[cdelgadop]

Hi

I have a problem defining static routes at TCPIP level. I have a server running on a given ip network, let's say:

en0 10.0.1.1/24
default gateway 10.0.1.254

now we have defined a new ip interface with another ip:

en1 10.0.60.90/24

and want to connect to a server in 10.0.60.100. We want to create a static route so our packets going to 10.0.60.0/24 goes through en1 cause going through en0 will go to the core router.

We have added the following static route:

route add -net 10.0.60.0 -netmask 255.255.255.0 -interface 10.0.60.90

and tried the ftp, but packets are goign to the ent0 interface.

Could you please help me on this ?

[niyas_gk]

Hi..

Did u tried with smitty instead of command line ?

try smitty tcpip->further configuration->static routes->add a static route

you can see the command string by pressing esc+6 , actually its not a command its a script..

[purplemonkey]

In your 'route add' command it doesn't seem like you have put in a gateway..

Something like this might work:

route add 10.0.60.0/24 <gateway for the 10.0.60.0 network>

I'm not sure if this is possible without a gateway in place, you would need to be quite strict on the netmask's used (255.255.255.0 or similar) if its possible..

This will not add the route permanently, for that you can use SMIT, chdev, or add the route add command into /etc/rc.net etc..

If you have no luck it might be helpful to paste the output from 'netstat -rn' here.

Hope this helps.

[cdelgadop]

Hi

Thanks for your answers. I have created the route entry either using smitty in order to modify the inet0 object as well as from commnad line using the route add command.

I think it's something to do with ICMP path discovery, i 'll try deactivating such PMTU settings

[esanchezvela]

did you modify the adapter's address with smit mktcpip or smit chinet? add the adapter's address with smitty mktcpip and use the same gateway as your default gateway, by default, AIX will use the most direct/specific route to any network address which will be en1 not the default gw.

best regards,
esv.

[cdelgadop]

Hi

I solved the problem by setting the following to false:

tcp_pmtu_discover=0
udp_pmtu_discover=0

Those above control the path MTU discovery.