NI connect unsuccessfull

[kishore_soma]

Dear Experts,

We are using SAP on Red hat linux and oracle, we have development and production server, both the server have 2 ip addresses,( we have VLAN concept)

where in one ip is for the internal LAN and another is for external vpn connected users, in the host file of the OS we have specified only 1 (internal ip address)

so we are getting the errors every minute in the production server and the application server as follows:

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NiConnect Unsuccessful, Return Code: -0003

> Host: <hostname>

> Service: sapgw01

Communication error, CPIC return code 020, SAP return code 665

> CPI-C function: CMINIT(SAP)

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Even the RFC communication is also not happening

Kindly help in this regard,

Thnx

Kishore

[markus_doehr2]

Can the application server "ping" the database server under the name you gave in "hostname"?

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Markus

[kishore_soma]

Hi markus,

Thnx for the reply,

I m able to ping with the 2 ip address from the application server to the database server

regards,

Kishore

[markus_doehr2]

Can you also use the <b>NAMES</b> to ping since you use virtual hostnames...

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Markus

[kishore_soma]

Hi markus,

I have already done that, its working fine.

Thanx

Kishore

[nelis]

Hi Kishore,

Is it not possible that something else may be trying to use the port 3301 sapgw01 uses ?

Check your /etc/services file and make sure all other references to 3301 are commented out except sapgw01.

Regards,

Nelis

[kishore_soma]

hi nelis,

Thnx for the reply,

please find the below details of the services file

\etc\services

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sapmsACP 3600/tcp # SAP System Message Port

sapdp01 3201/tcp # SAP System Dispatcher Port

sapdp01s 4701/tcp # SAP System Dispatcher Security Port

sapgw00 3300/tcp # SAP System Gateway Central Instance Port

sapgw01 3301/tcp # SAP System Gateway Port

sapgw01s 4801/tcp # SAP System Gateway Security Port

sapdp99 3299/tcp # SAPROUTER

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This is available on all the SAP server.

regards,

Kishore