Cisco ASA – I Cannot Ping External Addresses? (Troubleshooting ICMP)
KB ID 0000914 Problem Considering we use ICMP to test connectivity, the fact that it is not a stateful protocol can be a major pain! Last week one of my colleagues rang me up and said, “Can you jump on this firewall, I’ve got no comms, and I cant ping external IP addresses. I can ping the internet from the firewall and I can ping internal IP addresses form the firewall”. Solution 1. Before we start, lets get the basics...
Cisco ASA ASDM – Packet Tracer Wont Work
KB ID 0001051 Problem I don’t usually use the graphical packet tracer tool, but I did this week, and this happened; Following error(s) occurred- packet-tracer input inside {protocol} inline-tag -l {source} {source port} {target} {target port} xml %Invalid input detected at ‘^’ marker Solution Well from CLI it worked fine, so I’m guessing it’s a fault in the ASDM. An Internet/forum search threw up a load...