natd and arp

Timothy R. Simmons tsimmons77 at
Tue Apr 15 15:21:05 PDT 2003

This is normal for routers to do. It's a load balancing and security feature 
on the router you're connected to downstream. It's not a problem at all, just 
a pain to look at all the messages. I'm not sure of a way to disable them, 
though I know it's not a real problem.

On Tuesday 15 April 2003 08:25 pm, James D Fowler wrote:
> Hi,
> I am trying to set up a system running release 4.6 to act as a gateway for
> a network that doesn't have enough ip's (public).
> I have re-compiled the kernel with ipfirewall and ipdivert.
> It is running in the open mode for ipfw.
> It has two interfaces dc0 connected to the wan and rl0 on the private net.
> I keep receiving /kernel: arp: (and other priv ip's )is on rl0
> but got reply on (mac address of dc0)
> it seems to be functioning as far as the nat and routing are concerned.
> My concern is the arp messages, and have I missed something in the conf.
> I would be grateful for any advise.
> Thanx,
> jimmy
> rc.conf:
> gatway_enable="yes"
> firewall_enable="yes"
> firewall_script="/etc/rc.firewall"
> firewall type="open"
> firewall_logging="yes"
> natd_program="/sbin/natd"
> natd_enable="yes"
> natd_interface="dc0"
> natd_flags="-u -l"
> rc.firewall:
> in the open section I modified the natd rule to:
> ${fwcmd} add 50 divert natd all from any to any via ${natd_interface}
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