[NETFILTER]: ipt_DNAT: accept port randomization option

Also accept the --random option for DNAT to allow randomly selecting a
destination port from the given range.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 4 deletions

diff --git a/net/ipv4/netfilter/nf_nat_rule.c b/net/ipv4/netfilter/nf_nat_rule.c
index 2a283397a8b6..2534f718ab92 100644
--- a/net/ipv4/netfilter/nf_nat_rule.c
+++ b/net/ipv4/netfilter/nf_nat_rule.c
@@ -226,10 +226,6 @@ static int ipt_dnat_checkentry(const char *tablename,
                 printk("DNAT: multiple ranges no longer supported\n");
                 return 0;
         }
-        if (mr->range[0].flags & IP_NAT_RANGE_PROTO_RANDOM) {
-                printk("DNAT: port randomization not supported\n");
-                return 0;
-        }
         return 1;
 }