OSPF Issue

amb1s1

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

mwgood

Are you running any firewall on the PCs?

If so, disable it.

amb1s1

I don't think Boson Netsim has any firewall option

mwgood

Ah - I was thinking real PCs.

Post your actual configs, route tables, and how far you can ping out from each PC.

dtlokee

Can you ping from the pc to the first hop router?

The only thing I see is the no shut is missing on the serial 0 of Router 1. I would check to see that the OSPF neighbors are established and see what networks are being advertised with "show ip protocols".

If all that is good, then I would suspect it's a problem with the simulator, they can be problematic.

Netstudent

can the hosts ping their default gateway?


Also can you ping PC1 from router1 and PC2 from router2?

It may just be a bug in the simulation.

tech-airman

amb1s1 wrote:

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

amb1s1,

How come your E0 interfaces on Router_1 and Router_2 do not have subnet masks?

amb1s1

tech-airman wrote:

amb1s1 wrote:

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

amb1s1,

How come your E0 interfaces on Router_1 and Router_2 do not have subnet masks?

It was a typo, the subnet mask is /24

amb1s1

Netstudent wrote:

can the hosts ping their default gateway?


Also can you ping PC1 from router1 and PC2 from router2?

It may just be a bug in the simulation.

I can ping the default gateway from both PC1 and PC2.

amb1s1

dtlokee wrote:

Can you ping from the pc to the first hop router?

The only thing I see is the no shut is missing on the serial 0 of Router 1. I would check to see that the OSPF neighbors are established and see what networks are being advertised with "show ip protocols".

If all that is good, then I would suspect it's a problem with the simulator, they can be problematic.

all the interfaces are up up. I think this is a Sim problem.

Netstudent

well from what you CAN ping it looks like each router has the neighbor's ethernet interface in the routing table. So if router1 has a route for router2's ethernet network, router1 should be able to ping 192.168.30.1 and you say it can. So knowing that, you should be able to ping the host as well. So this looks like a error in the simulation. If you can ping the hosts from their local routers, like if Router1 can ping PC1, then it is definately a bug.

NeonNoodle

mwgood wrote:

Post your actual configs, route tables...

I second that.

tech-airman

amb1s1 wrote:

tech-airman wrote:

amb1s1 wrote:

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

amb1s1,

How come your E0 interfaces on Router_1 and Router_2 do not have subnet masks?

It was a typo, the subnet mask is /24

amb1s1,

Do you configure additional VLANs on Switch_1 and Switch_2 above and beyond the defaults?

amb1s1

tech-airman wrote:

amb1s1 wrote:

tech-airman wrote:

amb1s1 wrote:

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

amb1s1,

How come your E0 interfaces on Router_1 and Router_2 do not have subnet masks?

It was a typo, the subnet mask is /24

amb1s1,

Do you configure additional VLANs on Switch_1 and Switch_2 above and beyond the defaults?

I did not do any VLAN config, it should have the default config.

amb1s1

NeonNoodle wrote:

mwgood wrote:

Post your actual configs, route tables...

I second that.

Is there a way to copy from Boso Netsim because I'm not able to highlight the config.

tech-airman

amb1s1 wrote:

NeonNoodle wrote:

mwgood wrote:

Post your actual configs, route tables...

I second that.

Is there a way to copy from Boso Netsim because I'm not able to highlight the config.

amb1s1,

If Boson NetSim is the same as Boson ExSim, then the inability to highlight may be Boson electronically enforcing their copyright by requiring you to incur the hassle of manual retyping.

tech-airman

amb1s1 wrote:

tech-airman wrote:

amb1s1 wrote:

tech-airman wrote:

amb1s1 wrote:

Hi I'm going crazy with this problem. I'm using Netsim 6. I have the following topology:

2 Router + 2 switch + 2 PC

PC_1

---

Switch_1

---

Router_1

---

Router_2

---

Switch_2

---

PC_2

Roouter_1

int s0
ip address 192.168.10.1 255.255.255.0
clock rate 64000
Clock rate 64000

int E0
ip address 192.168.20.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0


Router_2

int s0
ip address 192.168.10.2 255.255.255.0
no shut

int E0
ip address 192.168.30.1
no shut

Router ospf 1
network 192.168.0.0 0.0.255.255 area 0

PC_1

ipconfig /ip 192.168.20.2 255.255.255.0
ipconfig /dg 192.168.20.1

PC_1

ipconfig /ip 192.168.30.2 255.255.255.0
ipconfig /dg 192.168.30.1

---

I can ping 192.168.10.2, 192.168.20.1 and 192.168.30.1 from router_1 and
I can ping 192.168.10.1, 192.168.20.1 and 192.168.30.1 from router_2, but I'm not able to ping PC_1 from Router_2 or PC_2 from Router_1. Can someone explain me what I'm doing wrong.

amb1s1,

How come your E0 interfaces on Router_1 and Router_2 do not have subnet masks?

It was a typo, the subnet mask is /24

amb1s1,

Do you configure additional VLANs on Switch_1 and Switch_2 above and beyond the defaults?

I did not do any VLAN config, it should have the default config.

amb1s1,

When you mention "...it should have the default config." does that mean that you haven't verified the default config? What are the defaults for a Cisco Catalyst 2950 switch?

NeonNoodle

Go to "File" and select either "Save Single Device Config" or "Multi Devices Configs". You will then be prompted for a name to save your config as.

NeonNoodle

tech-airman wrote:

amb1s1 wrote:

NeonNoodle wrote:

mwgood wrote:

Post your actual configs, route tables...

I second that.

Is there a way to copy from Boso Netsim because I'm not able to highlight the config.

amb1s1,

If Boson NetSim is the same as Boson ExSim, then the inability to highlight may be Boson electronically enforcing their copyright by requiring you to incur the hassle of manual retyping.

I just downloaded the Boson Demo NetSim and had no trouble saving my configs. Also, I was able to copy what was in Boson's "Hyperterminal" interface by highlighting what I wanted to copy, then right clicking and selecting 'copy'.

Boson Operating Simulation Software
BOSS (tm) C1000 Software (C1000-Enterprise), Version 12.1, RELEASE SOFTWARE
Copyright (c) 1998-2003 by Boson Software, Inc.

BOSS ROM: System Bootstrap, Version 12.2, RELEASE SOFTWARE
Router Uptime Is 0 days, 0 hours, 5 minutes
System restarted by power-on
System image file is ""flash:c1000-enterprise.12.1.boss"", booted via flash
Boson 1000 (BOSS) processor (revision 5.0)
1 Ethernet/IEEE 802.3 interface(s)
1 Serial network interface(s)

32K bytes of simulated non-volatile configuration memory.
8192K bytes of simulated System flash (Read/Write)


Configuration register is 0X2102

rjbarlow

amb1s1, Boson netsim is much bugged, also me I have spent much time before realize that. If You have set up correct default gateway on PC_1 and PC_2, i think the lab is right.

mattipler

I use netsim and it's absolutely ridden with bugs... it's actually a bag of sh*te. It does have it's uses... if only for having somewhere to type in commands. If I'd paid for it I'd be seriously p*ssed. Your better off trying to get some cheap equipment off ebay mate.