Tag: clear
GRE over IPsec with Cisco ASA
In different scenario’s it is required to configure some kind of routing protocol between two offices, but the routers should be configured to look directly connected to each other. Normally I always configure an IPsec VPN between the two offices and configure an additional GRE tunnel over the IPsec VPN tunnel. In that way the … Read More
Configuration Example, Routing, Security, Switching
Secure HSRP configuration
A friend of mine works for a well known auditing and penetration testing company in the Netherlands. Recently we were talking about how he starts looking for flaws in network infrastructures. My friend told me that the first thing he does is simply starting WireShark and start looking at all the packets he receives. By … Read More