Index: linux-2.4.35.4/Documentation/Configure.help
===================================================================
--- linux-2.4.35.4.orig/Documentation/Configure.help
+++ linux-2.4.35.4/Documentation/Configure.help
@@ -2986,6 +2986,14 @@ CONFIG_IP_NF_MATCH_TOS
   If you want to compile it as a module, say M here and read
   <file:Documentation/modules.txt>.  If unsure, say `N'.
 
+iprange match support
+CONFIG_IP_NF_MATCH_IPRANGE
+  This option makes possible to match IP addresses against
+  IP address ranges.
+
+  If you want to compile it as a module, say M here and read
+  <file:Documentation/modules.txt>.  If unsure, say `N'.
+
 Condition variable match support
 CONFIG_IP_NF_MATCH_CONDITION
   This option allows you to match firewall rules against condition
Index: linux-2.4.35.4/include/linux/netfilter_ipv4/ipt_iprange.h
===================================================================
--- /dev/null
+++ linux-2.4.35.4/include/linux/netfilter_ipv4/ipt_iprange.h
@@ -0,0 +1,23 @@
+#ifndef _IPT_IPRANGE_H
+#define _IPT_IPRANGE_H
+
+#define IPRANGE_SRC		0x01	/* Match source IP address */
+#define IPRANGE_DST		0x02	/* Match destination IP address */
+#define IPRANGE_SRC_INV		0x10	/* Negate the condition */
+#define IPRANGE_DST_INV		0x20	/* Negate the condition */
+
+struct ipt_iprange {
+	/* Inclusive: network order. */
+	u_int32_t min_ip, max_ip;
+};
+
+struct ipt_iprange_info
+{
+	struct ipt_iprange src;
+	struct ipt_iprange dst;
+
+	/* Flags from above */
+	u_int8_t flags;
+};
+
+#endif /* _IPT_IPRANGE_H */
Index: linux-2.4.35.4/net/ipv4/netfilter/Config.in
===================================================================
--- linux-2.4.35.4.orig/net/ipv4/netfilter/Config.in
+++ linux-2.4.35.4/net/ipv4/netfilter/Config.in
@@ -27,6 +27,7 @@ tristate 'IP tables support (required fo
 if [ "$CONFIG_IP_NF_IPTABLES" != "n" ]; then
 # The simple matches.
   dep_tristate '  limit match support' CONFIG_IP_NF_MATCH_LIMIT $CONFIG_IP_NF_IPTABLES
+  dep_tristate '  IP range match support' CONFIG_IP_NF_MATCH_IPRANGE $CONFIG_IP_NF_IPTABLES
   dep_tristate '  quota match support' CONFIG_IP_NF_MATCH_QUOTA $CONFIG_IP_NF_IPTABLES
 
   dep_tristate '  IP set support' CONFIG_IP_NF_SET $CONFIG_IP_NF_IPTABLES
Index: linux-2.4.35.4/net/ipv4/netfilter/ipt_iprange.c
===================================================================
--- /dev/null
+++ linux-2.4.35.4/net/ipv4/netfilter/ipt_iprange.c
@@ -0,0 +1,101 @@
+/*
+ * iptables module to match IP address ranges
+ *   (c) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * Released under the terms of GNU GPLv2.
+ *
+ */
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4/ipt_iprange.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
+MODULE_DESCRIPTION("iptables arbitrary IP range match module");
+
+#if 0
+#define DEBUGP printk
+#else
+#define DEBUGP(format, args...)
+#endif
+
+static int
+match(const struct sk_buff *skb,
+      const struct net_device *in,
+      const struct net_device *out,
+      const void *matchinfo,
+      int offset,
+      const void *hdr,
+      u_int16_t datalen,
+      int *hotdrop)
+{
+	const struct ipt_iprange_info *info = matchinfo;
+	const struct iphdr *iph = skb->nh.iph;
+	
+
+	if (info->flags & IPRANGE_SRC) {
+		if (((ntohl(iph->saddr) < ntohl(info->src.min_ip))
+			  || (ntohl(iph->saddr) > ntohl(info->src.max_ip)))
+			 ^ !!(info->flags & IPRANGE_SRC_INV)) {
+			DEBUGP("src IP %u.%u.%u.%u NOT in range %s"
+			       "%u.%u.%u.%u-%u.%u.%u.%u\n",
+				NIPQUAD(iph->saddr),
+			        info->flags & IPRANGE_SRC_INV ? "(INV) " : "",
+				NIPQUAD(info->src.min_ip),
+				NIPQUAD(info->src.max_ip));
+			return 0;
+		}
+	}
+	if (info->flags & IPRANGE_DST) {
+		if (((ntohl(iph->daddr) < ntohl(info->dst.min_ip))
+			  || (ntohl(iph->daddr) > ntohl(info->dst.max_ip)))
+			 ^ !!(info->flags & IPRANGE_DST_INV)) {
+			DEBUGP("dst IP %u.%u.%u.%u NOT in range %s"
+			       "%u.%u.%u.%u-%u.%u.%u.%u\n",
+				NIPQUAD(iph->daddr),
+			        info->flags & IPRANGE_DST_INV ? "(INV) " : "",
+				NIPQUAD(info->dst.min_ip),
+				NIPQUAD(info->dst.max_ip));
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static int check(const char *tablename,
+		 const struct ipt_ip *ip,
+		 void *matchinfo,
+		 unsigned int matchsize,
+		 unsigned int hook_mask)
+{
+	/* verify size */
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_iprange_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ipt_match iprange_match = 
+{ 
+	.list = { NULL, NULL }, 
+	.name = "iprange", 
+	.match = &match, 
+	.checkentry = &check, 
+	.destroy = NULL, 
+	.me = THIS_MODULE
+};
+
+static int __init init(void)
+{
+	return ipt_register_match(&iprange_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&iprange_match);
+}
+
+module_init(init);
+module_exit(fini);
Index: linux-2.4.35.4/net/ipv4/netfilter/Makefile
===================================================================
--- linux-2.4.35.4.orig/net/ipv4/netfilter/Makefile
+++ linux-2.4.35.4/net/ipv4/netfilter/Makefile
@@ -90,6 +90,7 @@ obj-$(CONFIG_IP_NF_NAT) += iptable_nat.o
 # matches
 obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
 obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
+obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o
 obj-$(CONFIG_IP_NF_MATCH_QUOTA) += ipt_quota.o
 obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
 obj-$(CONFIG_IP_NF_MATCH_SET) += ipt_set.o
