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no-payload with dynamic ip
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03-30-2017 11:03 AM - edited 03-08-2019 09:59 AM
Hello.
I have an adsl connection with dynamic ip and nat. I want to access a DNS server in private network (behind nat). I forward ports like
ip nat inside static tcp x.x.x.x 53 interface dialer 0 53
ip nat inside static udp x.x.x.x 53 interface dialer 0 53
but dns queries time out.
It works correctly if I use
ip nat inside static tcp x.x.x.x 53 y.y.y.y 53 extendable no-payload
but y.y.y.y is dynamic so I cannot use it because it often changes. I also cannot use no-payload with "interface dialer 0" instead of y.y.y.y
Is there any solution?
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