How can doing NAT from outside (internet) to inside LAN Servers using one public IP??????

[mussab-eltigani]

How can doing NAT from outside (internet) to inside LAN Servers using one public IP??????

Should I using route map ????

[alex_ir01]

what is device are you using ?

[mussab-eltigani]

1941 series and no firewall connected.

[alex_ir01]

Are you something configure ? Please put in command line "show ip nat statistics" and show your configuration.

[Vinod16]

mussab

Contact your network engineer they will do the needful..

also provide him (list H323 port for VC )for opening at firewall end.

[mussab-eltigani]

For your information no firewall used in this topology and thank you for helping.

[lgdelgado]

you can use the nat in tcp/udp port ej:

serv1:80

serv2:21

publicip:80 ---> serv1:80

publicip:21 ---> serv2:21

[gcarson73 · Accepted solution]

Lets say 99.3.81.66 is your public IP and ISP is on INT G0/0

ip nat inside source list 1 interface GigabitEthernet0/0 overload

ip nat inside source static tcp 10.3.81.6 443 993.81.66 443 extendable
ip nat inside source static tcp 10.3.81.61 80 99.3.81.66 80 extendable

access-list 1 permit 10.3.81.0 0.0.0.255

Int G0/0

ip nat outside

int g0/2

ip nat inside

[yazeedak1988]

NAT have three types:

static NAT: when you assign one public IP to one private IP.

Dynamic NAT: when you have a pool of public IPs that is mapped to a pool of private IPs.

overload NAT: when you have single public IP and a pool of private IPs, and it will use private IP user ports or process ID to built NAT table...

Use Nat overload method

[mussab-eltigani]

Thank you very much and for all people who tried to help me to solve this problem.....