Add route to solaris10

vettec3 · #1 09-09-2010

Hi need to add 2 routes, one on each server.
I know the route add comand but I have always been given the parameters to put in.

I need a route in each of the 2 following servers to be able to ping and ssh between them. But how do i know which netmask to put in the route add command ?
In server4 i would like to use interface ce0
in server3 i would like to use interface ce1

I would apreciate very much if some one could explain how to do it
beacuse it`s a mystery to me.
Also the actual route add comand would be apreciated since im running out of time.

Below is actual config that does not permit ping between servers.
server4

Code:

netstat -nrv
   IRE Table: IPv4
    Destination             Mask           Gateway          Device Mxfrg Rtt   Ref Flg  Out  In/Fwd
  -------------------- --------------- -------------------- ------ ----- ----- --- --- ----- ------
  10.21.124.176        255.255.255.240 10.21.124.181        ce1     1500*    0   1 U     1988     0
  10.21.125.32         255.255.255.224 10.21.125.47         ce0     1500*    0   1 U   2218473     0
  10.6.4.0             255.255.255.192 10.21.124.177                1500*    0   1 UG      10     0
  10.21.124.0          255.255.255.0   10.21.124.177                1500*    0   1 UG       2     0
  224.0.0.0            240.0.0.0       10.21.125.47         ce0     1500*    0   1 U        0     0
  default              0.0.0.0         10.21.125.33                 1500*    0   1 UG      28     0
  127.0.0.1            255.255.255.255 127.0.0.1            lo0     8232*    0  64 UH  5319204     0

      # ifconfig -a
  lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
          inet 127.0.0.1 netmask ff000000
  ce0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
          inet 10.21.125.47 netmask ffffffe0 broadcast 10.21.125.63
          ether 0:3:ba:9:df:4c
  
  ce1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3
          inet 10.21.124.181 netmask fffffff0 broadcast 10.21.124.191
          ether 0:3:ba:9:df:4c

frank_rizzo · #2 09-09-2010

you need to ask your network person for the correct netmask and gateway.

jld · #3 09-10-2010

You need the correct gateway to connect to the different vlan.
Most times this is a router or a system with router functions.

msrkarthikeyan · #4 09-13-2010

From the routing table of server 3, I can see that it already has a route to the server4 ce0 interface.

10.21.125.32 255.255.255.224 10.6.129.1 1500* 0 1 UG 1 0

10.21.125.32 => 10. 21.125.0010 0000
255.255.255.224 => 255.255.255.1110 0000
-----------------------------------------------------------------
From the last 5 host bits, we should know that the network 10.21.125.32/27 implies that the host IPs are from 10.21.125.32 to 10.21.125.63.

So You only need to add a route server4.

server 4
route add host 10.6.129.33 <appropriate gateway>

from the output you have provided its not clear what the gateway should be. If you can provide a small network diagram(if not full picture, atleast the one that shows cabling between the 2 servers) I might be able to help.

Your ping is failing now because the packets from server3 will reach server4 but server4 will not know how to respond as it does not have a route to server3.

good luck

vettec3 · #5 09-16-2010

Thanks for your input.

The route 10.21.125.32 255.255.255.224 10.6.129.1 in server 3 I put it there but Im not sure its correct I just took the min host as the gateway
and for netmask i guessed that i should use the same as for the ce0 interface of server3.

In server 4 I also have 2 networks for the gateway shouldnt i have to shoose any of the
min host for one of theese interfaces, or is it possible to have the gateway to be some other address.? I did try with

Code:

route add -net 10.21.125.32 -netmask 255.255.255.0 -gateway 10.6.129.1

msrkarthikeyan · #6 09-16-2010

1) If you added this entry

code:
10.21.125.32 255.255.255.224 10.6.129.1 1500* 0 1 UG 1 0

You can use a 255.255.255.255 mask as, It wont hurt and you can get connectivity to the other server.

2) I am not sure what you mean by 'min host'.
3) On server4, you should use a gateway based on how your network is setup. I am not sure how your network looks. So I really cant tell you anything about that.

vettec3 · #7 09-17-2010

Hi. by min host I meant the first host in each net.
I belive that as a rule of thumb the first host in each net is a gateway ?

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