Add a note to 'nexthop' description stating the maximum number of nexthops per command and pointing at 'append' command as a workaround.
Signed-off-by: Phil Sutter <p...@nwl.cc> --- Changes since v1: - Reviewed text. - 'route append' trick works with IPv6 only. --- man/man8/ip-route.8.in | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/man/man8/ip-route.8.in b/man/man8/ip-route.8.in index a33ce1f0f4006..11dd4ca7abf68 100644 --- a/man/man8/ip-route.8.in +++ b/man/man8/ip-route.8.in @@ -589,6 +589,15 @@ argument lists: route reflecting its relative bandwidth or quality. .in -8 +The internal buffer used in iproute2 limits the maximum number of nexthops that +may be specified in one go. If only +.I ADDRESS +is given, the current buffer size allows for 144 IPv6 nexthops and 253 IPv4 +ones. For IPv4, this effectively limits the number of nexthops possible per +route. With IPv6, further nexthops may be appended to the same route via +.B "ip route append" +command. + .TP .BI scope " SCOPE_VAL" the scope of the destinations covered by the route prefix. -- 2.19.0
