Egress firewall rules???

[argint]

Hi All,

Im sure I should know better but .....

We use opendns and its proved useful to us. I do see however that traffic from our internal lan is making it out on the the wan in a way that Id like to stop. Specifically, I can see that some old printer names are attempting to resolve outside our lan at open dns.

Say we have a domain of example.com then in open dns we see that printer NPABC345.example.com is looking to be resolved.

Can anyone recommend the best way to keep this traffic inside our lan?

Many thanks in advance for any tips on this

Regards

Argint