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-rw-r--r--interface-ip.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/interface-ip.c b/interface-ip.c
index 0721a84..6900cd7 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -982,7 +982,7 @@ interface_set_prefix_address(struct device_prefix_assignment *assignment,
int mtu_old = system_update_ipv6_mtu(l3_downlink, 0);
if (mtu > 0 && mtu_old != mtu) {
- if (system_update_ipv6_mtu(l3_downlink, mtu) < 0)
+ if (system_update_ipv6_mtu(l3_downlink, mtu) < 0 && mtu < mtu_old)
netifd_log_message(L_WARNING, "Failed to set IPv6 mtu to %d "
"on interface '%s'\n", mtu, iface->name);
}