diff -u --recursive --new-file linux-2.4.0/include/linux/netfilter_ipv4/ipt_pkttype.h linux-2.4.0-pkttype/include/linux/netfilter_ipv4/ipt_pkttype.h
--- linux-2.4.0/include/linux/netfilter_ipv4/ipt_pkttype.h	Thu Jan  1 01:00:00 1970
+++ linux-2.4.0-pkttype/include/linux/netfilter_ipv4/ipt_pkttype.h	Tue Mar 20 20:20:56 2001
@@ -0,0 +1,8 @@
+#ifndef _IPT_PKTTYPE_H
+#define _IPT_PKTTYPE_H
+
+struct ipt_pkttype_info {
+	int	pkttype;
+	int	invert;
+};
+#endif /*_IPT_PKTTYPE_H*/
diff -u --recursive --new-file linux-2.4.0/net/ipv4/netfilter/ipt_pkttype.c linux-2.4.0-pkttype/net/ipv4/netfilter/ipt_pkttype.c
--- linux-2.4.0/net/ipv4/netfilter/ipt_pkttype.c	Thu Jan  1 01:00:00 1970
+++ linux-2.4.0-pkttype/net/ipv4/netfilter/ipt_pkttype.c	Tue Mar 20 20:59:22 2001
@@ -0,0 +1,57 @@
+#include <linux/module.h>
+#include <linux/skbuff.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+
+#include <linux/netfilter_ipv4/ipt_pkttype.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+
+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_pkttype_info *info = matchinfo;
+
+    return (skb->pkt_type == info->pkttype) ^ info->invert;
+}
+
+static int checkentry(const char *tablename,
+		   const struct ipt_ip *ip,
+		   void *matchinfo,
+		   unsigned int matchsize,
+		   unsigned int hook_mask)
+{
+/*
+	if (hook_mask
+	    & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN)
+		| (1 << NF_IP_FORWARD))) {
+		printk("ipt_pkttype: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
+		return 0;
+	}
+*/
+	if (matchsize != IPT_ALIGN(sizeof(struct ipt_pkttype_info)))
+		return 0;
+
+	return 1;
+}
+
+static struct ipt_match pkttype_match
+= { { NULL, NULL }, "pkttype", &match, &checkentry, NULL, THIS_MODULE };
+
+static int __init init(void)
+{
+	return ipt_register_match(&pkttype_match);
+}
+
+static void __exit fini(void)
+{
+	ipt_unregister_match(&pkttype_match);
+}
+
+module_init(init);
+module_exit(fini);

