From: Stephen Masraum (masraum@xxxxxxxxxx)
Date: Wed Jan 24 2001 - 19:19:49 GMT-3
First thoughts are a layer 3 issue. If CDP is working and does see the
router at the other end and not some other router (have seen this when a
company is turning up multiple links between multiple sites, telco gets the
sites wrong and the connections aren't going where they should be) then we
know layer 2 is working. It would be nice to have debugs from both sides
(pinger and pingee simultaneously) when doing a ping. That may help. I
have seen what at first appears to be a good setup give a sending going one
way and an "encapsulation failed" going the other.
Good Luck,
Steve
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Nodir Nazarov
Sent: Monday, January 22, 2001 3:43 PM
To: ccielab@groupstudy.com
Subject: weird, weird, weird simple connection
Hello, I need help in supposedly simplest configuration.
I have 2 sites connected via T1.
R1<------------------>R2,
192.168.1.2 192.168.1.1
Where R1 has T1 and R2 has T1 channel in DS3. R1 - c2620. R2 - 7206vxr.I
have been doing similar scenario many many times and had no problem. This
time however I see both serials up/up but I can't ping. When I ping from
R2 to R1 this is what I got on R2:
15w3d: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial1/0/8:0), len 100,
sending.
15w3d: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial1/0/8:0), len 100,
sending.
15w3d: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial1/0/8:0), len 100,
sending.
When I ask to ping from R1 to R2 I see on R2:
15w3d: IP: s=192.168.1.2 (Serial1/0/8:0), d=192.168.1.1 (Serial1/0/8:0),
len 100, rcvd 3
15w3d: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial1/0/8:0), len 100,
sending
15w3d: IP: s=192.168.1.2 (Serial1/0/8:0), d=192.168.1.1 (Serial1/0/8:0),
len 100, rcvd 3
15w3d: IP: s=192.168.1.1 (local), d=192.168.1.2 (Serial1/0/8:0), len 100,
sending
But no success. On both interfaces - no errors at all. I can see the
routers through cdp. Encapsulation on both ends - hdlc. No access lists at
all, vanilla configuration.
I know you will ask details about the other end, but all it has is:
int se 0/0
ip address 192.168.1.2 255.255.255.0
I am afraid to get something like this on the lab. Aren't you ??
Nodir
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