I believe it is the "external_arp" option (of npm-tcpip.so) you might want
to try.
You also need to enable "forward" (or "fastforward" on npm-tcpip.so)

-Xiaodan Tang



> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> Francois Joubert
> Sent: Tuesday, March 22, 2005 1:09 AM
> To: [email protected]
> Subject: Re: ipfilter on QNX6.3
> 
> On Tue, 22 Mar 2005 03:26:57 +1100 (EST)  Darren Reed 
> <[EMAIL PROTECTED]> wrote:
> > [ Charset ISO-8859-1 unsupported, converting... ]
> > > I have installed ipfilter on QNX 6.3. I would like to implement a 
> > > firewall, with the first attempt to block everthing.
> > > 
> > > I have no success, it is as if the firewall to totally bypassed. 
> > > Repeated ipfstat indicates no activity whatsoever.
> > 
> > 
> > have you tried mount'ing tcpip with the noarp setting (I
> > think that's
> > the one that's important in 6.2) ?
> > 
> > Darren
> 
> I have tried it but it made no difference.
> In QNX Help there is no "noarp" setting for tcpip.
> 
> The options for tcpip are:
> The tcpip_options are one or more of the following,
> separated by commas 
>       without whitespace: 
> 
> external_arp 
>       Enable use of external ip_en converter module (default is
> builtin). 
> fastforward 
>       Enable fastforwarding path. This is useful for gateways. 
> forward 
>       Enable forwarding between interfaces. 
> ipsec 
>       Enable IPSec support (default is off). 
> prefix=/path 
>       Path to prepend to traditional /dev/socket. This option is
> useful when 
>       running multiple stacks. 
> ngif=num 
>       Number of GIF interfaces to create (default is 0). 
> nipip=num 
>       Number of IPIP (IP tunneling protocol) interfaces to
> create (default is 
>       0). 
> ngre=num 
>       Number of GRE (Generic Routing Encapsulation) interfaces
> to create 
>       (default is 0). 
> nvlan=num 
>       Number of VLAN interfaces to create (default is 0). 
> random 
>       Use /dev/random as source of random data. The default is
> to use the 
>       builtin pseudo-random generator. 
> recv_ctxt=num 
>       Size of the receive context buffer, in bytes (default is
> 2048). 
> reuseport_unicast 
>       If using SO_REUSEPORT socket option, unicast packets are
> received on all 
>       sockets bound to the same port. 
> somaxconn=num 
>       Maximum queue length. The default length is specified by
> SOMAXCONN, 
>       which is defined in <sys/socket.h>. 
> stacksize=num 
>       Size of each thread's stack, in bytes (default is 2912). 
> threads=num 
>       Number of threads (default is 48, minimum is 4). 
> 
> Francois
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