ORA-12637 TNS packet recieve failed error

Question

Hi All
I am getting connected to SQL*Plus to oracle 10g but I could not connect to Developer 2000(d2k) which gives the error ORA-12637 TNS packet recieve failed .
I have done correct entries in tnsnames.ora file. Still I am facing the error.
Can you tell me the probable reasons/
Thanks in advance

Answer 1

#This is a SQL*Net Configuration file generated by SQL*Net Easy Configuration.
#Attention: Do not modify this file yourself.
#If you do, your SQL*Net Easy Configuration may not function properly.
Example1.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = Production1)
(Port = 1521)
(CONNECT_DATA = (SID = SID1)
Example2.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = spx.world)
(PROTOCOL = SPX)
(Service = Server_lsnr)
(CONNECT_DATA = (SID = ORCL)
Example3.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = nmp.world)
(PROTOCOL = NMP)
(Server = FinanceServer1)
(Pipe = ORAPIPE)
(CONNECT_DATA = (SID = ORCL)
Tcp-loopback.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 127.0.0.1)
(Port = 1521)
(CONNECT_DATA = (SID = ORCL)
Beq-Local.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = beq.world)
(PROTOCOL = BEQ)
(PROGRAM = oracle73)
(ARGV0 = oracle73ORCL)
(ARGS = '(DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))')
(CONNECT_DATA = (SID = ORCL)
FINNEW.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.100.36)
(Port = 1521)
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.100.36)
(Port = 1526)
(CONNECT_DATA = (SID = FINCON)
ABNFAORCL.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.100.36)
(Port = 1521)
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.100.36)
(Port = 1526)
(CONNECT_DATA = (SID = FINCON)
IFACS.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.101.145)
(Port = 1521)
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.101.145)
(Port = 1526)
(CONNECT_DATA = (SID = IFACSUAT)
10G.world =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.201.27)
(Port = 1521)
(ADDRESS =
(COMMUNITY = tcp.world)
(PROTOCOL = TCP)
(Host = 10.94.201.27)
(Port = 1521)
(CONNECT_DATA = (SID = FINCON)
)