[PATCH] don't automatically drop packets from 0.0.0.0/8

From: Amnon Aaronsohn
Date: Wed May 31 2006 - 13:06:43 EST


For some reason linux drops all incoming packets which have a source
address in the 0.0.0.0/8 range, although these are valid addresses. The
attached patch fixes this. (It still drops packets coming from 0.0.0.0
since that's a special address.)

Signed-off-by: Amnon Aaronsohn <bla@xxxxxxxxxxxxx>
---

--- linux-2.6.16.18/net/ipv4/route.c.old 2006-05-30 08:57:42.000000000 +0300
+++ linux-2.6.16.18/net/ipv4/route.c 2006-05-30 08:58:22.000000000 +0300
@@ -1935,7 +1935,7 @@ static int ip_route_input_slow(struct sk
/* Accept zero addresses only to limited broadcast;
* I even do not know to fix it or not. Waiting for complains :-)
*/
- if (ZERONET(saddr))
+ if (saddr == 0)
goto martian_source;

if (BADCLASS(daddr) || ZERONET(daddr) || LOOPBACK(daddr))
-
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