From: steve brown (stevelbrown@sympatico.ca)
Date: Mon Nov 18 2002 - 00:12:24 GMT-3
Hi Y'all
I found out what the problem was.
It has to do with the modem command under line x (tty/aux port )(ie line
65). I had modem inout set on both sides, it says to use this to configure
the modem for in and out usage). Well it doesn't work with rollover back to
back aux configuration.
I tested a couple of combinations and this is what I found:
host --> inout works
inout --> host does not work
host --> dialin works
dialin --> host does not work
host --> host does not work
dialin --> dialin does not work
inout --> inout does not work
I will try these out with my external modems and my teltone line simulator
to see if I get comparable results.
Thanks to those of you who responded.
Steve Brown
steve brown wrote:
> Hi Y'all
>
> I've been struggling with this all weekend, going crazy.
>
> I trying to use back to back aux ports with rollover cable and ddr.
>
> When I do back to back aux with rollover it works fine without ddr. I
> can ping the lo of opposite router thru rollover cable.
>
> As soon as I introduce ddr, it falls apart.
>
> I can no longer ping accross aux ports and the async/dialer are bouncing
> up and down/ binding and unbinding.
>
> Brian Dennis, I found your configs in the archives (June 2001) and I
> used them almost identical in my two 26xx routers running 12.1.
> But mine are not working.
>
> Here are configs.
>
> v1#sh run
> Building configuration...
>
> Current configuration : 1357 bytes
> !
> version 12.1
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname v1
> !
> !
> username v2 password 0 cisco
> username v1 password 0 cisco
> !
> !
> !
> !
> memory-size iomem 10
> ip subnet-zero
> !
> ip audit notify log
> ip audit po max-events 100
> chat-script virtualmodem " "
> !
> !
> !
> !
> voice-port 1/0/0
> !
> voice-port 1/0/1
> !
> !
> !
> !
> interface Loopback0
> ip address 10.2.2.1 255.255.255.0
> !
> interface FastEthernet0/0
> no ip address
> shutdown
> duplex auto
> speed auto
> !
> interface Serial0/0
> no ip address
> shutdown
> no fair-queue
> !
> interface FastEthernet0/1
> no ip address
> shutdown
> duplex auto
> speed auto
> !
> interface Async65
> 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
> ppp authentication chap
> !
> interface Dialer0
> ip address 193.168.1.1 255.255.255.0
> encapsulation ppp
> dialer pool 1
> dialer remote-name v2
> dialer string 12
> dialer-group 1
> ppp authentication chap
> !
> ip classless
> ip route 10.2.3.0 255.255.255.0 193.168.1.2
> ip http server
> !
> dialer-list 1 protocol ip permit
> !
> !
> alias exec c copy run start
> !
> line con 0
> logging synchronous
> line aux 0
> exec-timeout 0 0
> script dialer virtualmodem
> modem InOut
> transport input all
> speed 38400
> flowcontrol hardware
> line vty 0 4
> login
> !
> end
>
> -----------------------------------
>
> v2#
> v2#sh run
> Building configuration...
>
> Current configuration : 1325 bytes
> !
> version 12.1
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname v2
> !
> !
> username v1 password 0 cisco
> username v2 password 0 cisco
> !
> !
> !
> !
> ip subnet-zero
> !
> ip audit notify log
> ip audit po max-events 100
> chat-script virtualmodem " "
> !
> !
> !
> !
> voice-port 1/0/0
> !
> voice-port 1/0/1
> !
> !
> !
> !
> interface Loopback0
> ip address 10.2.3.1 255.255.255.0
> !
> interface Ethernet0/0
> no ip address
> shutdown
> !
> interface Serial0/0
> no ip address
> shutdown
> no fair-queue
> !
> interface Ethernet0/1
> no ip address
> shutdown
> !
> interface Serial0/1
> no ip address
> shutdown
> !
> interface Async65
> 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
> ppp authentication chap
> !
> interface Dialer0
> ip address 193.168.1.2 255.255.255.0
> encapsulation ppp
> dialer pool 1
> dialer remote-name v1
> dialer string 21
> dialer-group 1
> ppp authentication chap
> !
> ip classless
> ip route 10.2.2.0 255.255.255.0 193.168.1.1
> ip http server
> !
> dialer-list 1 protocol ip permit
> !
> !
> alias exec c copy run start
> !
> line con 0
> logging synchronous
> line aux 0
> exec-timeout 0 0
> script dialer virtualmodem
> modem InOut
> transport input all
> speed 38400
> flowcontrol hardware
> line vty 0 4
> login
> !
> end
>
> v2#
>
> --------------------------------------------------------------------
>
> v2#
> 00:28:22: %LINK-5-CHANGED: Interface Async65, changed state to reset
> v2#
> 00:28:22: %DIALER-6-UNBIND: Interface As65 unbound from profile Di0
> v2#
> 00:28:27: %LINK-3-UPDOWN: Interface Async65, changed state to up
> v2#
> 00:28:27: %DIALER-6-BIND: Interface As65 bound to profile Di0
> v2#
> ------------------------------------------------------------------------
>
> v2#sh int async 65
> Async65 is up, line protocol is down
> Hardware is Async Serial
> MTU 1500 bytes, BW 38 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 00:00:25
> Interface is bound to Di0 (Encapsulation PPP)
> LCP Open
> Closed: CDPCP
> Last input 00:00:02, output 00:00:02, output hang never
> Last clearing of "show interface" counters 00:29:50
> Input queue: 2/75/0/0 (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
> 221 packets input, 5789 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
> 223 packets output, 5845 bytes, 0 underruns
> 0 output errors, 0 collisions, 21 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 0 carrier transitions
> ---------------------------------------------------------------------
> 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 As65
> Last input never, output never, output hang never
> Last clearing of "show interface" counters 00:30:15
> 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
> 0 packets input, 0 bytes
> 0 packets output, 0 bytes
> Bound to:
> Async65 is up, line protocol is down
> Hardware is Async Serial
> MTU 1500 bytes, BW 38 Kbit, DLY 100000 us
> 00:30:27: %DIALER-6-BIND: Interface As65 bound to profile Di0ec,
> 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 00:01:54
> Interface is bound to Di0 (Encapsulation PPP)
> LCP Open
> Closed: CDPCP
> Last input 00:00:04, output 00:00:04, output hang never
> Last clearing of "show interface" counters 00:30:20
> Input queue: 2/75/0/0 (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
> 226 packets input, 5909 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
> 228 packets output, 5965 bytes, 0 underruns
> 0 output errors, 0 collisions, 22 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 0 carrier transitions
>
> ----------------------------------------------------------------------
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