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Setting up a learning lab with errors

larryb8207
Level 1
Level 1

Hi all,

Hope everyone is doing well. I am currently setting up a home lab environment and have run into a bit of an issue and I am trying to wrap my head around it. Basically the setup is NetworkPlaying.png and I can ping from the wireless laptop to the interface 0/1 on the 1841 but not to 192.168.1.1 or any of the servers on the 192.168.1.0/24 subnet. I am also trying to pass internet traffic to this subnet with no success. So I have beat my head against the wall and that didn't help(just left a nasty oil spot on the wall....) Here is the config for the 1841:

version 12.3

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname Parasite

!

boot-start-marker

boot-end-marker

!

!

no aaa new-model

!

resource policy

!

memory-size iomem 15

mmi polling-interval 60

no mmi auto-configure

no mmi pvc

mmi snmp-timeout 180

ip subnet-zero

ip cef

!

!

no ip dhcp use vrf connected

ip dhcp excluded-address 10.1.10.1 10.1.10.99

!

ip dhcp pool WireLessPool

   network 10.1.10.0 255.255.255.0

   default-router 10.1.10.1 255.255.255.0

   domain-name LarrysLab.local

!

!

no ip ips deny-action ips-interface

no ip domain lookup

ip name-server 8.8.8.8

ip name-server 8.8.4.4

!

no ftp-server write-enable

!

!

!

!

!

no crypto isakmp ccm

!

!

!

interface FastEthernet0/0

ip address 10.1.10.1 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet0/1

ip address dhcp

duplex auto

speed auto

!

ip classless

!

no ip http server

no ip http secure-server

!

!

!

control-plane

!

alias exec s show ip int br

alias exec sr show run

!

line con 0

logging synchronous

line aux 0

line vty 0 4

login

!

end

I am probably screwing this all up, but it's a learning day and I will destroy this many times before the day is out. Thanks for your help.

22 Replies 22

Reza Sharifi
Hall of Fame
Hall of Fame

Hi,

can you put an IP address on interface 0/1?

interface FastEthernet0/1

ip address 192.168.1.1 255.255.255.0

duplex auto

speed auto

And see if you can ping it from the wireless laptop.

HTH

Thanks for the quick reply Reza! If I do that will it also conflict with the 192.168.1.1 address from the first linksys wireless router? I will do that but I feel as if it might be a conflict. Thanks again Reza!

Larry,

My apologies.  I did not see that 1.1 was assigned to linksys.  Make the 1841 interface 1.100 please.

Reza,

It has been set to manual 1.100. Lost my internet connection due to conflict with 1.1

Ok, so what was the IP address when you used DHCP?  I thought, your diagram shows it is 1.100

If you change it back to DHCP, can you do sh ip arp and see what IP the DHCP assigned to 0/1?

When I used dhcp it also assigned .100

Internet  10.1.10.1               -   0012.7f7e.fab0  ARPA   FastEthernet0/0

Internet  192.168.1.104          16   0026.f276.b9d0  ARPA   FastEthernet0/1

Internet  192.168.1.107          16   0050.8dcb.a9ee  ARPA   FastEthernet0/1

Internet  192.168.1.101           0   6cf0.4908.0aa6  ARPA   FastEthernet0/1

Internet  192.168.1.100           -   0012.7f7e.fab1  ARPA   FastEthernet0/1

Internet  10.1.10.101            13   0017.f24b.ba4a  ARPA   FastEthernet0/0

Internet  10.1.10.100            57   0018.39b5.3970  ARPA   FastEthernet0/0

Internet  192.168.1.1            16   0021.29d9.827a  ARPA   FastEthernet0/1

Ok, when you are logged in to the 1841, can you ping the linksys (1.1) or 101 or any of the servers in this subnet?

yes I can. I think it could be an ip route issue.

1841 is a router and by default IP routing is enable, but to be sure can you try enabling it one more time?

It has been enabled.

Parasite#sho ip route

Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP

       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

       E1 - OSPF external type 1, E2 - OSPF external type 2

       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

       ia - IS-IS inter area, * - candidate default, U - per-user static route

       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 1 subnets

C       10.1.10.0 is directly connected, FastEthernet0/0

C    192.168.1.0/24 is directly connected, FastEthernet0/1

Here are the tests from pinging from the source of 0/0

Parasite#ping 192.168.1.1 source 10.1.10.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:

Packet sent with a source address of 10.1.10.1

.....

Success rate is 0 percent (0/5)

Parasite#ping 192.168.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:

!!!!!

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

Thanks Reza.

These are good tests.

Can you post sh ver

Here you go Reza,

Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.3(14)T3, RELEASE SOFTWARE (fc2)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2005 by Cisco Systems, Inc.

Compiled Mon 11-Jul-05 21:04 by ccai

ROM: System Bootstrap, Version 12.3(8r)T8, RELEASE SOFTWARE (fc1)

Parasite uptime is 3 hours, 52 minutes

System returned to ROM by power-on

System image file is "flash:c1841-advsecurityk9-mz.123-14.T3.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 1841 (revision 4.1) with 110592K/20480K bytes of memory.

2 FastEthernet interfaces

1 Virtual Private Network (VPN) Module

DRAM configuration is 64 bits wide with parity disabled.

191K bytes of NVRAM.

31360K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2142 (will be 0x2102 at next reload)

Larry,

Configuration register is 0x2142 (will be 0x2102 at next reload)

The config register needs to be 0x2102

Can you reboot and test again?

Reza