From: Edward Norton (doubleccie@yahoo.com)
Date: Fri Mar 09 2007 - 11:43:41 ART
I have checked all what you mentioned ...and the other post too
1-the router is connected to the correct vlan , according to show vlan and show interface status on the switch
2- the vlan is created properly , there is another router on the same vlan able to ping the switch (.8) successfully
when i did show arp ..i can see the entry showing incomplete
R2#show arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 20.1.23.2 - 0010.7b04.8712 ARPA FastEthernet1/1
Internet 20.1.23.8 0 Incomplete ARPA
here is some switch shows
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/10, Fa0/11, Fa0/12, Fa0/15
Fa0/21, Gi0/1, Gi0/2
6 Vlan_r6 active
7 vlan_r2r3 active Fa0/3, Fa0/8
show run on the switch
!
interface FastEthernet0/2
description To R2
switchport access vlan 3
switchport mode access
!
!
interface Vlan7
ip address 20.1.23.8 255.255.255.0
!
can this be a hardware problem on my router ??
Muizebelt Danny <Danny.Muizebelt@osiatis.at> wrote:
You have a L3-->L2 mapping problem. In other words, your L3 to L2 address mapping table is not correctly filled out, it's your ARP table.
So now you have to figure out why the 20.1.23.8 address does not get resolved correctly. Line protocol on the router is up else he wouldn't try to send it out to the switch so now we have the following possible problems:
- the 3620 is not connected to the correct vlan.
- check if the port is in access mode
- check if the vlan in up/up
- And finally (this is my guess) the vlan you use is not defined in the vlan database
Let me know what it was.
-Danny
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Edward Norton
Sent: Freitag, 09. Mdrz 2007 14:19
To: ccielab@groupstudy.com
Subject: simple problem
guys
.a router (3620) connected to switch and im trying to ping from the router to the switch vlan interface , for some unknown reason .. ping is not successful ...configuration on the router is very simple as
!
interface FastEthernet0/1
ip address 20.1.23.2 255.255.255.0
duplex auto
speed auto
!
on the switch
!
interface Vlan7
ip address 20.1.23.8 255.255.255.0
!
interfaces are UP ...vlan is configured properly .
when i did debug to see why it is not pinging ..i got an encasultion failure ..routed via RIB ...wat is that ???
*Mar 1 00:17:35.207: IP: s=20.1.23.2 (local), d=20.1.23.8 (FastEthernet0/1), le
n 100, encapsulation failed
*Mar 1 00:17:35.207: ICMP type=8, code=0.
*Mar 1 00:17:37.207: IP: tableid=0, s=20.1.23.2 (local), d=20.1.23.8 (FastEther
net0/1), routed via RIB
*Mar 1 00:17:37.207: IP: s=20.1.23.2 (local), d=20.1.23.8 (FastEthernet0/1), le
n 100, sending
*Mar 1 00:17:37.207: ICMP type=8, code=0
*Mar 1 00:17:37.207: IP: s=20.1.23.2 (local), d=20.1.23.8 (FastEthernet0/1), le
n 100, encapsulation failed
*Mar 1 00:17:37.207: ICMP type=8, code=0.
Success rate is 0 percent (0/5)
any help is appreciated
ReGaRdS
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This archive was generated by hypermail 2.1.4 : Sun Apr 01 2007 - 06:35:50 ART