1 files changed, 3 insertions, 1 deletions

diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index d4437b923..ce2cd8b39 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -579,7 +579,9 @@ static int iproute_list_or_flush(char **argv, int flush)
                                 filter.tb = 0;
                         else if (parm != KW_main)
                                 invarg(*argv, "table");
-                } else if (arg == KW_cache) { // hmm is it valid - "ip r flush cache"?
+                } else if (arg == KW_cache) {
+                        /* The command 'ip route flush cache' is used by OpenSWAN.
+                         * Assuming it's a synonym for 'ip route flush table cache' */
                         filter.tb = -1;
                 } else if (arg == KW_from) {
                         NEXT_ARG();