Question : I can ping betwen subnets using IP address, but I cannot ping using computer names

We have two domains  (A and B) conected with point to point lease line on two diferent subnets  E.G 192.168.110.0 and 192.168.100.00.  We can ping using an IP address machines on either domain, however  we can not ping  using computer names.
Anothe issue is that  if we browse  the network under Microsoft Windows Networks form domain A only shows the local domain and its machines; does not show the other domain (B) neither its components. We get the same results if we bose the network from domain B.

thank you in avance fro your help

Answer : I can ping betwen subnets using IP address, but I cannot ping using computer names

if we are talking about dns, please go to the dns console of site A and create secondary zone for domain B and vise verse.
after that you will be able to ping by names