On 11/12/18 2:21 PM, Phil Sutter wrote: > diff --git a/man/man8/ip-route.8.in b/man/man8/ip-route.8.in > index a33ce1f0f4006..383178c11331e 100644 > --- a/man/man8/ip-route.8.in > +++ b/man/man8/ip-route.8.in > @@ -589,6 +589,13 @@ argument lists: > route reflecting its relative bandwidth or quality. > .in -8 > > +The internal buffer used in iproute2 limits the maximum number of nexthops to > +be specified in one go. If only a gateway address is given, the current > buffer > +size allows for 144 IPv6 nexthops and 253 IPv4 ones. If more are required, > they > +may be added to the existing route using > +.B "ip route append" > +command. > +
That is not true for IPv4. 'ip ro append' adds a new route after the existing route - an entry that can not be hit unless all of the nexthops in the first route are down. 'ip ro prepend' adds a new entry before the existing one meaning it takes precedence over the existing entries. For IPv6, 'append' and 'prepend' both add new nexthops to the existing entry.
