I'm very new to managing Cisco equipment, so bear with me.
I'm configuring a Cisco ASA 5505 router for my office, and I am reasonably competent enough with the console to configure the basics -- our business needs are not extravagant. Our pings are being dropped by the router, however.
How do I configure the router to allow ICMP Echo Requests? Are there other types of ICMP requests that should be allowed? What are the potential downsides of allowing them all?