I have a similar question like many asked before I know but Please help as i cant figure out where the problem is and how should I tackle.
I have 2 ISP connections. I want to share the bandwidth from both. I have copied the script from many places and created my own after changes. Problem is that only one connection is utilized at a time. Not both working. ratio of consuming bandwisth between then is around 1:30.
both connections are from dhcp that is dynamic. configuration from 1 ISP remains same and from 1 changes.
EXTERNAL_IP_2="201.81.219.95"
EXTERNAL_NETWORK_2=" 201.81.219.0"
EXTERNAL_GATEWAY_IP_2="201.81.219.1"
echo 200 T1 >> /etc/iproute2/rt_tables
echo 201 T2 >> /etc/iproute2/rt_tables
ip route add 192.168.1.0 dev eth1 src 192.168.1.2 table T1
ip route add default via 192.168.1.1 table T1
ip route add $EXTERNAL_NETWORK_2 dev eth2 src $EXTERNAL_IP_2 table T2
ip route add default via $EXTERNAL_GATEWAY_IP_2 table T2
ip route add 192.168.3.0 dev eth0 table T1
ip route add 192.168.1.0 dev eth1 table T1
ip route add 127.0.0.0/8 dev lo table T1
ip route add 192.168.3.0 dev eth0 table T2
ip route add $EXTERNAL_NETWORK_2 dev eth2 table T2
ip route add 127.0.0.0/8 dev lo table T2
ip route add 192.168.1.0 dev eth1 src 192.168.1.2
ip route add $EXTERNAL_NETWORK_2 dev eth2 src $EXTERNAL_IP_2
ip route add default via $EXTERNAL_GATEWAY_IP_2
ip rule add from 192.168.1.2 table T1
ip rule add from $EXTERNAL_IP_2 table T2
ip route add default scope global nexthop via 192.168.1.1 dev eth1 weight 1 nexthop via $EXTERNAL_GATEWAY_IP_2 dev eth2 weight 2
route command output is
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 * 255.255.255.255 UH 0 0 0 eth1
192.168.3.0 * 255.255.255.0 U 0 0 0 eth0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
201.81.219.0 * 255.255.255.0 U 0 0 0 eth2
default 201.81.219.1 0.0.0.0 UG 0 0 0 eth2
Problem is that the interface which is set gateway is used only. The other one remains idle.
--
Regards,
Arman
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