user/ethdump: fix icmp checksums

1 files changed, 1 insertions, 0 deletions

diff --git a/src/user/app/ethdump/icmp.c b/src/user/app/ethdump/icmp.c
index e23ab01..0c6a502 100644
--- a/src/user/app/ethdump/icmp.c
+++ b/src/user/app/ethdump/icmp.c
@@ -27,6 +27,7 @@ void icmp_send(const void *payload, size_t len, struct icmp i) {
 	pkt[Type] = i.type;
 	pkt[Code] = i.code;
 	memcpy(pkt + Payload, payload, len);
+	nput16(pkt + Checksum, 0);
 	nput16(pkt + Checksum, ip_checksum(pkt, Payload + len));
 	ipv4_send(pkt, Payload + len, i.ip);
 	free(pkt);