[Solved]Can't not build connection (forwarded ports on my WAN IP from my LAN)
Hi guys , I have a server with 126.96.36.199 and NAT IP is 192.168.1.17 , this server is services as SMTP .
It is working fine , but some thing confused me.
I can telnet [188.8.131.52]  from outside , from 192.168.1.17 will failed but ping still success.
It is strange , why I can't telnet [184.108.40.206]  from my self.
I set NAT > Port Forward : below
I set 220.127.116.11 as virtual IP which type is IP Alias .
I set 18.104.22.168 as NAT outbound with source is 192.168.1.17
The firewall only have one WAN interfaces with 22.214.171.124 . one LAN interfaces with 192.168.1.23
SMTP server default gateway is 192.168.1.23
Interface : Wan
Protocol : TCP
Src addr : any
Src ports : any
Dest addr : 126.96.36.199
Dest ports : 25 (SMTP)
NAT IP : 192.168.1.17
NAT Ports: 25
Filter rule association : PASS
Sounds like you need to enable NAT reflection.
Thanks , how to enable NAT reflection ? :)
Thanks , I got it .
Maybe the split DNS is better way :)
Generally, yeah, it's best to not loop traffic through the firewall where it's not strictly necessary to do so.