there are networking-scripts
/etc/sysconfing/network-scripts which can handle, IP assigment,
virtual LANS, aliases even static routes. Can they handle advanced
routing as well?
Thank you milion times.
David Hlacik