The first DHCP renew after setting back Ethernet metric to default (-1)
applies a metric of 4294967295 (uint16 -1) instead of the default metric.
The route becomes:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 0.0.0.0 0.0.0.0 U 700 0 0 ppp0
0.0.0.0 192.168.19.193 0.0.0.0 UG -1 0 0 eth0
10.64.64.64 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
10.64.64.64 0.0.0.0 255.255.255.255 UH 700 0 0 ppp0
10.250.0.0 0.0.0.0 255.255.0.0 U 50 0 0 tun0
192.168.19.0 0.0.0.0 255.255.255.0 U 100 0 0 eth0
192.168.19.193 0.0.0.0 255.255.255.255 UH 100 0 0 eth0
217.114.201.194 192.168.19.193 255.255.255.255 UGH 100 0 0 eth0
Route update traces:
Sep 20 09:53:11.869027 tap-0FB1 NetworkManager[762]: <debug> libsystemd: DHCP
CLIENT (0xfd5eaeb9): REQUEST (renewing)
Sep 20 09:53:11.873766 tap-0FB1 NetworkManager[762]: <debug> libsystemd: DHCP
CLIENT (0xfd5eaeb9): ACK
Sep 20 09:53:11.873792 tap-0FB1 NetworkManager[762]: <debug> libsystemd: DHCP
CLIENT (0xfd5eaeb9): lease expires in 1min 58s
Sep 20 09:53:11.873800 tap-0FB1 NetworkManager[762]: <debug> libsystemd: DHCP
CLIENT (0xfd5eaeb9): T2 expires in 1min 35s
Sep 20 09:53:11.873808 tap-0FB1 NetworkManager[762]: <debug> libsystemd: DHCP
CLIENT (0xfd5eaeb9): T1 expires in 50s
Sep 20 09:53:11.873845 tap-0FB1 NetworkManager[762]: <debug> dhcp4 (eth0):
client event 4
Sep 20 09:53:11.873853 tap-0FB1 NetworkManager[762]: <debug> dhcp4 (eth0):
lease available
Sep 20 09:53:11.873881 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
address 192.168.19.100
Sep 20 09:53:11.873890 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
plen 24
Sep 20 09:53:11.873899 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
expires in 120 seconds
Sep 20 09:53:11.873916 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
nameserver '192.168.19.193'
Sep 20 09:53:11.873925 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
hostname 'TAPOFB1'
Sep 20 09:53:11.873932 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
gateway 192.168.19.193
Sep 20 09:53:11.874064 tap-0FB1 NetworkManager[762]: <info> dhcp4 (eth0):
state changed bound -> bound
Sep 20 09:53:11.874082 tap-0FB1 NetworkManager[762]: <debug>
device[0x558dc60b3140] (eth0): new DHCPv4 client state 1
Sep 20 09:53:11.874535 tap-0FB1 NetworkManager[762]: <debug>
device[0x558dc60b3140] (eth0): ip4-config: update (commit=1,
new-config=0x558dc6110be0)
Sep 20 09:53:11.874569 tap-0FB1 NetworkManager[762]: <debug> platform: address:
adding or updating IPv4 address: 192.168.19.100/24 lft 120sec pref 120sec
lifetime 237-0[120,120] dev 2 flags noprefixroute src unkn
Sep 20 09:53:11.874626 tap-0FB1 NetworkManager[762]: <trace> platform-linux:
event-notification: RTM_NEWADDR, flags 0, seq 141: 192.168.19.100/24 lft 120sec
pref 120sec lifetime 237-237[120,120] dev 2 flags noprl
Sep 20 09:53:11.874653 tap-0FB1 NetworkManager[762]: <debug> platform: signal:
address 4 changed: 192.168.19.100/24 lft 120sec pref 120sec lifetime
237-237[120,120] dev 2 flags noprefixroute src kernel
Sep 20 09:53:11.874671 tap-0FB1 NetworkManager[762]: <debug>
device[0x558dc60b3140] (eth0): queued IP4 config change
Sep 20 09:53:11.874699 tap-0FB1 NetworkManager[762]: <debug> platform-linux:
do-add-ip4-address[2: 192.168.19.100/24]: success
Sep 20 09:53:11.874723 tap-0FB1 NetworkManager[762]: <debug> platform: route:
append IPv4 route: 0.0.0.0/0 via 192.168.19.193 dev 2 metric 4294967295 mss
0 rt-src dhcp
Sep 20 09:53:11.874778 tap-0FB1 NetworkManager[762]: <trace> platform-linux:
event-notification: RTM_NEWROUTE, flags excl,create, seq 142: 0.0.0.0/0 via
192.168.19.193 dev 2 metric 4294967295 mss 0 rt-src rt-dhcl
Sep 20 09:53:11.874809 tap-0FB1 NetworkManager[762]: <debug> platform: signal:
route 4 added: 0.0.0.0/0 via 192.168.19.193 dev 2 metric 4294967295 mss 0
rt-src rt-dhcp scope global
Sep 20 09:53:11.874846 tap-0FB1 NetworkManager[762]: <debug> platform-linux:
do-add-ip4-route[0.0.0.0/0 via 192.168.19.193 dev 2 metric 4294967295 mss 0
rt-src rt-dhcp scope global]: success
Sep 20 09:53:11.874867 tap-0FB1 NetworkManager[762]: <debug> platform:
ip4-route: delete 0.0.0.0/0 via 192.168.19.193 dev 2 metric 100 mss 0 rt-src
rt-dhcp scope global
Sep 20 09:53:11.874904 tap-0FB1 NetworkManager[762]: <trace> platform-linux:
event-notification: RTM_DELROUTE, flags 0, seq 143: 0.0.0.0/0 via
192.168.19.193 dev 2 metric 100 mss 0 rt-src rt-dhcp scope global
Sep 20 09:53:11.874930 tap-0FB1 NetworkManager[762]: <debug> platform: signal:
route 4 removed: 0.0.0.0/0 via 192.168.19.193 dev 2 metric 100 mss 0 rt-src
rt-dhcp scope global
Sep 20 09:53:11.874961 tap-0FB1 NetworkManager[762]: <debug> platform-linux:
do-delete-ip4-route[0.0.0.0/0 via 192.168.19.193 dev 2 metric 100 mss 0 rt-src
rt-dhcp scope global]: success
Sep 20 09:53:11.874983 tap-0FB1 NetworkManager[762]: <trace> platform:
ip4-dev-route: register 192.168.19.0/24 via 0.0.0.0 dev 2 metric 0 mss 0 rt-src
rt-kernel scope link pref-src 192.168.19.100 (update)
Fixes: ca0f147bf45e291914b4ec3c6afbc812dd8010b1
---
src/devices/nm-device.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/src/devices/nm-device.c b/src/devices/nm-device.c
index 33dd5e5..fa010ae 100644
--- a/src/devices/nm-device.c
+++ b/src/devices/nm-device.c
@@ -10362,8 +10362,10 @@ nm_device_reactivate_ip4_config (NMDevice *self,
nm_ip4_config_update_routes_metric
((NMIP4Config *) priv->wwan_ip_config_4.orig,
nm_device_get_route_metric (self, AF_INET));
}
- if (priv->dhcp4.client)
- nm_dhcp_client_set_route_metric
(priv->dhcp4.client, metric_new);
+ if (priv->dhcp4.client) {
+ nm_dhcp_client_set_route_metric
(priv->dhcp4.client,
+
nm_device_get_route_metric (self, AF_INET));
+ }
}
}
@@ -10433,8 +10435,10 @@ nm_device_reactivate_ip6_config (NMDevice *self,
nm_ip6_config_update_routes_metric
((NMIP6Config *) priv->wwan_ip_config_6.orig,
nm_device_get_route_metric (self, AF_INET6));
}
- if (priv->dhcp6.client)
- nm_dhcp_client_set_route_metric
(priv->dhcp6.client, metric_new);
+ if (priv->dhcp6.client) {
+ nm_dhcp_client_set_route_metric
(priv->dhcp6.client,
+
nm_device_get_route_metric (self, AF_INET6));
+ }
}
}
--
2.7.4
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