SIM5.1 and HP servers behind firewall

[Marco MM]

Hi all,
I have some servers behind the firewall and I cannot import them correctly in HP SIM because it cannot recognize system (product name and os name empty). Ping works so systems are imported and available. Only these systems are not recognized, others in LAN are ok.
Firewall pots UDP161 and 162 are opened in fact if I try to do and snmpwalk from HPSIM host to "firewall" host it replies with many snmp entries.
Has someone an idea of what happens and how to solve the problem?

[David Claypool]

You may want to consult 'Managing HP servers through firewalls with HP SIM 5.x' from http://www.hp.com/go/hpsim --> Information Library

[Marco MM]

already done and followed all informations in fact I can browse and query SNMP (with snmpwalk program) from my SIM host to hosts behind firewall but SIM seems cannot import data.

[Melinda Cooper]

On our SNMP Service Properties the Security tab settings I changed the rights to Read-Write and also included 127.0.0.1.
The server we have in the DMZ zone doesn't belong to our Domain and has a different subnet IP (105), we are using the ILO of the server with an IP address of our Domain subnet (103), if that makes any sense?
I had to co-ordinate with the network folks some information from them: Firewall IP Filter rules have been added that allow SIM server, and the 105 subnet to ping â throughâ the firewall to the actual DMZ IP addresses of the DMZ server (instead of the firewall alias responding to the ping).
It took a lot of effort on the Domain & Network folks to get this to work.

[Marco MM]

Thanks for details but I have different VLAN and all of them works, only VLANs behind a firewall cannot work.
I also tried to open, on firewall, protocols ANY from hosts to SIM and viceversa but nothing change (and this is really strange!).
I'm thinking about something blocked by the firewall without logging...