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Help with Network Routes

Damchey Lhendup_1
Occasional Contributor

Help with Network Routes

I would really appreciate some help with HP UX's Network Routes.

Basically, what I want to do is, I would want a system with global ip (eg: 202.144.138.122) to ping/access my HP-UX server which is with private IP address (192.168.1.23). I have all the routers/switches in between properly route traffic between global and private ips, but I can't understand what to insert into my network route table in HP-UX system via SAM.

When i ping 192.168.1.23 from 202.144.138.122, there is no response.. But when I plug in a windows system with the ip 192.168.1.23, it can be accessed via the 202.xxx.xxx.xxx ip. So, the problem is with the Unix route.

What values do I have to insert into the network route on my HP - UX machine(192.168.1.23)

The gateway for HP-UX is 192.168.1.23, and the gateway for global ip is (202.144.138.137).

Thank you.
6 REPLIES
Turgay Cavdar
Honored Contributor

Re: Help with Network Routes

Hi,
When you put windows system, what have you done on the windows system about routing? Have you done the same routing settings on the hp-ux box?

For windows you can type "netstat -nr" and can see your routings. You should add the same routes for hp-ux box.
Damchey Lhendup_1
Occasional Contributor

Re: Help with Network Routes

Thank you for replying. I tried what you advised me, but still not working. I can't get my 202.xxx.xxx.xxx IP machine to ping to 192.168.1.23. However, I can ping vice-versa.
There is no firewall issue in between, because, when I plug in a windows laptop with IP(192.168.1.23), I can ping it from 202......

Turgay Cavdar
Honored Contributor

Re: Help with Network Routes

1)Are you sure your networking working on hp-ux?
2-)Are there any other host on the 192.168.1.x subnet that can ping hp-ux successfuly?
3-)Can you send both windows and hp-ux "netstat -nr" outputs?
Damchey Lhendup_1
Occasional Contributor

Re: Help with Network Routes

Yes, I have other windows systems on the 192.168.1.x subnet and all of them can ping the 192.168.1.23 HP UX. This is done by adding the following route details into HP UX SAM.

Destination: 192.168.1.0
Gateway: 192.168.1.23


Also, the system with IP 202.144.138.122 can ping all the other windows systems on the 192.168.1.x subnet.


Following is the output of netstat -nr from HP-UX

Destination Gateway Flags Refs Interface Pmtu
127.0.0.1 127.0.0.1 UH 0 lo0 32808
192.168.1.23 192.168.1.23 UH 0 lan0 32808
192.168.1.0 192.168.1.23 U 2 lan0 1500
127.0.0.0 127.0.0.1 U 0 lo0 32808
default 192.168.1.1 UG 0 lan0 1500

Please help me.Once again, thank you!



Turgay Cavdar
Honored Contributor

Re: Help with Network Routes

>>This is done by adding the following route >>details into HP UX SAM.
>>Destination: 192.168.1.0
>>Gateway: 192.168.1.23
I dont understand, you shouldnt add this route, when you set your IP address to 192.168.1.23/255.255.255.0 this route automatically added to your route config.


Your routing table seems ok to me.

1-)Do you have IPfilter configured?
2-)Can you ping your gateway from hp-ux or can you ping the hp-ux from your gateway(192.168.1.1)?
Damchey Lhendup_1
Occasional Contributor

Re: Help with Network Routes

Finally solved the problem. An unused ethernet card had routes on it. Removed those, and worked finally.

Thanks for your time.