route add

UNIX AIX
1

Hello ,

We have 3 rs/6000 server's running aix on our local network, so each time I try to ping one of these servers we get a "network is down" error , I've been instructed to use to route add command which is ...

#route add server.ip router.ip

after this the ping command works fine , i've checked /etc/hosts file for the ip's ... it seems ok . please advice .

Thanks

2

If it works fine, what is your problem then?
What would you like us to help you with?

Regs David

3

David it works fine only after the route add command is issued , it is'nt suppose to work like this rite ? I mean each time I have to telnet / ftp / ping the other host ... I need to issue the route add command. I dont mind doing this but I want to find out why this is happenening.

Thanks

4

Hi,

This normaly only changes after a reboot. Not on any other ocasion. Does your server reboot every day? (uptime)

If so, it should be added in your boot-up files.

Performing a netstat -rn, what does it say ??
Hope to get some info.

Regs David

5

# netstat -rn
Routing tables
Destination Gateway Flags Refcnt Use Interface
Netmasks:
(root node)
(0)0 ff00 0
(0)0 ffff ff00 0
(root node)

Route Tree for Protocol Family 2:
(root node)
default 199.5.2.1 UG 0 0 en0
127 127.0.0.1 U 1 1 lo0
192.x.x 192.x.x.abc U 1 0 et0 (old ip of the server)
199.x.x 199.x.x.def U 7 2149 en0 (current ip)
(root node)

Route Tree for Protocol Family 6:
(root node)
(root node)
#
David yes , the server reboots everyday . Thanks.

6

David yes , the server reboots everyday . Thanks.

OK, now we are talking. This shows you have not taken your new route in your start-up files. You can do this using smit or manualy editing your start-up files.
Using smit you can do it :

System Management --> Communications App and Serv. --> TCP/IP --> Further Config --> Add a Static Route

Good luck.

Regs David

7

David it doesnt seem to work ... I added the route and waited for the server to reboot .

I'll post what I added.

                            Add Static Route

Type or select values in entry fields.
Press Enter AFTER making all desired changes.

                                                    [Entry Fields]

Destination TYPE net (i changed this to host )

  • DESTINATION Address [] (the host ip)
    (dotted decimal or symbolic name)
  • GATEWAY Address [] (the host gateway ip)
    (dotted decimal or symbolic name)
  • METRIC (number of hops to destination gateway) [1] (default ? )
    Network MASK (dotted decimal) [] (left this blank)

Im sure this is incorrect. Waiting for your feedback.

Thanks
Mike