How to block ICMPv4 message type 17 (Address Mask Request) and 18 (Address Mask Reply) with firewalld ?
Issue
- How to block ICMPv4 message type 17 (Address Mask Request) and 18 (Address Mask Reply) with firewalld ?
- Are ICMPv4 message type 17 (Address Mask Request) and 18 (Address Mask Reply) supported by firewalld?
- Why I can't create a rule with firewalld to block ICMPv4 message type 17 (Address Mask Request) and 18 (Address Mask Reply)?
Environment
- Red Hat Enterprise Linux (RHEL)
- 9.0
- 8.0
- 7.0
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