DPOD can be configure with two network interface :
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In order to support the second network interface a new routing table and routing rule rules should be defined.
Create New Routing Table
Edit the file /etc/iproute2/rt_tables and add new routing table entry with id "1" named "rt1"
In order to add new routing entry to the new routing table use the "ip route" command.
This command will add new temporary entry to the routing table.Add a default gateway entry :
Code Block ip route add default via <interface default gateway> dev <interface name> table <routing table name>
Example : For adding the default gateway 192.168.1.1 to interface eth1Code Block language bash theme RDark ip route add default via 192.168.1.1 dev eth1 table rt1
Add a routing entry :
Code Block ip route add <destinamtion ip address or subnet> dev <interface name> table <routing table name>
Example : For adding the route entry to subnet 192.168.1.x to interface eth1Code Block language bash theme RDark ip route add 192.168.1.0/24 dev eth1 table rt1
In order to make these entries permanent edit the file /etc/sysconfig/network-scripts/route-<interface name> and add the following :
Code Block default via <interface default gateway> dev <interface name> table <routing table name> <destinamtion ip address or subnet> dev <interface name> table <routing table name>
For example : Create new permanent routing file for interface eth1 and add the entries used at previous examples :Code Block default via 192.168.1.1 dev eth1 table rt1 192.168.1.0/24 dev eth1 table rt1
Create New Routing Rule
The routing rule instruct the operating system when to use the new routing table.
In order to add new routing rule entry to the new routing table use the "ip rule" command.
This command will add new temporary rule entry .Code Block ip rule add from <source subnet of IP address> table <routing table name> ip rule add to <destination subnet of IP address> table <routing table name>
For example : The routing rule for monitored device 192.168.1.120 are :Code Block ip rule add from 192.168.1.120/32 table rt1 ip rule add to 192.168.1.120/32 table rt1
The specific IP address can be replaced with subnet if subnet rule is appropriate : 192.168.1.0/24In order to make these entries permanent edit the file /etc/sysconfig/network-scripts/rule-<interface name> and add the following
Code Block from <source subnet of IP address> table <routing table name> to <destination subnet of IP address> table <routing table name>
For example : The routing rule for monitored device 192.168.1.120 are :Code Block from 192.168.1.120/32 table rt1 to 192.168.1.120/32 table rt1
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