Roland Bär 8f228e3035 nic_router: no ICMP on unroutable IPv4 multicast ... The NIC router used to send an ICMP "Destination Unreachable" packet as response to every unroutable IPv4 packet. However, RFC 1812 section 4.3.2.7 defines certain properties that must be fullfilled by an incoming packet in order to be answered with this type of ICMP. One requirement is that the packet is no IPv4 multicast. This commit prevents sending the mentioned ICMP response for unroutable IPv4 multicasts and instead drops them silently. Fixes #4563		2022-08-17 12:26:01 +02:00
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arp.h	net: use Size_guard for packet-data accessors	2018-05-30 13:36:11 +02:00
dhcp.h	net: fix conversion compiler errors	2022-05-25 12:23:02 +02:00
ethernet.h	net: add methods required for WireGuard port	2022-05-25 12:23:02 +02:00
icmp.h	nic_router: incremental L4 checksum updates	2022-08-10 13:33:02 +02:00
internet_checksum.h	nic_router: incremental L4 checksum updates	2022-08-10 13:33:02 +02:00
ipv4.h	nic_router: no ICMP on unroutable IPv4 multicast	2022-08-17 12:26:01 +02:00
mac_address.h	os: avoid implicit conversions	2021-12-17 15:04:45 +01:00
netaddress.h	net: circumvent stringop-overflow error	2021-05-05 11:35:31 +02:00
port.h	net: fix conversion compiler errors	2022-05-25 12:23:02 +02:00
size_guard.h	net: use Size_guard for packet-data accessors	2018-05-30 13:36:11 +02:00
sntp.h	sntp_client: report received transmit timestamp	2019-08-21 12:37:02 +02:00
tcp.h	nic_router: incremental L4 checksum updates	2022-08-10 13:33:02 +02:00
udp.h	nic_router: incremental L4 checksum updates	2022-08-10 13:33:02 +02:00