From: lovnish.sharma@bt.com
Date: Mon Dec 22 2008 - 13:39:11 ARST
Jim,
Thanks for your reply.
Interfaces status at both the devices are in UP/UP.
Also I found very unusual problem that when I perform clear arp then Router1 doesn't recieve the arp reply from switch1. However Switch 1 recieves ARP request from Router 1 & sends reply ARP to router 1. But Router 1 never receives ARP reply from SW1. PLease find below the output. Its very simple scenario however its not working.
**********ARP on Router 1************
Rack1R1#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 183.1.17.1 - cc00.0540.0000 ARPA FastEthernet0/0
Rack1R1#
Rack1R1#clear arp
Rack1R1#
*Mar 1 04:19:42.930: IP ARP: sent rep src 183.1.17.1 cc00.0540.0000,
dst 183.1.17.1 ffff.ffff.ffff FastEthernet0/0
****ARP on Switch 1*******
Rack1SW1#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 183.1.17.7 - cc06.0540.f101 ARPA FastEthernet1/1
Internet 183.1.17.1 1 cc00.0540.0000 ARPA FastEthernet1/1
Internet 183.1.107.7 - cc06.0540.f108 ARPA FastEthernet1/8
Rack1SW1#
Rack1SW1#debug arp
ARP packet debugging is on
Rack1SW1#
*Mar 1 04:15:13.886: IP ARP: rcvd req src 183.1.17.1 cc00.0540.0000, dst 183.1.
17.7 FastEthernet1/1
*Mar 1 04:15:13.890: IP ARP: sent rep src 183.1.17.7 cc06.0540.f101,
dst 183.1.17.1 cc00.0540.0000 FastEthernet1/1
*Mar 1 04:15:13.902: IP ARP: rcvd rep src 183.1.17.1 cc00.0540.0000, dst 183.1.
17.1 FastEthernet1/1
Rack1SW1#sh arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 183.1.17.7 - cc06.0540.f101 ARPA FastEthernet1/1
Internet 183.1.17.1 1 cc00.0540.0000 ARPA FastEthernet1/1
Internet 183.1.107.7 - cc06.0540.f108 ARPA FastEthernet1/8
Rack1SW1#
________________________________
From: James MacDonald [mailto:j4m3sm63@yahoo.ca]
Sent: Mon 22/12/2008 15:16
To: Sharma,L,Lovnish,JPGA4X C; ccielab@groupstudy.com
Subject: Re: IEWB Dynamips vol2 v4.1 lab 1 Task 1.1-No Switchport config query
I'd check the dynamips config and ensure those ports are mapped to each other ... and also that the ports are admin up on the router and switch port as well ... i know when i'm into hours of study i make some pretty odd little mistakes like forgetting to check interface status ... or more recently transposing octets in a frame map and spinning my mind into thinking dynamips doesn't work or has a bug or something ... only to go get a cup of coffee and spot my error :)
Usually things like this are errors and not a problem with the program.
------------------------------
Jim MacDonald
j4m3sm63@yahoo.ca
------------------------------
________________________________
From: "lovnish.sharma@bt.com" <lovnish.sharma@bt.com>
To: ccielab@groupstudy.com
Sent: Monday, December 22, 2008 9:48:01 AM
Subject: IEWB Dynamips vol2 v4.1 lab 1 Task 1.1-No Switchport config query
Hi,
IEWB Dynamips version 4.1 Volume 2 ---Task 1.1---Configuring routed interface on switch
This is simple query regarding configuring routed interface on a switch & giving ip address. Switch physically connects to router interface. I am performing this task on dynamips however it is not working.
As per IEWB vol2 Lab 1 please find below the physical connection & configuration:-
Router 1 (F0/0) <----> Switch 1 (F1/1)
Router 1 interface Config
Rack1R1#sh run int f0/0
Building configuration...
Current configuration : 94 bytes
!
interface FastEthernet0/0
ip address 183.1.17.1 255.255.255.0
speed 100
full-duplex
end
Rack1R1#
Switch 1 interface config
Rack1SW1#sh run int f1/1
Building configuration...
Current configuration : 109 bytes
!
interface FastEthernet1/1
description To R1 F0/0
no switchport
ip address 183.1.17.7 255.255.255.0
end
Rack1SW1#
Rack1SW1#pi 183.1.17.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 183.1.17.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Rack1SW1#
I am not able to PING these devices from each other.
Please could you advice if my configuration is correct or I need to configure some other way to achieve this task.
Blogs and organic groups at http://www.ccie.net <http://www.ccie.net/>
This archive was generated by hypermail 2.1.4 : Thu Jan 01 2009 - 12:53:09 ARST