Update ping address so that dns is not req'd
Update ping address so that dns is not req'd

External ping connectivity tests required dns, and therefore needed udp
asg as well. It had been mysterious why udp was req'd. Pinging ip
addresses removes the need for udp and dns.

[#154368964]

Signed-off-by: Tyler Schultz <6b7a73f4f7cffc2a148becd12890940350ddfa95@pivotal.io>

cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release,cloudfoundry-incubator/cf-networking-release