DNS/DHCP Server firewall requirements - BlueCat Address Manager - 9.0.0

Address Manager Administration Guide

prodname
BlueCat Address Manager
version_custom
9.0.0

Ports used by DNS/DHCP Server when it is operating under Address Manager control.

Note: The ports must be opened on the firewall for access to the DNS/DHCP Server services listed. If the service is not required or in use, it can be blocked.
DNS/DHCP Server listener ports:
Port Number Protocol Use
22 TCP SSH/SCP connectivity to servers, iDRAC connectivity and SSH2 (secure shell
53 TCP/UDP DNS, Discovery
67 UDP DHCP server
69 UDP TFTP service for file transfer
88 TCP/UDP Kerberos/Active Directory Authentication
123 UDP Network Time Protocol (NTP)
161 UDP SNMP polling
179** TCP BGP protocol (Anycast)
520** UDP RIP protocol (Anycast)
547 UDP DHCPv6 server
647 TCP/UDP DHCP failover
694 UDP xHA (heartbeat)
847 TCP/UDP DHCP failover
7788 TCP xHA disk partition data replication
7789 TCP xHA disk partition data replication
10042 TCP Secure management and connectivity to DNS/DHCP Servers and Address Manager Management port
30865 TCP xHA configuration replication (csync2)
DNS/DHCP Server ports used as a client:
Port Number Protocol Use
53 TCP/UDP DNS resolution, DDNS and zone transfer.
68 UDP DHCP server
88 TCP/UDP Kerberos/Active Directory Authentication
123 UDP Network Time Protocol (NTP)
162* UDP SNMP traps
179** TCP BGP protocol (Anycast)
514 UDP syslog (system log) redirection from Address Manager
520** UDP RIP protocol (Anycast)
546 UDP DHCPv6 server
647 TCP DHCP failover
694 UDP xHA (heartbeat)
847 TCP/UDP DHCP failover
7788 TCP xHA disk partition data replication
7789 TCP xHA disk partition data replication
10045 TCP/UDP Address Manager and DNS/DHCP Server notification
30865 TCP xHA configuration replication (csync2)
Note: Port notices

* These are the standard ports used for the specified protocol and use however, you can specify different ports.

** OSPF protocol can also be used for Anycast service. When using OSPF (OSPFIGP/Protocol number 89), UDP protocol must also be enabled and 224.0.0.5/6 will be used to communicate.

Additional ports might need to be opened for iDRAC usage. For more information, refer to the Dell iDRAC User Guide.