From: steve brown (stevelbrown@sympatico.ca)
Date: Sat Nov 16 2002 - 00:17:01 GMT-3
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 - 07:23:01 GMT-3