The error happening here is clear. These are the relevant log lines:

Code:

Mar  7 16:19:30 trber dhcpd: No subnet declaration for eth0 (10.210.148.7).
Mar  7 16:19:30 trber dhcpd: ** Ignoring requests on eth0... 
Mar  7 16:19:30 trber dhcpd: Not configured to listen on any interfaces!
Mar  7 16:19:30 trber dhcpd: exiting.

This message means the local system has the given ip at the given interface. But there is no subnet declaration for that. The subnet declaration in your dhcpd.conf is:

Code:

subnet 172.17.126.192 netmask 255.255.255.224

The both does not match. You probably need to add a correct subnet declaration for the same net as the IP 10.210.148.7 is in. But you should not do that without knowing exactly what you are doing and what ip address range may be allowed and dedicated for that. Otherwise you'll disturb network operation in your network by probably causing ip address conflicts with static assigned ip addresses which are the same as in your subnet declaration.

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Another Guess:

Maybe this is not the dhcp server which is serving the ip address of serverX and there is another dhcp-server active? As far as I see this dhcp-service is doing completely nothing because of the line: Mar 7 16:19:30 trber dhcpd: exiting..

You can check that by reviewing the system log of serverX and look for the ip/mac address of the dhcp-server serving the address.

You can also check with a packet sniffer(tcpdump) what's going on on the network and which ip-address is replying to dhcp-requests.(udp ports 67 & 68).