IP address ranges overlap
The IP address of one of the Ethernet ports resides within the IP address range of another Ethernet port. This error can occur when the EtherNet/IP Mode is configured for Dual-IP and the Subnet parts of the IP addresses on the Ethernet ports overlap.
The IP address and Subnet mask values that you assign to an Ethernet port establish an IP address range for the port. The Subnet mask value is used to establish the Subnet part of the IP address.
Here is an example of IP address ranges that do not overlap.
Port Number | IP Address | Subnet Mask/Network Mask | IP Address Range (Low to High) |
A1 | 192.168.1.5 | 255.255.255.0 | 192.168.1.1…192.168.1.254 |
A2 | 192.168.2.1 | 255.255.255.0 | 192.168.2.1…192.168.2.254 |
Here is an example of IP address ranges that overlap.
Port Number | IP Address | Subnet Mask/Network Mask | IP Address Range (Low to High) |
A1 | 192.168.1.5 | 255.255.252.0 | 192.168.0.1…192.168.3.254 |
A2 | 192.168.2.1 | 255.255.255.0 | 192.168.2.1…192.168.2.254 |
Change the IP address and/or Subnet Mask so there is no overlap of IP address ranges.
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