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dhcp_snooper: accept DHCP replies destined to broadcast addresses - #186

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edi-oai merged 1 commit into
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dev/edi/dhcp-snooper-broadcast
Jul 30, 2026
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dhcp_snooper: accept DHCP replies destined to broadcast addresses#186
edi-oai merged 1 commit into
mainfrom
dev/edi/dhcp-snooper-broadcast

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@edi-oai edi-oai commented Jul 30, 2026

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Otherwise we may miss a DHCPNAK and continue treating a DHCP lease as active, see RFC 2131, §4.1:

In all cases, when 'giaddr' is zero, the server broadcasts any DHCPNAK messages to 0xffffffff.

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edi-oai merged commit 54b419f into main Jul 30, 2026
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edi-oai deleted the dev/edi/dhcp-snooper-broadcast branch July 30, 2026 17:27
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