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Description of problem: If you enter an IP address like: 0.168.175.10 And then proceed with values shown, it will accept this address and it will ultimately get bound to the specified interface. However in section 3.2.1.3 of RFC 1122 (https://tools.ietf.org/html/rfc1122) it states that addresses like these are reserved for finding out the full address of the hosts IP (i.e. its network portion). Here is an excerpt: b) { 0, <Host-number> } Specified host on this network. It MUST NOT be sent, except as a source address as part of an initialization procedure by which the host learns its full IP address. It should also be noted, that even though the address was indeed bound to the interface ssh complains it is an invalid argument: # ssh 0.168.175.10 ssh: connect to host 0.168.175.10 port 22: Invalid argument Version-Release number of selected component (if applicable): QCI-1.1-RHEL-7-20161024.t.0 How reproducible: every time Steps to Reproduce: 1. assign an IP address with an initial octet of 0 in fusor installer 2. apply the changes Actual results: They are applied without error. Expected results: The address to be caught as an invalid IP.
https://github.com/fusor/fusor-installer/pull/103
Verified with QCI-1.1-RHEL-7-20161206.t.0
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2017:0335