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-rw-r--r--src/core/dhcp/nm-dhcp-dhclient.c6
-rw-r--r--src/core/dhcp/nm-dhcp-systemd.c7
2 files changed, 11 insertions, 2 deletions
diff --git a/src/core/dhcp/nm-dhcp-dhclient.c b/src/core/dhcp/nm-dhcp-dhclient.c
index 53d1ba760d..431ef4135d 100644
--- a/src/core/dhcp/nm-dhcp-dhclient.c
+++ b/src/core/dhcp/nm-dhcp-dhclient.c
@@ -437,6 +437,12 @@ dhclient_start(NMDhcpClient *client,
if (addr_family == AF_INET6) {
g_ptr_array_add(argv, (gpointer) "-6");
+
+ if (prefixes > 0 && nm_streq0(mode_opt, "-S")) {
+ /* -S is incompatible with -P, only use the latter */
+ mode_opt = NULL;
+ }
+
if (mode_opt)
g_ptr_array_add(argv, (gpointer) mode_opt);
while (prefixes--)
diff --git a/src/core/dhcp/nm-dhcp-systemd.c b/src/core/dhcp/nm-dhcp-systemd.c
index ea505110ac..ec4a80e644 100644
--- a/src/core/dhcp/nm-dhcp-systemd.c
+++ b/src/core/dhcp/nm-dhcp-systemd.c
@@ -986,8 +986,11 @@ ip6_start(NMDhcpClient * client,
_LOGT("dhcp-client6: set %p", sd_client);
- if (nm_dhcp_client_get_info_only(client))
- sd_dhcp6_client_set_information_request(sd_client, 1);
+ if (nm_dhcp_client_get_info_only(client)) {
+ sd_dhcp6_client_set_address_request(sd_client, 0);
+ if (needed_prefixes == 0)
+ sd_dhcp6_client_set_information_request(sd_client, 1);
+ }
r = sd_dhcp6_client_set_iaid(sd_client, nm_dhcp_client_get_iaid(client));
if (r < 0) {