Cisco firepower 11509/14/2023 ![]() What am I missing here? If i check the configuration, everything looks good: dns domain-lookup INT_LAN Sending 5, 100-byte ICMP Echos to 172.16.123.91, timeout is 2 seconds: ![]() Rtt min/avg/max/mdev = 0.109/0.137/0.149/0.013 msīut when we want to do a dns querry, it does not work over the management: Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms Sending 5, 100-byte ICMP Echos to 172.16.123.50, timeout is 2 seconds: So we can ping our DNS server thur both interfaces. This makes it possible for you to test connectivity through specific interfaces and through the routing table. In the Cisco documentation it says following:įor example, the ping hostname and ping interface interface_name hostname commands uses the data interface DNS servers to resolve the name, whereas the ping system hostname command uses the management interface DNS servers. ![]() We configured our HA FTD 1150 pair with FMC and enabled it to use DNS servers under plattform settings:
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