diff options
Diffstat (limited to 'sbin/routed/routed.8')
| -rw-r--r-- | sbin/routed/routed.8 | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sbin/routed/routed.8 b/sbin/routed/routed.8 index f483ed947799..afee816fdee9 100644 --- a/sbin/routed/routed.8 +++ b/sbin/routed/routed.8 @@ -211,9 +211,11 @@ It continues listening to RIP while using Router Discovery if multi-homed to ensure all interfaces are used. .Pp The Router Discovery standard requires that advertisements -have a default "lifetime" of 30 minutes. That means should +have a default "lifetime" of 30 minutes. +That means should something happen, a client can be without a good route for -30 minutes. It is a good idea to reduce the default to 45 +30 minutes. +It is a good idea to reduce the default to 45 seconds using .Fl P Cm rdisc_interval=45 on the command line or @@ -240,7 +242,7 @@ facility described below to support "legacy" systems that can handle neither RIPv2 nor Router Discovery. .Pp By default, neither Router Discovery advertisements nor solicitations -are sent over point to point links (e.g. PPP). +are sent over point to point links (e.g.\& PPP). The netmask associated with point-to-point links (such as SLIP or PPP, with the IFF_POINTOPOINT flag) is used by .Nm @@ -286,7 +288,8 @@ This is typically used on a gateway to the Internet, or on a gateway that uses another routing protocol whose routes are not reported to other local routers. Notice that because a metric of 1 is used, this feature is -dangerous. It is more commonly accidentally used to create chaos with a +dangerous. +It is more commonly accidentally used to create chaos with a routing loop than to solve problems. .It Fl h cause host or point-to-point routes to not be advertised, @@ -514,7 +517,7 @@ To set parameters for remote or external interfaces, a line starting with .Cm if=alias(Hname) , .Cm if=remote(Hname) , -etc. should be used. +etc.\& should be used. .Ss Parameters Lines that start with neither "net" nor "host" must consist of one or more of the following parameter settings, separated by commas or @@ -535,7 +538,8 @@ This parameter must appear by itself on a line. The network number must specify a full, 32-bit value, as in 192.0.2.0 instead of 192.0.2. .Pp -Do not use this feature unless necessary. It is dangerous. +Do not use this feature unless necessary. +It is dangerous. .It Cm ripv1_mask Ns = Ns Ar nname Ns / Ns Ar mask1 , Ns Ar mask2 specifies that netmask of the network of which .Ar nname Ns / Ns Ar mask1 |