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 From:  Raylund Lai <raylund dot lai at kankanwoo dot com>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] ip alias on WAN not recommended
 Date:  Thu, 13 Apr 2006 00:42:44 -0400
Hi Chris,

Yes, I don't need to do so as my m0n0 was working since last Nov that I 
subscribed to 8 static ip (through PPPoE).

But 2 weeks ago, http/smtp/ssh... initialized from outside get 
intermittent connection.  And only ssh get continuous connection once 
connected.  But any connection going outside to internet is normal and 
at full speed.

Today, I do the alias and let isp to ping to my static ip.  Funny that 
only some could be pingable and other couldn't be ping.  Sometime the 
previously pingable ip turned to be non-pingable and the non-pingable 
could be pingable again.  All in all, totally mess up.

I've changed 2 different m0n0wall hardware and restore several months 
ago config backup.  I changed my modem too.  The problem like ghost on 
my subnet.

Let see what the isp can do now.  I'm running out of clue.


p.s. my subnet /29 is dynamically routed by the isp as they assign me a 
dynamic ip when authenticated by PPPoE.

Chris Buechler wrote:
> On 4/12/06, Raylund Lai <raylund dot lai at kankanwoo dot com> wrote:
>> Hi,
>> Is ip alias on WAN not recommended (on the online doc)?  Could I know
>> the reason?
> Because there is no need to do so, under normal operating
> circumstances.  Proxy ARP covers that.
> But, if your ISP needs an IP to ping, or something of that nature, you
> can enter an IP alias via exec.php.  Just run 'ifconfig fxp0 inet
> a.b.c.d netmask 255.255.x.x alias', replacing fxp0 with your WAN
> interface name, a.b.c.d with the IP address, and 255.255.x.x with the
> real subnet mask.  I would only recommend this on a temporary basis,
> and that will be lost on reboot.
> -Chris
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