ip route: add comment, no code changes

diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index d4437b9..ce2cd8b 100644 (file)
--- 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();