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Nickolai Zeldovich authored
LWIP can generate packets with a source of 0.0.0.0, which triggers an assertion failure in arp_table_add(). Instead of crashing, simply return to avoid adding an invalid ARP table entry. Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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