about default route

[張朝家]

I have a RP5430 host runnning HPUX 11.11 and have a ip address 192.168.155.234
This host is on DMZ and the default route is 195.168.155.210 where is a lan port on firewall

for security,this default route ip (195.168.155.210) is not allowed to be pinged form any host

The problem is if rp5430 can not ping default route well,It can not ping other segment normally

I found it will disconnect after ping aabout 180 packets,and I must run route delete and route add again, rp5430 will connect anoher segment for a moment and disconnect again

But I replace rp5430 with a Windows Xp pc with same IP addr of rp5430(192.168.155.234),
this pc always ping ok,no disconnect

After I opne the firewall policy to allow 192.168.155.210 to be ping,The rp5430 can ping other segment ok

I want to understand how to resole this porblem on HPUX ,if I will not allow the default route firewall be ping,and I can png another segment ok

[harry d brown jr · Accepted solution]

ndd -h ip_ire_gw_probe

ip_ire_gw_probe:

Enable dead gateway probes. This option should only be disabled on networks containing gateways which do not respond to ICMP echo requests (ping).
[0-1] Default: 1 (probe for dead gateways)

thus, you need to disable it:

ndd -set /dev/ip ip_ire_gw_probe 0


live free or die
harry d brown jr

[張朝家]

THANKS, I will try this command next week

[張朝家]

HI,Harry
Thanks very much
It is ok to run ndd command