net/iproute2: increase default dad_timeout to 10s

If you have a NIC that takes a long time to come up, the previous
default of 5 seconds is too low, because the card might not be available
yet. Increase the default to 10 seconds.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
X-Gentoo-Bug: 482300

3 files changed, 14 insertions, 10 deletions

diff --git a/doc/net.example.BSD.in b/doc/net.example.BSD.in
index 2509c9f..d3bd15b 100644
--- a/doc/net.example.BSD.in
+++ b/doc/net.example.BSD.in
@@ -86,12 +86,14 @@
 
 # IPv6 addresses usually must complete a duplicate address detection process
 # before they can be bound to by daemons; they are held in a 'tentative' state
-# until this completes.  Setting the 'nodad' flag (see config_eth0 above) is 
+# until this completes. Setting the 'nodad' flag (see config_eth0 above) is 
 # one way to avoid this tentative state, otherwise the service will wait
-# dad_timeout seconds (defaults to 5) for tentative state to clear on all IPv6
-# addresses set on the interface.  As usual, dad_timeout can be adjusted on a
-# per-interface basis.  Set to 0 to disable the wait entirely.
-#dad_timeout_eth0=5
+# dad_timeout seconds (defaults to 10) for tentative state to clear on all IPv6
+# addresses set on the interface. As usual, dad_timeout can be adjusted on a
+# per-interface basis. If your interface takes a long time to establish
+# carrier, you may wish to use a higher value.
+# Set to 0 to disable the wait entirely.
+#dad_timeout_eth0=10
 
 # You may wish to disable the interface being brought down when stopping.
 # This is only of use for WakeOnLan.
diff --git a/doc/net.example.Linux.in b/doc/net.example.Linux.in
index caffed7..e838f28 100644
--- a/doc/net.example.Linux.in
+++ b/doc/net.example.Linux.in
@@ -137,10 +137,12 @@
 # before they can be bound to by daemons; they are held in a 'tentative' state
 # until this completes.  Setting the 'nodad' flag (see config_eth0 above) is
 # one way to avoid this tentative state, otherwise the service will wait
-# dad_timeout seconds (defaults to 5) for tentative state to clear on all IPv6
-# addresses set on the interface.  As usual, dad_timeout can be adjusted on a
-# per-interface basis.  Set to 0 to disable the wait entirely.
-#dad_timeout_eth0=5
+# dad_timeout seconds (defaults to 10) for tentative state to clear on all IPv6
+# addresses set on the interface. As usual, dad_timeout can be adjusted on a
+# per-interface basis. If your interface takes a long time to establish
+# carrier, you may wish to use a higher value.
+# Set to 0 to disable the wait entirely.
+#dad_timeout_eth0=10
 
 # You may wish to disable the interface being brought down when stopping.
 # This is only of use for WakeOnLan.
diff --git a/net/iproute2.sh b/net/iproute2.sh
index 58b7bc4..096e724 100644
--- a/net/iproute2.sh
+++ b/net/iproute2.sh
@@ -332,7 +332,7 @@ iproute2_post_start()
 {
 	local n=
 	eval n=\$dad_timeout_${IFVAR}
-	[ -z "$n" ] && n=${dad_timeout:-5}
+	[ -z "$n" ] && n=${dad_timeout:-10}
 
 	local policyroute_order=
 	eval policyroute_order=\$policy_rules_before_routes_${IFVAR}