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-rw-r--r--src/router.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/router.c b/src/router.c
index f8ba5d7..a45a8cb 100644
--- a/src/router.c
+++ b/src/router.c
@@ -410,7 +410,8 @@ static void send_router_advert(struct uloop_timeout *event)
for (ssize_t i = 0; i < ipcnt; ++i) {
struct odhcpd_ipaddr *addr = &addrs[i];
- if (addr->dprefix > 64 || addr->dprefix == 0) {
+ if (addr->dprefix > 64 || addr->dprefix == 0 ||
+ (addr->dprefix == 64 && addr->prefix == 64)) {
continue; // Address not suitable
} else if (addr->dprefix > 32) {
addr->addr.s6_addr32[1] &= htonl(~((1U << (64 - addr->dprefix)) - 1));