0
votes
1answer
53 views

Port Forwarding on Cisco Router

I'm a Cisco newbie, have the 1841, with two ethernet interfaces: interface FastEthernet0/0: Internal Desired destination IP: 186.67.181.140 interface FastEthernet0/1: External World IP ...
0
votes
1answer
62 views

Cisco 887VA Port Forwarding Not Working

I have a Cisco 887VA connected to our BT Business Broadband line. We also have another modem on a seperate connection which also handles our DHCP. The Cisco is plugged into our network switch, as is ...
0
votes
0answers
21 views

Is it possible to hairpin on Cisco 851W IOS 12.4(15)T9 and how?

I need machines on the LAN to be able to access by the external address or hostname. If it can't be done, then just by hostname is OK as well, so I thought of just doing it through DNS on our internal ...
0
votes
0answers
31 views

Cisco IOS log packets dropped due to no NAT entries?

I use access list logging currently, and update the access list to match the NAT table, and then the access-list deny any any log command is used for logging packets that were not allowed. However, I ...
0
votes
0answers
36 views

CISCO IOS Forward (nat) specific IP to other IP and Port

I've a customer that has a CISCO 7604 as a Border Router.. (Within Network uses Mikrotik, Freeradius, Meraki, etc)... I'm trying (newbie with Cisco) to create a Forward Rule (in Mikrotik is a Nat ...
4
votes
1answer
885 views

How do you NAT Hairpin in IOS 8.3+

As I asked here and duplicated here it appears NAT Hairpinning is the answer I'm looking for to allow internal servers to loopback through the ASA to access external IP's (without using DNS ...
0
votes
1answer
390 views

IOS Port Forwarding and NAT involving a VPN

We have a Cisco 1921 router running IOS 15.1 at one of our branches which is connected via a L2L IPsec VPN to a ASA5510 running ASA 8.2 at our headquarters. The network looks something like this: ...
0
votes
3answers
188 views

IOS Nated port forwarding

I have cisco ios router with ios C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(4)M1. And I have setup Nat with port overload (one public IP). And there is a static mapping: ip nat source static ...
3
votes
1answer
576 views

Dual Cisco Router Stateful Firewall

At my company we have a single Cisco 3925sec/k9 router running BGP with 2 ISPs. Now we want to purchase a redundant router of the same model to eliminate a single point of failure. I can set up BGP ...
1
vote
1answer
60 views

Does IOS 12.4 Basic have the “ip nat pool …” available

Could someone with Cisco IOS 12.4 Basic check to see if the command "ip nat pool" is available? We have 12.2 basic and I know it is in the 12.4 advanced version but our budget is very limited so I am ...
0
votes
1answer
701 views

Cisco NAT - Sharing single public IP with multiple services

We have this setup on a SonicWall firewall, but I can't for the life of me figure out how to do it on a new Cisco 5520. Here is what I want to do External_IP1:25 --> InternalMailGW_IP:25 ...
0
votes
2answers
829 views

Configure hairpinning on Cisco 871 IOS 12.4(15)T4?

I'm a newbie to IOS. In the past I've used consumer routers which seem to have the smarts to automatically route requests to internal hosts addressed by their public name back to the internal network. ...
0
votes
1answer
102 views

Restrict NAT in IOS to only one public IP

I've managed to enable port-forwarding on my Cisco 877 but I wasn't able to find a way to specify a single accepted IP from the outside. Any link to a Cisco documentation or commands to type in IOS ...
0
votes
1answer
2k views

IOS NAT with multiple interfaces

I am trying to create a DMZ type environment between two internal networks using Cisco NAT. The below configuration is working to permit the two 'nat outside' interfaces to access the dmz 'nat ...
0
votes
2answers
2k views

Setup Cisco IOS Static NAT

I'm trying to allow access to a printer on a separate LAN in the same building. I have control over only one of the networks... My attempt at not using another router failed see here. I now have a ...
2
votes
2answers
2k views

Route-Map vs ACL for Cisco NAT

Is there pros and cons of using route-maps vs access-lists for network address translation on a cisco router?