Masquerading MAC addresses

MJ mafsys1234 at
Tue Oct 29 01:05:35 UTC 2019

On 29/10/2019 11:31 am, MJ wrote:
> On 29/10/2019 10:57 am, Nathan Robertson wrote:
>>   Hi,
>> I have an interesting issue that I'm hoping that somebody might be able to
>> point me in the right direction on. Even just a pointer or two, or where to
>> go ask. I've got a situation where my VPS provider is packet filtering my
>> traffic based on MAC address, and as a result are dropping my jail traffic
>> (as FreeBSD bridges traffic from the jail to the network using the jail's
>> MAC address). I need a way to essentially masquerade the MAC address for
>> outbound traffic on the host interface to get past the VPS vendors firewall.
>> Basically, I need vnet jails with IP addresses to use the host adapters MAC
>> address for outbound connections (think of it as masquerading / NAT of MAC
>> addresses). On Linux, it looks like ebtables can do it (MAC NAT -
>> I can see ipfw
>> supports packet filtering based on MAC address, but I can't find anything
>> on packet mangling.
>> Any idea of where I should look or who I could ask about MAC NAT on FreeBSD?
>> Thanks for any help provided. This one's really starting to do my head in.
>> Nathan.
> Sounds like you need some sort of ARP proxy?

Something went wrong.

Anyway, if that's what you need, look at



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