Desporate routing help needed.

Michael Durham · ‎05-29-2013

Yesterday everything work perfectly. I rebooted my router and the Windows Internet Connection Sharing system and now I cannot get out to the Internet from my router on the 192.168.30.0 network. My router's interface gi0/0.30 has an IP of 192.168.30.2 and the Windows ICS system's IP is 192.168.30.1. Also, my workstatis' IP is 192.168.69.150

From my workstation I can ping 192.168.30.2 and 192.168.30.1

From the ICS system I can ping 192.168.30.2 and 192.168.30.1 and 192.168.69.150

From my router I can pint 192.168.30.2 (the gi0/0.30 interface) and 192.168.69.150 BUT NOT 192.168.30.1

Windows firewall is off, if it were ob the 192.168.69.150 workstation could not be able to ping it.

I have rebooted everything twice but still having the problem

Until I can ping 192.168.30.1 from the router, I cannot use the internet connection from the ICS system.

Attached is my full config file for the route.

Her is a show ip route from the router:

S* 0.0.0.0/0 [254/0] via 100.75.8.1

10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks

C 10.110.0.0/24 is directly connected, GigabitEthernet0/1.110

L 10.110.0.1/32 is directly connected, GigabitEthernet0/1.110

C 10.115.0.0/24 is directly connected, GigabitEthernet0/1.115

L 10.115.0.1/32 is directly connected, GigabitEthernet0/1.115

100.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 100.75.8.0/29 is directly connected, GigabitEthernet0/0.31

L 100.75.8.2/32 is directly connected, GigabitEthernet0/0.31

172.16.0.0/30 is subnetted, 1 subnets

S 172.16.2.0 [1/0] via 192.168.69.2

172.30.0.0/16 is variably subnetted, 2 subnets, 2 masks

C 172.30.1.0/30 is directly connected, Tunnel0

L 172.30.1.2/32 is directly connected, Tunnel0

192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks

D 192.168.2.0/24 [90/1413120] via 172.30.1.1, 00:30:06, Tunnel0

D 192.168.2.10/32 [90/1413120] via 172.30.1.1, 00:30:06, Tunnel0

192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.168.3.0/24 is directly connected, GigabitEthernet0/1.3

L 192.168.3.1/32 is directly connected, GigabitEthernet0/1.3

D 192.168.10.0/24 [90/1410560] via 172.30.1.1, 00:30:06, Tunnel0

192.168.30.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.168.30.0/24 is directly connected, GigabitEthernet0/0.30

L 192.168.30.2/32 is directly connected, GigabitEthernet0/0.30

192.168.50.0/24 is variably subnetted, 2 subnets, 2 masks

S 192.168.50.0/24 [1/0] via 192.168.69.2

D 192.168.50.0/29

[90/28416] via 192.168.69.2, 00:30:22, GigabitEthernet0/1.69

192.168.69.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.168.69.0/24 is directly connected, GigabitEthernet0/1.69

L 192.168.69.3/32 is directly connected, GigabitEthernet0/1.69

192.168.100.0/24 is variably subnetted, 2 subnets, 2 masks

S 192.168.100.0/24 [1/0] via 192.168.69.2

D 192.168.100.102/32

[90/156160] via 192.168.69.1, 00:30:20, GigabitEthernet0/1.69

192.168.125.0/24 is variably subnetted, 2 subnets, 2 masks

S 192.168.125.0/24 [1/0] via 192.168.69.2

D 192.168.125.0/29

[90/28416] via 192.168.69.2, 00:30:22,

As you can see, the 192.168.30.0network is directly connected.

Here is a show ip int brief:

CME_Router#sh ip int brie

Interface IP-Address OK? Method Status Protocol

GigabitEthernet0/0 unassigned YES NVRAM up up

GigabitEthernet0/0.30 192.168.30.2 YES NVRAM up up

GigabitEthernet0/0.31 100.75.8.2 YES DHCP up up

GigabitEthernet0/1 unassigned YES NVRAM up up

GigabitEthernet0/1.3 192.168.3.1 YES NVRAM up up

GigabitEthernet0/1.69 192.168.69.3 YES NVRAM up up

GigabitEthernet0/1.110 10.110.0.1 YES NVRAM up up

GigabitEthernet0/1.115 10.115.0.1 YES NVRAM up up

NVI0 192.168.30.2 YES unset up up

Tunnel0 172.30.1.2 YES NVRAM up up

A tracerotue command:

Tracing the route to 192.168.30.1

VRF info: (vrf in name/id, vrf out name/id)

1 * * *

2 * * *

I don't know what else to show you from the router.

From the PC here is the ipconfig

Ethernet adapter 192.168.30.2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : Realtek RTL8139/810x Family

NIC

Physical Address. . . . . . . . . : 00-16-17-74-C5-AE

DHCP Enabled. . . . . . . . . . . : No

Autoconfiguration Enabled . . . . : Yes

IPv4 Address. . . . . . . . . . . : 192.168.30.1(Preferred)

Subnet Mask . . . . . . . . . . . : 255.255.255.0

Default Gateway . . . . . . . . . :

DNS Servers . . . . . . . . . . . : 8.8.8.8

4.2.2.2

NetBIOS over Tcpip. . . . . . . . : Enabled

And a route print:

===========================================================================

Interface List

36 ...aa 2f 07 4f 34 51 ...... Remote NDIS based Internet Sharing Device #2

10 ...00 16 17 74 c5 ae ...... Realtek RTL8139/810x Family Fast Ethernet NIC

1 ........................... Software Loopback Interface 1

27 ...00 00 00 00 00 00 00 e0 isatap.{1AC21D6B-4DC4-4EB1-8B66-A451C67DDB3A}

11 ...02 00 54 55 4e 01 ...... Teredo Tunneling Pseudo-Interface

51 ...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2

38 ...00 00 00 00 00 00 00 e0 6TO4 Adapter

===========================================================================

IPv4 Route Table

===========================================================================

Active Routes:

Network Destination Netmask Gateway Interface Metric

0.0.0.0 0.0.0.0 192.168.42.129 192.168.42.70 10

127.0.0.0 255.0.0.0 On-link 127.0.0.1 306

127.0.0.1 255.255.255.255 On-link 127.0.0.1 306

127.255.255.255 255.255.255.255 On-link 127.0.0.1 306

192.168.30.0 255.255.255.0 192.168.30.2 192.168.30.1 21

192.168.30.1 255.255.255.255 On-link 192.168.30.1 276

192.168.42.0 255.255.255.0 On-link 192.168.42.70 266

192.168.42.70 255.255.255.255 On-link 192.168.42.70 266

192.168.42.255 255.255.255.255 On-link 192.168.42.70 266

192.168.50.0 255.255.255.248 192.168.30.1 192.168.30.1 21

192.168.69.0 255.255.255.0 192.168.30.1 192.168.30.1 21

192.168.69.0 255.255.255.0 192.168.30.2 192.168.30.1 21

192.168.70.0 255.255.255.0 192.168.30.1 192.168.30.1 21

192.168.115.0 255.255.255.248 192.168.30.1 192.168.30.1 21

192.168.125.0 255.255.255.248 192.168.30.1 192.168.30.1 21

192.168.200.0 255.255.255.0 192.168.30.1 192.168.30.1 21

224.0.0.0 240.0.0.0 On-link 127.0.0.1 306

224.0.0.0 240.0.0.0 On-link 192.168.30.1 276

224.0.0.0 240.0.0.0 On-link 192.168.42.70 266

255.255.255.255 255.255.255.255 On-link 127.0.0.1 306

255.255.255.255 255.255.255.255 On-link 192.168.30.1 276

255.255.255.255 255.255.255.255 On-link 192.168.42.70 266

===========================================================================

Persistent Routes:

Network Address Netmask Gateway Address Metric

192.168.69.0 255.255.255.0 192.168.30.1 1

192.168.70.0 255.255.255.0 192.168.30.1 1

192.168.115.0 255.255.255.248 192.168.30.1 1

192.168.125.0 255.255.255.248 192.168.30.1 1

192.168.200.0 255.255.255.0 192.168.30.1 1

192.168.50.0 255.255.255.248 192.168.30.1 1

192.168.30.0 255.255.255.0 192.168.30.2 1

192.168.69.0 255.255.255.0 192.168.30.2 1

===========================================================================

IPv6 Route Table

===========================================================================

Active Routes:

If Metric Network Destination Gateway

1 306 ::1/128 On-link

36 266 fe80::/64 On-link

36 266 fe80::b49b:5229:3330:5149/128

On-link

1 306 ff00::/8 On-link

36 266 ff00::/8 On-link

===========================================================================

I have spent six hours trying everything I can think of to no avail.

Please help, I need to get this working again so my VoIP p hone will work. VLAN 31 works VLAN 30 does not. Right now all I am trying to d ois ping from the home route to the ICS computer both ways. Everything else works like it should. I need this up for a conference call tomorrow at noon EST. As for info and I shall provide it.

Network topology:

From the server switch above I did a ping and traceroute to 192.168.30.1, here are the results.

Server_Switch#ping 192.168.30.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.30.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Server_Switch#traceroute 192.168.30.1

Type escape sequence to abort.

Tracing the route to 192.168.30.1

1 192.168.69.1 4 msec 0 msec 4 msec

2 192.168.30.1 0 msec * 0 msec

When I ping for the home router to the ICS system with the ping 192.168.30.1 source 192.168.69.3 command. still nothing.

antonio.guirado · ‎05-29-2013

Hello,

you have problem with your VLAN 30. Do the following step:

1- Ping from your router to 192.168.30.1. It does not work (I know) but just after it, do in your CME_Router "show arp". Check if you have an entry that tells the MAC address associated to your ICS address 192.168.30.1. If it exists your VLAN 30 it is ok and then check your windows ICS.

2- If you do not have and arp entry, find out CME_Router Giga0/0 and ICS MAC address and check if there are known by your switches. You can do "show mac address-table vlan 30". Remember that when a Frame go into the switch, the switch

learns the source MAC and associate it to the inbound port.

I think your swiches is not well-configured to transport VLAN 30.

Regards.

Michael Durham · ‎05-30-2013

FIXED!!!

I had t o remove the command: ip nat outside from the gi0/0.30 interface. Thank you for your quick responce and help. This site is the best!!!!