We have an ASG and are doing multipath. We want to DNAT outbound DNS packets so that when the default route changes name resolution will continue to work (ISP A's name servers won't answer queries from ISP B's IPs).
However, you can't specify an 'out' interface in the NAT rules. I've read that you can work around this by the DST object being bound to an interface. However this didn't seem to work, 'out' was still 'any'.
Any other ideas?
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