diff -ur v2.4.25/linux/net/ipv4/ipvs/ip_vs_conn.c linux/net/ipv4/ipvs/ip_vs_conn.c
--- v2.4.25/linux/net/ipv4/ipvs/ip_vs_conn.c	2003-11-28 22:04:14.000000000 +0200
+++ linux/net/ipv4/ipvs/ip_vs_conn.c	2004-03-20 11:19:35.121157568 +0200
@@ -890,8 +890,6 @@
 	/* update checksum because skb might be defragmented */
 	ip_send_check(old_iph);
 
-	skb->h.raw = skb->nh.raw;
-
 	/*
 	 * Okay, now see if we can stuff it in the buffer as-is.
 	 */
@@ -911,6 +909,7 @@
 		old_iph = skb->nh.iph;
 	}
 
+	skb->h.raw = skb->nh.raw;
 	skb->nh.raw = skb_push(skb, sizeof(struct iphdr));
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));