Access to published server from NAT on the same router?

[Ivanleonel]

Hi,

I have ISR router and published server (static NAT). Server’s FQDN server.domain.com

Also, this router has a wi-fi network with NAT pool.

If wi-fi clients try to connect to server.domain.com connection doesn’t work because of resolving to server’s public IP.

I don’t want to use split-dns.

I’m thinking about PBR + next hop to ISP’s gateway, but not sure about this solution.

Are there any options?

[Georg Pauwen]

Hello,

not sure what you are asking: what IP address (local or tanslated) do the wi-fi clients need to access by domain name ?

[Ivanleonel]

I have attached PNG file to my first post.

I want to be able access server.domain.com from wi-fi network which IP address is 100.100.100.5

It goes like this

w-fi client-192.168.1.66 > NAT 100.100.100.5 > 100.100.100.10 NAT> 192.168.2.10-server

all this happens on the same router. 

[paul driver · Accepted solution]

Hello

If you wish to access the server via the public ip address then try the following

Example - Nat hairpinning:
int loopback 100
description Nat_pin
ip address 169.254.1.1 255.255.255.255
ip nat inside

ip access-list extended 110
remark global nat access-list
5 deny ip 192.168.1.0 0.0.0.255 192.168.1.0 0.0.0.255

ip access-list nat-pinning
permit ip 192.168.1.0 0.0.0.255 host 192.168.2.10

route-map NAT_PBR
set interface loopback 100

int x/x
description wan interface
ip nat outside
no ip redirects
ip policy-route NAT_PBR

ip nat inside source list nat-pinning interface loopback100

[Ivanleonel]

Thank you very much! That is what I was looking for! :)