+static void
+printifaceid(opt, printer, arg)
+ option_t *opt;
+ void (*printer) __P((void *, char *, ...));
+ void *arg;
+{
+ ipv6cp_options *wo = &ipv6cp_wantoptions[0];
+
+ if (wo->opt_local)
+ printer(arg, "%s", llv6_ntoa(wo->ourid));
+ printer(arg, ",");
+ if (wo->opt_remote)
+ printer(arg, "%s", llv6_ntoa(wo->hisid));
+}
+