Routing Problem on OpenServer 5.0.6
fernando.scheid_at_gmail.com
Date: 03/29/05
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Date: 29 Mar 2005 11:52:48 -0800
Hi all,
I have one big problem with routing.
See my network diagram bellow:
+---------------------------+------------------------------
| |
OSR506A ROUTER-A (Linux Box)
192.168.10.10 192.168.10.254
|
|
|
FRAME-RELAY
|
|
|
ROUTER-B (Linux Box)
192.168.13.254
|
+-----------------------+-----------------------------
|
|
192.168.13.1 (net0)
OSR506B
129.168.100.1 (net1)
|
|
+-------------- FDDI -----------+
|
|
192.168.100.2 (net1)
OSR506C
129.12.130.3 (net0)
>>From host OSR506A i can ping to ROUTER-A, ROUTER-B, OSR506B (net0),
OSR506B (net1), OSR506C (net0) and OSR506C (net1).
Traceroute from OSR506A to OSR506C runs fine too.
osr506a # traceroute 129.12.130.3
traceroute to 129.12.130.3 (129.12.130.3), 30 hops max, 40 byte packets
1 192.168.10.254 (192.168.10.254) 0.481 ms 0.395 ms 0.001 ms
2 192.168.248.5 (192.168.248.5) 37.808 ms 39.336 ms 42.508 ms
(WAN)
3 osr506b (192.168.13.1) 32.190 ms 27.678 ms 39.581 ms
4 osr506c (129.12.130.3) 33.296 ms 25.877 ms 43.831 ms
But from host OSR506C i can not ping or traceroute to OSR506A.
osr506c # traceroute 192.168.10.10
traceroute to 192.168.10.10 (192.168.10.10), 30 hops max, 40 byte
packets
1 osr506b-gw (192.168.100.1) 0.481 ms 0.377 ms 0.339 ms
2 * * *
3 * * *
4 * * *
5 * * *
.. ... ... ...
... ... ... ...
Running a tcpdump on ROUTER-B and starting a ping from OSR506C
to ROUTER-B, no one package is displayed.
My first conclusion is that OSR506B is not forwarding packages.
The paramenters ipforwarding and ipsendredirects are set to 1
at the file /etc/default/inet on both servers.
The inconfig command show the same informations too.
OSR506A route table:
osr506a # netstat -nr
Routing tables
Destination Gateway Flags Refs Use Interface
127.0.0.1 127.0.0.1 UH 3 426105 lo0
129.12.130 192.168.10.254 UGS 0 34 net0
192.168.10 192.168.10.10 UC 1 0 net0
192.168.10.10 127.0.0.1 UGHS 5 572 lo0
192.168.13 192.168.10.254 UGS 3 102 net0
224 192.168.10.10 UCS 0 0 net0
OSR506B route table:
osr506b # netstat -nr
Routing tables
Destination Gateway Flags Refs Use Interface
127.0.0.1 127.0.0.1 UH 3 36341 lo0
129.12.130 192.168.100.2 UGS 1 32475 net1
192.168.10 192.168.13.254 UGS 8 236 net0
192.168.13 192.168.13.1 UC 1 0 net0
192.168.13.1 127.0.0.1 UGHS 4 49 lo0
192.168.100 192.168.100.1 UC 1 0 net1
192.168.100.1 127.0.0.1 UGHS 0 45 lo0
224 192.168.13.1 UCS 0 0 net0
OSR506C route table:
osr506c # netstat -nr
Routing tables
Destination Gateway Flags Refs Use Interface
127.0.0.1 127.0.0.1 UH 3 488 lo0
129.12.130 129.12.130.3 UC 1 0 net0
129.12.130.3 127.0.0.1 UGHS 4 26 lo0
192.168.10 192.168.100.1 UGS 0 18 net1
192.168.13 192.168.100.1 UGS 3 1 net1
192.168.100 192.168.100.2 UC 1 0 net1
192.168.100.2 127.0.0.1 UGHS 0 0 lo0
224 129.12.130.3 UCS 0 0 net0
All servers have SCO OpenServer 5.0.6 with rs506a and all recomended
patches applied.
Any help will be apreciatted.
Excuse-me but my english is under construction :(
TIA,
Fernando
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