DPOD can be configure configured with two network interface interfaces:

1. First Interface interface - For for accessing DPOD's Web Console via web browser and DPOD's CLI via SSH.
2. Second Interface interface - For for communicating with the monitored devices.

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Connect the Second Network Interface to the Server

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In some cases there will be a need to restart the server before the new network will be available.

After the server restartrestarts,   the operating system will automatically configure the new network interface  interface using DHCP.

Log in to DPOD's Console or CLI via SSH with the user "root"   and type the command "ifconfig". The command output should be similar to the following screenshot:

The new network interface should be displayed as "eth1".

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1. Edit the file /etc/iproute2/rt_tables and add new routing table entry with id "1" named "rt1"
   
   

   
   

   
   

2. 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.

3. Add a default gateway entry (should be executed only once)
   
   

   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 eth1

   
   

   Code Block
   language bash theme RDark
   ip route add default via 192.168.1.1 dev eth1 table rt1

   
   

   Note
   Adding default gateway to network interface should be executed only once.

   
   
   

4. Add a routing entry  (should be executed as needed for every monitored device)
   
   

   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 eth1

   Code Block
   language bash theme RDark
   ip route add 192.168.1.0/24 dev eth1 table rt1

   
   

   Note
   Adding specific routing entry should be executed as needed for every monitored device

   
   
   

5. 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

   
   

6. To confirm that the new routing table includes the new routing entries use the following command to display the content of the table :
   
   

   Code Block
   ip route show tab <routing table name>

   
   For example : To display the content of table rt1
   
   

   Code Block
   language bash theme RDark
   ip route show tab rt1 The output should be : default via 192.168.1.1 dev eth1 192.168.1.0/24 dev eth1 scope link

   
   

Create New Routing Rule

The routing rule instruct the operating system when to use the new routing table.

1. 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 ip address or subnet> table <routing table name> ip rule add to <destination ip address or subnet> table <routing table name>

   
   For example : The routing rule for monitored device 192.168.1.120 are :

   Code Block
   language bash theme RDark
   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 : 192.168.1.0/24
   
   

2. In order to make these entries permanent edit the file /etc/sysconfig/network-scripts/rule-<interface name> and add the following :
   
   

   Code Block
   from <source ip address or subnet> table <routing table name> to <destination ip address or subnet> 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

   
   

3. To confirm that the new routing rules entries added use the following command to display them :
   
   

   Code Block
   language bash theme RDark
   ip rule show The output should include the following lines 32764: from all to 192.168.1.120 lookup rt1 32765: from 192.168.1.120 lookup rt1

   
   

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