From: Petr Lapukhov (petr@internetworkexpert.com)
Date: Thu Sep 28 2006 - 02:29:56 ART
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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-- 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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