From: Michael Stout (michaelgstout@hotmail.com)
Date: Thu Sep 28 2006 - 02:44:15 ART
Thank you Petr.
That was my suspician.
I've seen this before This time i followed through and added the routing
protocol and found that the interface was working.
And, thank you again Brian.
--------------------------------------------------------------------
From: "Petr Lapukhov" <petr@internetworkexpert.com>
To: "Michael Stout" <michaelgstout@hotmail.com>
CC: bdennis@internetworkexpert.com, ccielab@groupstudy.com
Subject: Re: ppp connections
Date: Thu, 28 Sep 2006 09:29:56 +0400
Hmm
I had the similar problem, which was related to IOS version :)
I didn't find the bug ID actually (too lazy for that), just changed
IOS version, and PPP started to work fine :)
HTH
2006/9/28, Michael Stout <michaelgstout@hotmail.com>:
yes.
The ping works when using hdlc
But
When i return the interface to ppp encapsulation, the ping fails.
--------------------------------------------------------------------
From: "Brian Dennis" < bdennis@internetworkexpert.com>
To: "Michael Stout" <michaelgstout@hotmail.com>
Subject: RE: ppp connections
Date: Thu, 28 Sep 2006 00:32:36 -0400
Can you ping if you remove PPP?
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
From: Michael Stout [mailto:michaelgstout@hotmail.com]
Sent: Wednesday, September 27, 2006 9:23 PM
To: Brian Dennis
Subject: RE: ppp connections
Thank you.
R4#
R4#srint ser0/1
Building configuration...
Current configuration : 100 bytes
!
interface Serial0/1
ip address 128.1.45.4 255.255.255.0
encapsulation ppp
clockrate 56000
end
R4#sho int ser0/1
Serial0/1 is up, line protocol is up
Hardware is DSCC4 Serial
Internet address is 128.1.45.4/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: CDPCP, IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:01, output 00:00:02, output hang never
Last clearing of "show interface" counters 00:48:03
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
482 packets input, 34795 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
1 input errors, 1 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
677 packets output, 43987 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 output buffer failures, 0 output buffers swapped out
2 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R4#sho ip route rip
128.1.0.0/16 is variably subnetted, 8 subnets, 2 masks
R 128.1.5.0/24 [120/1] via 128.1.45.5, 00:00:11, Serial0/1
R 128.1.125.0/24 [120/1] via 128.1.45.5, 00:00:11, Serial0/1
R 128.1.125.1/32 [120/1] via 128.1.45.5, 00:00:11, Serial0/1
R 128.1.125.2/32 [120/1] via 128.1.45.5, 00:00:11, Serial0/1
R4#sho ip route connected
128.1.0.0/16 is variably subnetted, 8 subnets, 2 masks
C 128.1.14.0/24 is directly connected, FastEthernet0/0
C 128.1.45.5/32 is directly connected, Serial0/1
C 128.1.45.0/24 is directly connected, Serial0/1
C 128.1.48.0/24 is directly connected, FastEthernet0/1
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.4.0 is directly connected, Loopback0
R4#
R4#sho ip int br | in up
FastEthernet0/0 128.1.14.4 YES manual
up up
FastEthernet0/1 128.1.48.4 YES manual
up up
Serial0/1 128.1.45.4 YES manual
up up
Loopback0 150.1.4.4 YES manual
up up
R4#
R5#
R5#sho run int ser0/1
Building configuration...
Current configuration : 83 bytes
!
interface Serial0/1
ip address 128.1.45.5 255.255.255.0
encapsulation ppp
end
R5#sho int ser0/1
Serial0/1 is up, line protocol is up
Hardware is DSCC4 Serial
Internet address is 128.1.45.5/24
MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Open
Open: CDPCP, IPCP, loopback not set
Keepalive set (10 sec)
Last input 00:00:02, output 00:00:02, output hang never
Last clearing of "show interface" counters 00:50:27
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1158 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
716 packets input, 46547 bytes, 0 no buffer
Received 0 broadcasts, 6 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 1 abort
505 packets output, 36009 bytes, 0 underruns
0 output errors, 0 collisions, 4 interface resets
0 output buffer failures, 0 output buffers swapped out
14 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up
R5#sho ip route rip
128.1.0.0/16 is variably subnetted, 10 subnets, 2 masks
R 128.1.14.0/24 [120/1] via 128.1.45.4, 00:00:07, Serial0/1
R 128.1.48.0/24 [120/1] via 128.1.45.4, 00:00:07, Serial0/1
R5#sho ip route connected
128.1.0.0/16 is variably subnetted, 10 subnets, 2 masks
C 128.1.5.0/24 is directly connected, FastEthernet0/1
C 128.1.45.4/32 is directly connected, Serial0/1
C 128.1.45.0/24 is directly connected, Serial0/1
C 128.1.125.0/24 is directly connected, Virtual-Access2
is directly connected, Virtual-Access3
C 128.1.125.1/32 is directly connected, Virtual-Access2
C 128.1.125.2/32 is directly connected, Virtual-Access3
150.1.0.0/24 is subnetted, 4 subnets
C 150.1.5.0 is directly connected, Loopback0
R5#sho ip int brief | in up
Serial0/0 unassigned YES unset
up up
Serial0/0.125 unassigned YES manual
up up
FastEthernet0/1 128.1.5.5 YES manual
up up
Serial0/1 128.1.45.5 YES manual
up up
Virtual-Access2 128.1.125.5 YES TFTP
up up
Virtual-Access3 128.1.125.5 YES TFTP
up up
Loopback0 150.1.5.5 YES manual
up up
R5#
--------------------------------------------------------------------
From: "Brian Dennis" <bdennis@internetworkexpert.com >
To: "Michael Stout"
<michaelgstout@hotmail.com>,<ccielab@groupstudy.com>
Subject: RE: ppp connections
Date: Thu, 28 Sep 2006 00:04:29 -0400
The configurations for the routers would be nice to see. Also the
output of a show interface from both routers and lastly an output
of
each router's routing tables would help. Without this information
your
replies will be pretty much just a guess and one may even be the
right
guess ;-) For example it could be an access list issue, IPCP isn't
"open", routing problem, etc but who knows without more
information.
As a side note when I taught a CCIE class with Paul Borghese years
ago
we told the students that they could never tell us that they "can't
ping". We told them that they must give us more details about
their
problem before we would help them. We said that the "I can't ping"
students are in the CCNA level classes and not the CCIE level
classes
;-)
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com ] On
Behalf
Of
Michael Stout
Sent: Wednesday, September 27, 2006 8:47 PM
To: ccielab@groupstudy.com
Subject: ppp connections
Hello:
I just built a link using ppp over a directly connected serial
link.This
link is up / up.I am unable to ping my directly connected neighbor.
Is
this explainable?I know i've pinged my neighbor before but now, I
can't.
Can somebody please advise me on this delima? Thank you kindly.
PS
I do see the peer neighbor route and i have a rip connection over
this
link.
Thank you again.
_______________________________________________________________________
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_______________________________________________________________________
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-- Petr Lapukhov, CCIE #16379 petr@internetworkexpert.comInternetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Outside US: 775-826-4344
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