Does DNSWatch support eDNS & ECS

Hi guys,

i've implemented DNSWatch on my customers network, works perfectly except having problems with registration of one of our sip trunks.
I've configured DNSWatch to be enforced on all interfaces.

Checked the requierements for the sip trunk and they need to support eDNS & ECS on DNS Servers used in the environment.

Does DNSWatch Servers support these features?


  • Options
    james.carsonjames.carson Moderator, WatchGuard Representative

    Hi @Kenjinator

    DNSWatch does not support recursive queries, so ECS isn't supported.

    DNSWatch appears to support eDNS, but there are a few pitfalls (for example, if a DNSserver indicates it provides eDNS (is supposed to reply with an OPT record) and does not reply with that type of record. DNSWatch will treat that is invalid and fail to resolve it.

    -James Carson
    WatchGuard Customer Support

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