10.20.155.34 connected with outside unit, other units server, server 91.11.110.5 need to visit my company, they said my company server must be converted into 172.16.110.5 can, below is my company mpe configuration - 2700
Int f0
IP address 91.11.120.14 255.255.255.240 this is my company's internal network interface address
IP NAT inside
The exit
Int f1
This is the IP address 172.16.110.1 255.255.255.252 even unit interface address
IP NAT outside
The exit
IP NAT inside source static 91.11.110.5 172.16.110.5

IP route 10.20.155.0 255.255.255.0 172.16.110.2


I buy mpe 1800 simulation with a unit configuration:
Int f0
This is the IP address 10.20.155.33 255.255.255.240 unit server interface address
The exit
Int f1
This is the IP address 172.16.110.2 255.255.255.252 interface meet my company address

The exit

IP route 172.16.110.5 255.255.255.255 172.16.110.1

IP route 91.1.115.0 255.255.255.0 172.16.110.1

The server address: unit outside 10.20.155.34 255.255.255.240 10.20.155.33


Question:
I end without NAT translation 2700 NAT configuration delete (mpe), from the outside unit server can ping 91.11.110.5, Telnet 91.11.110.5 port 14110 normal;
I end mpe 2700 (e.g., the NAT configuration), plus the NAT translation from other units can ping server address 172.16.110.5 after conversion, Telnet 172.16.110.5 port 14110 failure;


Ask: what I do is one-to-one static conversion, why can ping, but access to port 14110 failure?

CodePudding user response:

Brother, are C COINS? O 4 c currency

CodePudding user response:

Draw the topology, you draw the line between the two units? Why use private IP networks outside, Intranet instead to use public IP?

CodePudding user response:

If is access between company to company, with a static route can communication: why do you want to configure NAT

CodePudding user response:

Unable to post directly, only this way, please forgive me, ask a question, the three layers of network structure, a new colleague's computer to join the domain, normal access to the Internet for a period of time (hours), suddenly can't get to the Internet, IP, DNS and gateway works, could you tell me what causes? Never reset or add strategy, not modified routers, firewalls, domain and so on all parameters, other older employees to normal,

CodePudding user response:

Address can explain ping interface is up, the address is correct, is the premise of Telnet port can ping the IP address, port is activated (that is, the background is in the port), I don't think you the port is not in use, can change the port to try