Date: Wed, 21 Jan 2009 19:07:44 -0800 From: Len Gross <sandiegobiker@gmail.com> To: freebsd-net@freebsd.org Subject: Proxy arp on a router? Message-ID: <27cb3ada0901211907o47f7a145o1e32017b73e8f13a@mail.gmail.com>
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I have done extensive experimentation on my network and extensive Googling and and am confused as to whether you can use proxy arp in the following situation. I have a router at 192.168.0.200/16 that also has an interface to 192.168.1.1/24. I want to proxy arp the 192.168.1.1 so that requests that come in on the 192.168.9.200/16 interface are given that interface's MAC address and when data arrives for 192.168.1.1/24 it is sent out the proprer interface. In many of the web pages I've examined, this appears to be a pretty standard proxy arp appication, but these are CIsco or Linux references. It appears I can only get this working on FreeBSD when I: ifconfig 192.169.1.1/24 -arp This pretty much makes the subnet useless. I have tried setting up: arp -s permanent entries with the real MAC address for 192.169.1.1/24, but still no luck. >From the FreeBSD documentation, it isn't clear that you can proxy arp on a router. So, two questions: a) Is there a way to make this work? b) If not, how can I help make the documentation clearer? -- Len
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