There are several deployment scenarios where it is necessary to use overlapping IP addresses in your account. The IP Overlapping feature provides greater flexibility in network design and enables your account to route traffic to sites with overlapping IP addresses.
The routing decision is based on the shortest IP range.
Make sure that the account meets the following requirements before you enable IP Overlapping:
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You can only enable IP Overlapping on an account that does NOT use Static Range Translation
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One range must be smaller and fully contained within the other range
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All Sockets in the account must be version 6.1 and higher
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Make sure that each site has a unique IP address for the Native Range. You cannot duplicate an IP address between different sites
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The IP range for remote access users or the Cato system range can't be contained within an overlapping range
The default Cato system range is 10.254.254.0/24
Use the System Settings window to enable the IP Overlapping feature for the account.
Note
IMPORTANT! Enabling the IP Overlapping feature is a permanent change for the account. After you enable it, you cannot undo or disable this feature.
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