DNS Resolution broken

[lucaderi]

[MarcoPamio]

It happens also with our installation.
Our university netwok is a /16 class-B network and sometimes, the resolution of the hosts is with DNS names is wrong.
Some wrong examples:

• ocsp.digicert.com
• emupdate.avcdn.net
• ocsp.comodoca.com
• ocsp.digicert.com
• r11.o.lencr.org
• msedge.b.tlu.dl.delivery.mp.microsoft.com
• pbs.twimg.com
  

(they seem to be related to akamai or "certificate traffic")

We are using a SINGLE 10Gbps port to MIRROR (monitor) traffic inside a cisco4500 on a Port-Channel interface (2x10Gbps). I know that it can fail if the sum of the IN/OUT traffic exceedes 10 Gbps, but for now we have less then 2 Gbps max traffic.
I will probably buy another 10Gbps module in the future, to have tx and rx at (maximun) speed.
cisco IOS monitor:

monitor session 1 source interface Po2
monitor session 1 destination interface Te2/2

Let us know if the bug is fixed, thank you.
Marco

[MatteoBiscosi]

Hi @MarcoPamio we pushed quite a few fixes for this issue, could you please update to the latest dev version and let me know?