Network Services Configuration Module
The initial version of the Network Services configuration module implements DNS clients and servers, with syslog, NTP, and SNMP planned for future releases.
DNS Support
netlab can configure DNS clients or servers on these platforms:
Operating system |
IPv4 DNS |
IPv6 DNS |
Transport |
DNS server |
|---|---|---|---|---|
Arista EOS |
✅ |
✅ |
✅ |
❌ |
Cisco IOS/IOS XE[1] |
✅ |
✅ |
✅ |
❌ |
FRR (containers) |
✅ |
✅ |
❌ |
❌ |
Linux (containers) |
✅ |
✅ |
❌ |
❌ |
dnsmasq |
✅ |
✅ |
❌ |
✅ |
DNS Parameters
You can configure the DNS client with the global/node services.dns dictionary:
services.dns.domain (string): The lab domain (default:
netlab.local)services.dns.server (node name or list of node names): Specifies the DNS server(s) node name. The node name(s) are resolved to IPv4/IPv6 addresses, which are then used to configure the lab devices.
services.dns.ipv4 and services.dns.ipv6 (address or list of addresses): Hard-coded IPv4/IPv6 DNS server addresses.
services.dns.transport_vrf: the VRF used to reach the DNS server.
The DNS server is configured with the services.server.dns parameter, which can be a boolean value or a dictionary with these parameters:
forwarder.ipv4 and forwarder.ipv6 (address or list of addresses): upstream DNS servers used for name resolution of domains other than services.dns.domain.