Tag: NAT

Configuration Example, Firewalling

McAfee Firewall – NAT mapping

René Jorissen on December 28, 2011 • 0 Comments • Tags: #arp #enterprise #firewall #mcafee #nat #proxy #redirect

While testing a McAfee Enterprise Firewall running software 8.2.0, I had some problems with the creation of a NAT mapping. The firewall is configured as standalone firewall. All (NAT / access rule) configuration on the firewall is done using Access Control Rules. McAfee uses two types of NAT mapping: NAT: mostly used to translate a … Read More

Configuration Example, Routing

Policy NAT on Cisco router

René Jorissen on January 14, 2009 • 9 Comments • Tags: #address #based #cisco #dynamic #nat #network #policy #policybased #router #static #translation

A colleague of mine had to implement an IPSec VPN tunnel from a customer to a supplier. The customer has a Cisco router for connecting to the Internet, so nothing special. The router is already setup and in production. Configuring an extra IPSec VPN tunnel isn’t very hard, the most important part is the negotiation … Read More

Routing, Switching

Cisco ASA & ESX: strange ARP behavior

René Jorissen on January 12, 2009 • 10 Comments • Tags: #arp #behavior #esx #icmp #interface #nat #noproxyarp #path #proxy #reverse #reversepath #spoofing #strange #sysopt #verify #vmware

Last week I had a very strange problem with a Cisco ASA firewall. The firewall is configured with multiple interfaces, including a DMZ interface. There are multiple servers in the DMZ. These servers are physical and virtual servers. The virtual servers are VMware servers in a blade environment. I configured the feature ip verify reverse-path … Read More