From: kym blair (kymblair@hotmail.com)
Date: Sat Nov 16 2002 - 01:51:33 GMT-3
Steve,
Perhaps you should get the back-to-back aux connection working before trying
to add DDR. Here is a working config someone posted to Groupstudy a while
back ... like yours but has speed on both aux ports:
hostname R1
!
interface Async10
ip address 129.1.1.4 255.255.255.248
encapsulation ppp
async default routing
async dynamic routing
async mode dedicated
no shutdown
!
line aux 0
modem InOut
transport input all
speed 38400
flowcontrol hardware
--------------------------
hostname R2
!
interface Async10
ip address 129.1.1.5 255.255.255.248
encapsulation ppp
async default routing
async dynamic routing
async mode dedicated
no shutdown
!
line aux 0
modem InOut
transport input all
speed 38400
flowcontrol hardware
Then on to DDR ... Networkers 2002 recommended to always add CHAP even when
not required; it will help the router resolve the mapping; side benefit, you
can "debug ppp auth" to see how it is progressing.
HTH, Kym
>From: steve brown <stevelbrown@sympatico.ca>
>Reply-To: steve brown <stevelbrown@sympatico.ca>
>To: ccielab@groupstudy.com
>Subject: new DDR confusion
>Date: Fri, 15 Nov 2002 22:17:01 -0500
>
>OK I checked the archives and have not found an answer.
>
>I'm trying to get my head around this DDR behaviour. In an earlier post
>I was trying with line simulator and external modems. I decided to try
>a roll over cable between the aux ports. And it works to a certain
>degree which is only adding to confusion.
>
>I'll paste my config for one router called termserver and then debugs
>that show success, dialer going down, unbinding from async interface and
>never coming up again. It works right after router reload. I noticed
>that there is a host route in the routing table that points to the ip
>address of the other routers dialer interface. After the interface goes
>down that route disappears, so I put a static route in to replace the
>one that disappeared, it worked once, then never worked again (as shown
>in debugs). Just when I think that I have it figured out, more
>inconsistencies present themselves and I'm back a square one.
>
>So if anybody has any ideas or can explain behaviour I would appreciate
>it.
>
>-----------------
>termserver config
>-----------------
>Current configuration : 1458 bytes
>!
>version 12.1
>service timestamps debug uptime
>service timestamps log uptime
>no service password-encryption
>!
>hostname termserver
>!
>!
>username all
>username frs
>!
>!
>!
>!
>ip subnet-zero
>no ip domain-lookup
>ip host frs 2001 10.0.1.1
>ip host modem 2017 10.0.1.1
>ip host c1 2010 10.0.1.1
>ip host c2 2011 10.0.1.1
>ip host c3 2012 10.0.1.1
>!
>chat-script generic ABORT BUSY ABORT NO ## AT OK ATDT\T TIMEOUT 30
>CONNECT
>chat-script virtualmodem ""
>!
>!
>!
>!
>!
>interface Loopback0
> ip address 10.0.1.1 255.255.255.0
>!
>interface Loopback1
> ip address 10.2.2.1 255.255.255.0
>!
>interface Ethernet0
> no ip address
> shutdown
>!
>interface Serial0
> no ip address
>!
>interface Async17
> no ip address
> encapsulation ppp
> no ip route-cache
> no ip mroute-cache
> dialer in-band
> dialer pool-member 1
> async default routing
> async dynamic routing
> async mode dedicated
>!
>interface Dialer0
> ip address 193.168.1.2 255.255.255.0
> encapsulation ppp
> dialer pool 1
> dialer remote-name frs
> dialer string 1
> dialer-group 1
>!
>ip classless
>ip route 10.2.3.0 255.255.255.0 193.168.1.1
>ip route 10.2.3.0 255.255.255.0 Async17
>ip route 193.168.1.1 255.255.255.255 Dialer0
>ip http server
>!
>dialer-list 1 protocol ip permit
>!
>alias exec c copy run start
>!
>line con 0
> logging synchronous
>line 1 16
> transport input all
>line aux 0
> exec-timeout 0 0
> script dialer virtualmodem
> modem InOut
> modem autoconfigure discovery
> no exec
> transport input all
> flowcontrol hardware
>line vty 0 4
> login
>!
>end
>--------------------
>------------------------
>debugs from termserver
>------------------------
>termserver#ping 10.2.3.1
>
>Type escape sequence to abort.
>Sending 5, 100-byte ICMP Echos to 10.2.3.1, timeout is 2 seconds:
>!!!!!
>Success rate is 100 percent (5/5), round-trip min/avg/max = 248/248/248
>ms
>termserver#sh int dialer 0
>Dialer0 is up, line protocol is up (spoofing)
> Hardware is Unknown
> Internet address is 193.168.1.2/24
> MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation PPP, loopback not set
> DTR is pulsed for 1 seconds on reset
> Interface is bound to As17
> Last input never, output never, output hang never
> Last clearing of "show interface" counters 00:46:42
> 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 0/0/16 (active/max active/max total)
> Reserved Conversations 0/0 (allocated/max allocated)
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 127 packets input, 16034 bytes
> 126 packets output, 16038 bytes
>Bound to:
>Async17 is up, line protocol is up
> Hardware is Async Serial
> MTU 1500 bytes, BW 9 Kbit, DLY 100000 usec,
>
>termserver#sh int async 17
>Async17 is up, line protocol is up
> Hardware is Async Serial
> MTU 1500 bytes, BW 9 Kbit, DLY 100000 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation PPP, loopback not set
> Keepalive not set
> DTR is pulsed for 5 seconds on reset
> Time to interface disconnect: idle 00:00:56
> Interface is bound to Di0 (Encapsulation PPP)
> LCP Open
> Open: IPCP, CDPCP
> Last input 00:00:22, output 00:00:06, output hang never
> Last clearing of "show interface" counters 00:46:56
> Input queue: 1/75/0/0 (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)
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 142 packets input, 16286 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> 2 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
>
>termserver#
>00:48:05: %LINK-5-CHANGED: Interface Async17, changed state to reset
>00:48:05: %DIALER-6-UNBIND: Interface As17 unbound from profile Di0
>termserver#
>00:48:06: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async17,
>changed state to down
>termserver#
>00:48:10: %LINK-3-UPDOWN: Interface Async17, changed state to down
>termserver#ping 10.2.3.1
>
>Type escape sequence to abort.
>Sending 5, 100-byte ICMP Echos to 10.2.3.1, timeout is 2 seconds:
>.....
>Success rate is 0 percent (0/5)
>termserver#ping 10.2.3.1
>
>Type escape sequence to abort.
>Sending 5, 100-byte ICMP Echos to 10.2.3.1, timeout is 2 seconds:
>.....
>Success rate is 0 percent (0/5)
>termserver#sh ip route
>Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
>
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
> i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS
>inter area
> * - candidate default, U - per-user static route, o - ODR
> P - periodic downloaded static route
>
>Gateway of last resort is not set
>
> 10.0.0.0/24 is subnetted, 3 subnets
>C 10.2.2.0 is directly connected, Loopback1
>S 10.2.3.0 [1/0] via 193.168.1.1
>C 10.0.1.0 is directly connected, Loopback0
> 193.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
>C 193.168.1.0/24 is directly connected, Dialer0
>S 193.168.1.1/32 is directly connected, Dialer0
>termserver#ping 10.2.3.1
>
>Type escape sequence to abort.
>Sending 5, 100-byte ICMP Echos to 10.2.3.1, timeout is 2 seconds:
>.....
>
>termserver#ping
>Protocol [ip]:
>Target IP address: 10.2.3.1
>Repeat count [5]: 50
>Datagram size [100]:
>Timeout in seconds [2]:
>Extended commands [n]:
>Sweep range of sizes [n]:
>Type escape sequence to abort.
>Sending 50, 100-byte ICMP Echos to 10.2.3.1, timeout is 2 seconds:
>...................
>00:51:13: %LINK-3-UPDOWN: Interface Async17, changed state to up
>00:51:13: %DIALER-6-BIND: Interface As17 bound to profile Di0...........
>
>00:51:35: %LINK-5-CHANGED: Interface Async17, changed state to reset
>00:51:35: %DIALER-6-UNBIND: Interface As17 unbound from profile Di0...
>00:51:40: %LINK-3-UPDOWN: Interface Async17, changed state to down.
>00:51:44: %LINK-3-UPDOWN: Interface Async17, changed state to up
>00:51:44: %DIALER-6-BIND: Interface As17 bound to profile Di0..........
>00:52:04: %DIALER-6-UNBIND: Interface As17 unbound from profile Di0.
>00:52:06: %LINK-5-CHANGED: Interface Async17, changed state to reset...
>00:52:11: %LINK-3-UPDOWN: Interface Async17, changed state to down.
>00:52:14: %LINK-3-UPDOWN: Interface Async17, changed state to up
>00:52:14: %DIALER-6-BIND: Interface As17 bound to profile Di0.
>Success rate is 0 percent (0/50)
>
>-------------------------
>
>termserver#
>00:59:01: %LINK-3-UPDOWN: Interface Async17, changed state to up
>00:59:01: %DIALER-6-BIND: Interface As17 bound to profile Di0
>termserver#
>00:59:25: %LINK-5-CHANGED: Interface Async17, changed state to reset
>00:59:25: %DIALER-6-UNBIND: Interface As17 unbound from profile Di0
>termserver#
>00:59:30: %LINK-3-UPDOWN: Interface Async17, changed state to down
>termserver#
>00:59:33: %LINK-3-UPDOWN: Interface Async17, changed state to up
>00:59:33: %DIALER-6-BIND: Interface As17 bound to profile Di0
>
>
>------------------------------------------------------------
>
>So if anybody has any ideas or can explain behaviour I would appreciate
>it.
>
>Thanks
>
>Steve.
This archive was generated by hypermail 2.1.4 : Tue Dec 03 2002 - 07:23:02 GMT-3