Re: Should ipaliased IP addresses answer broadcast packets?

From: Rob Fulton (rob@cow-frenzy.co.uk)
Date: Sun Jan 20 2002 - 08:34:29 EST


----- Original Message -----
From: "Pekka Savola" <pekkas@netcore.fi>
To: "Rob Fulton" <rob@cow-frenzy.co.uk>
Cc: <linux-net@vger.kernel.org>
Sent: Sunday, January 20, 2002 1:30 PM
Subject: Re: Should ipaliased IP addresses answer broadcast packets?

> On Sun, 20 Jan 2002, Rob Fulton wrote:
> > The game client has however been unable to connect to the server, using
> > tcpdump I can see the request from the server going to the broadcast
address
> > as shown below.
> >
> > 11:53:01.315928 kryten.1480 > 255.255.255.255.27015: udp 16
> >
> > The server however, never replies. When pinging the broadcast address,
the
> > ip address of the interface replies as shown below but none of the
aliased
> > addresses reply to the broadcast ping. Is this normal behaviour? Should
> > aliased addresss reply to pings?
> >
> > 64 bytes from 192.168.0.101: icmp_seq=2 ttl=255 time=0.0 ms
>
> When pinging 255.255.255.255 the main IP address should answer. This is
> the same as when pinging 192.168.0.255. Check your firewalling rulesets,
> perhaps?

Yep, the main IP address does answer but the other IP aliased ip's do not,
is this to be expected? There is no firewall between the client and the
server in this case.

Cheers

Rob

-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html



This archive was generated by hypermail 2b29 : Wed Jan 23 2002 - 21:01:13 EST