From: Ryder, Keith (Keith.Ryder@globalcrossing.com)
Date: Wed Apr 04 2007 - 08:48:44 ART
Maureen.
It does not have a VLAN as such on the LAN side.
However the router does have a switch module that requires the use of a
VLN on the WAN side.
Not that this site has HSRP and layer 3 switches and we are peering with
them.
I also did a ping to the Ethernet address.
Again very strange the router sends out 2 responses approx 3 seconds
apart!!!
Apr 4 12:44:34.136 BST: ICMP: dst (10.68.0.22) port unreachable sent to
192.168.244.26
Apr 4 12:44:37.216 BST: ICMP: dst (10.68.0.22) port unreachable sent to
192.168.244.26
Keith
-----Original Message-----
From: maureen schaar [mailto:maureen.schaar@gmail.com]
Sent: 04 April 2007 11:04
To: Ryder, Keith
Cc: ccielab@groupstudy.com
Subject: Re: OT Traceroute problem
If you do a ping, do you get a DUP! message in the output? A trace
output always shows the ip address of the interface that the packet is
sent out of. So it looks like this router is sending this packet out
twice. Check if this router is using a vlan trunk to forward the
packet and if this particular vlan is allowed on two trunks? This way
you would have 1 ip addres on your router, but the packet is sent out
twice (one over each trunk).
Maureen
On 4/4/07, Ryder, Keith <Keith.Ryder@globalcrossing.com> wrote:
> The problem is that traceroute shows duplicate address as below.
>
>
>
> Trace 10.68.1.41
>
> 1 <1 ms <1 ms <1 ms 10.1.63.252
>
> 2 1 ms <1 ms 1 ms 193.195.216.63
>
> 3 16 ms 16 ms 16 ms 192.168.244.25
>
> 4 22 ms 22 ms 23 ms 192.168.244.58
>
> 5 22 ms 22 ms 22 ms 192.168.244.58
>
> 6 22 ms 22 ms 22 ms 10.68.0.8
>
> 7 21 ms 23 ms 21 ms 10.68.1.41
>
>
>
> It occurs for every device on the local LAN but not when traced to the
> router Ethernet LAN address.
>
> I have seen an explanation of duplicate entries but cannot find it
> anymore.
>
> Can anyone help?
>
> 192.168.244.58 is the router WAN ip address.
>
>
>
> Could it be a LAN problem?
>
>
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:34 ART