Connecting Two LANs Over PPP leased line

This is kind of a complicated solution.  Before I get into it to thick, are you a member of the IT department allowed to make router config changes, and have admin access to your network?

Are you comfortable with the Cisco OS, and are you at the main location or the remote location?

http://www.cisco.com/en/US/products/hw/routers/ps380/products_configuration_guide_chapter09186a0080118d24.html

Here's a really good start.

Yes I have control over all routers and I am fairly comfortable with the Cisco OS.
Thanks

>We are able to connect to the internet from the remote location but we are unable to share files or have the DHCP server assign IPs to the remote location.  
Once you establish layer 3 connectivity, which is proven by the internet access, then the issues must lie with
1) DHCP server. Do you have a scope set up and activated for the 192.168.11.0 subnet?
2) name resolution and permissions within the Microsoft network will control the ability to share/see files accross the network.

Can you post result of "show interface serial 0" from both ends. I'm looking for the error counts. Since neither end appears to be providing the T1 clocking, you may have a lot of errors that affect the nebios broadcasts..

Here are the rusults of "show interface serial 0"


MainOffice#show interfaces serial 0
Serial0 is up, line protocol is up
  Hardware is PQUICC with Fractional T1 CSU/DSU
  Internet address is 10.0.1.1/24
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 178/255, txload 8/255, rxload 3/255
  Encapsulation HDLC, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 141
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/9/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1158 kilobits/sec
  5 minute input rate 24000 bits/sec, 40 packets/sec
  5 minute output rate 54000 bits/sec, 40 packets/sec
     18726310 packets input, 1811155167 bytes, 0 no buffer
     Received 587264 broadcasts, 8 runts, 694439 giants, 0 throttles
     354910633 input errors, 45299041 CRC, 299242354 frame, 0 overrun, 0 ignored
, 10369238 abort
     17940881 packets output, 3899477795 bytes, 0 underruns
     0 output errors, 0 collisions, 140 interface resets
     0 output buffer failures, 0 output buffers swapped out
     231 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

MainOffice#



Remote1#show interfaces serial 0
Serial0 is up, line protocol is up
  Hardware is PQUICC with Fractional T1 CSU/DSU
  Description: connected to Internet
  Internet address is 10.0.1.2/24
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 156/255, txload 3/255, rxload 8/255
  Encapsulation HDLC, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 142
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/26/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1158 kilobits/sec
  5 minute input rate 51000 bits/sec, 37 packets/sec
  5 minute output rate 21000 bits/sec, 39 packets/sec
     16558248 packets input, 3651508595 bytes, 0 no buffer
     Received 499911 broadcasts, 0 runts, 4823 giants, 0 throttles
     216843448 input errors, 9196168 CRC, 206907860 frame, 0 overrun, 0 ignored,
 739420 abort
     17720463 packets output, 1733170168 bytes, 0 underruns
     0 output errors, 0 collisions, 129 interface resets
     0 output buffer failures, 0 output buffers swapped out
     7 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

Remote1#

HUGE error count, as I suspected.. this will have a big impact on the netbios stuff..

>    354910633 input errors, 45299041 CRC, 299242354 frame, 0 overrun, 0 ignored
, 10369238 abort

Suggest setting the clock source to be the MO side..
  interface serial 0
    service-module t1 clock source internal
    clock rate 2000000

After you do that, clear the interface counters and then monitor for a while..

I will be out of the office for a few hours and I will monitor when I get back
Thanks

Once I set the clock source on the MainOffice side we lost communication with router on the Remote side.  I needed to remove

service-module t1 clock source internal

from the serial 0 interface to regain communication between the two routers.

Thanks,
I have contacted the telco and they are checking their cable, then I will check if I need to provide the clocking.  THis should be done Tonight.  Then we will see if the errors go away.

I guess the telco could not make it out before the weekend so I will wait a little longer.  But I have another question.  I can telnet into the Main office router from the server once in telnet I can ping the server, ping the remote route, ping any computer on either the main or the remote lan but if I telnet from inside the telnet of the main souter to the remote router I can only ping the remote computers, the remote router and the main router.  I can not ping any computers on the mair lan or gateway from there.  Any idea why?

Thanks

My guess would be routing issues to the serial interface subnet. Their main gateway does not know about your 10.0.1.2 serial link IP subnet..

I can ping 10.0.1.2 from telnet on the Main router.  Do I need to add a permanent ip configration on the main router to 10.0.1.2?

Thanks

The telco tested the line and said that all errors are coming from the routers and not the line.  THey said that one of the routers needed to be the clock source and the other needed to be the clock source to be the line.  I have tried it in every way I can think of and the routers are only able to communicate if both are setup with the clock source as the line.  I have switched them from HDLC to PPP change the clock rate but I have no serial communications with either router set with clock source Internal.  Any idea!!!
Thanks

Try making the one at the main office the clock source again, the "bounce" the interface with "shut" wait 30 sec, "no shut"
also, try a different clock rate. use  clock rate ? to see what your options are and choose something closer to T1 speed of 1500000

The same outcome.  I bounced the main office router 5 time in an 8 minute period and changed the clock rate to 1300000.  I took the main office clock source back to line and it connected immediaely.  The t1 line is direct from the main location to the remote location with nothing else inbetween.  I think I need to take a vacation.

The olny thinh I can think of is a bad WIC card.  Hopefully it will equaite.

The IP helper command now works on the remote router and I can ping from one lan to the other.  I modified the Routing table on the server which opened up the communications between routers.  I am still unable to share files between lans and I can only get the routers to communicate if both are set to clock source line.  If either one is switched to internal the communications stop.  I still a huge amount of errors on the serial port.  Any ideas.
Thanks

The telco could not find what was causing the problem but they started supplying the clock and all errors went away.  I tried two different routers at each end with the same outcome so it does not appear to be a router issue but now the errors are gone and the connection is up to speed.