Pinging public IP addresses

nfoley0011 · ‎02-02-2015

Hi All,

We have purchased an Cisco asa 5512-x with IPS. I am trying to configure a very basic setup to start testing. I have noticed some odd behavior and am wondering if anyone can shed any light on this?

Here is our setup so far:

Outside IP 62.x.x.32

Management 192.168.1.62

Static route setup as follows:

Gateway of last resort is 62.x.x.2 to network 0.0.0.0

C 192.168.1.0 255.255.255.0 is directly connected, management
C 62.x.x.0 255.255.255.128 is directly connected, outside
S* 0.0.0.0 0.0.0.0 [1/0] via 62.x.x.2, outside

Now, I couldn't ping any addresses on the internet, until I pinged the gateway. After a few minutes, I can no longer ping an address on the internet, until I ping the gateway again. I have repeated this ~ 10 times, so I don't think its a coincidence. Can anyone explain whats happening here?

nfoley0011 · ‎02-02-2015

Just to add:

I have just cleared the ARP cache, whilst running a constant ping to an IP address on the internet. When I cleared the cache the ICMP replies came in OK, but then stopped again.