
148 IBM Tivoli Remote C ontrol Across Firewalls
Figure 5-2 TFST problem determination flow
Are EPP+GWP
serv. started ?
Start EPP 
+GWP 
Services
Could EPP 
contact GWP ?
Check
epp.log
gwp.log
Could EPP 
contact GWP ?
End
Contact IBM 
Customer 
support
lcfd.log
gatelog
epp.log
gwp.log
epproxy.cfg
gwproxy.cfg
Is  EP
alive ?
Check
lcfd.log
gwp.log
Is Ep alive ?
Check 
Firewall 
rules & DNS
Could EPP 
contact GWP ?
Yes
No
Yes
NoNo
No
No
Yes
Yes
No
Yes
Yes
TFST 
Trouble-
shooting
RC Proxy 
Trouble-
shooting
Are EPP+GWP
serv. started ?
Yes
No
Is downcall
working ?
Is downcall
working ?
No
Yes
NoYes
Could EPP 
contact GW ?
Check
gatelog 
epp.log
Could EPP 
contact GW ?
No
No
Yes
Yes
Check
epmgrlog 
gatelog 
lcfd.log
Are EPP+GWP
serv. started ?
Start EPP 
+GWP 
Services
Could EPP 
contact GWP ?
Check
epp.log
gwp.log
Could EPP 
contact GWP ?
End
Contact IBM 
Customer 
support
lcfd.log
gatelog
epp.log
gwp.log
epproxy.cfg
gwproxy.cfg
Is  EP
alive ?
Check
lcfd.log
gwp.log
Is Ep alive ?
Check 
Firewall 
rules & DNS
Could EPP 
contact GWP ?
Yes
No
Yes
NoNo
No
No
Yes
Yes
No
Yes
Yes
TFST 
Trouble-
shooting
RC Proxy 
Trouble-
shooting
Are EPP+GWP
serv. started ?
Yes
No
Is downcall
working ?
Is downcall
working ?
No
Yes
NoYes
Could EPP 
contact GW ?
Check
gatelog 
epp.log
Could EPP 
contact GW ?
No
No
Yes
Yes
Check
epmgrlog 
gatelog 
lcfd.log