From: C. Warren (chwarren@xxxxxxx)
Date: Fri Jul 19 2002 - 17:37:37 GMT-3
Here's an e-mail I pulled of Groupstudy back last year.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
David Fahed
Sent: Tuesday, February 06, 2001 9:37 AM
To: xuefengleng
Cc: Rob Webber; ccielab@groupstudy.com
Subject: Re: AUX-AUX simulated DDR - and it works!
You can use the cisco configuraton blue cable!
xuefengleng a icrit :
> Hi,Rob Webber
>
> What is the cable between the two router,
>
> r2 (Aux) ---------------------- (Aux)R3
> rollover cable
>
> I have tried, but I fail to dial, I must miss something, any
> suggestion?
>
> TZ 01-1-26 12:55:00 DzP45@#:
> >I know there have been a few requests to be able to simulate DDR
> >without using modems, ISDN lines, simulators, etc. I believe I have
> >an answer. I have been able to get r3 to "dial" r4 in my rack. Yes,
> >the line stays quiet until interesting traffic passes. Yes, it does
> >time-out after the idle timer expires. Here's how did it:
> >
> >I used the standard console cable ("null" cable, "rollover" cable)
> >between the AUX ports of my r3 and r4. As you can see I am using
> >dialer profiles. r4's config is fairly vanilla as far as dial is
> >concerned. There are two key commands on r3:
> >
> >line aux 0
> > modem Host
> > script dialer myscript
> >
> >The modem Host command instructs the router to be able to dial out
> >and to use DSR for modem control instead of CTS (no, I don't really
> >understand this). The second command instructs r3 to use the
> >chat-script called "myscript" when it dials. This command references
> >the global command chat-script myscript "" "". This effectively tells
> >the router not to perform any modem commands.
> >
> >So far I have tested it with pinging the actual dialer interface IP
> >address at the other end as well as with floating static routes. I
> >haven't gone any farther (dial watch, snapshot, etc.) yet. In this
> >config r3 can call r4, but not the other way.
> >
> >If anyone has any suggestions or improvements, feel free to post
> >them! Good luck, Rob.
> >------------------------------------------------------
> >Here are the actual configs:
> >
> >r3#c
> >Building configuration...
> >
> >
> >
> >Current configuration:
> >!
> >! Last configuration change at 16:25:42 EST Fri Jan 26 2001 !
> >version 12.0
> >service timestamps debug uptime
> >service timestamps log uptime
> >no service password-encryption
> >!
> >hostname r3
> >!
> >enable secret 5 $1$XyuD$Oej63qbu0VVbBSV9qMuti0
> >!
> >username r4 password 0 cisco
> >ip subnet-zero
> >ip tcp synwait-time 5
> >no ip domain-lookup
> >ip host r5 2002 200.200.200.1
> >ip name-server 207.238.183.71
> >ip name-server 207.238.183.72
> >ipx routing 0003.0003.0003
> >chat-script myscript "" ""
> >!
> >!
> >clock timezone EST 0
> >!
> >source-bridge ring-group 1000
> >dlsw local-peer peer-id 172.168.30.33 group 1 promiscuous
> >dlsw remote-peer 0 tcp 172.168.40.1
> >dlsw icanreach mac-address 0000.1234.1234 mask ffff.ffff.ffff
> >dlsw icanreach netbios-name BLOWME
> >!
> >!
> >interface Loopback0
> > ip address 172.168.30.65 255.255.255.224
> > no ip directed-broadcast
> > ipx network 3065
> >!
> >interface Loopback1
> > ip address 172.168.30.97 255.255.255.224
> > no ip directed-broadcast
> > ipx network 3097
> >!
> >interface Serial0
> > ip address 172.168.100.3 255.255.255.0
> > no ip directed-broadcast
> > encapsulation frame-relay
> > no ip route-cache
> > ip ospf network point-to-multipoint
> > no ip mroute-cache
> > logging event subif-link-status
> > logging event dlci-status-change
> > ipx network 100
> > frame-relay map ipx 100.0003.0003.0003 105 broadcast
> > frame-relay map ipx 100.0005.0005.0005 105 broadcast
> > frame-relay map ipx 100.0006.0006.0006 105 broadcast
> > frame-relay map ip 172.168.100.3 105 broadcast
> > frame-relay map ip 172.168.100.5 105 broadcast
> > frame-relay map ip 172.168.100.6 105 broadcast
> >!
> >interface Serial1
> > ip address 150.100.50.42 255.255.255.248
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > ipx network 500
> >!
> >interface TokenRing0
> > mtu 1500
> > ip address 172.168.30.33 255.255.255.240
> > no ip directed-broadcast
> > no ip route-cache
> > no ip mroute-cache
> > ipx network 3033
> > ipx network 3034 encapsulation SNAP secondary
> > ring-speed 16
> > source-bridge 100 1 1000
> >!
> >interface Async9
> > no ip address
> > no ip directed-broadcast
> > 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
> > no peer default ip address
> > ppp authentication chap
> >!
> >interface Dialer0
> > ip address 1.1.1.1 255.255.255.0
> > no ip directed-broadcast
> > encapsulation ppp
> > dialer remote-name r4
> > dialer string 1234
> > dialer pool 1
> > dialer-group 1
> > ppp authentication chap
> >!
> >router ospf 1
> > area 3 range 172.168.30.0 255.255.255.0
> > area 10 virtual-link 172.168.200.1
> > passive-interface TokenRing0
> > network 172.168.30.32 0.0.0.31 area 3
> > network 172.168.30.64 0.0.0.31 area 3
> > network 172.168.30.96 0.0.0.31 area 3
> > network 172.168.100.0 0.0.0.255 area 10
> >!
> >router bgp 1
> > no synchronization
> > neighbor 172.168.100.5 remote-as 1
> > no auto-summary
> >!
> >ip classless
> >!
> >dialer-list 1 protocol ip permit
> >!
> >!
> >!
> >ipx router eigrp 1
> > network 100
> >!
> >!
> >!
> >banner motd ^CC
> >This is the 2510
> >^C
> >alias exec i show ip route
> >alias exec c show running-config
> >alias exec b show ip int brief
> >alias exec t config term
> >!
> >line con 0
> > exec-timeout 0 0
> > privilege level 15
> > password lucy
> > length 42
> > transport input none
> >line 1 8
> > no exec
> > transport input all
> >line aux 0
> > exec-timeout 0 0
> > script dialer myscript
> > modem Host
> > transport input all
> > speed 38400
> > flowcontrol hardware
> >line vty 0 4
> > exec-timeout 0 0
> > privilege level 15
> > password lucy
> > no login
> > length 42
> >!
> >ntp clock-period 17179941
> >ntp server 150.100.50.41
> >end
> >
> >r3#ping 1.1.1.2
> >
> >Type escape sequence to abort.
> >Sending 5, 100-byte ICMP Echos to 1.1.1.2, timeout is 2 seconds:
> >
> >18:33:51: As9 DDR: rotor dialout [priority]
> >18:33:51: As9 DDR: Dialing cause ip (s=1.1.1.1, d=1.1.1.2)
> >18:33:51: As9 DDR: Attempting to dial 1234
> >18:33:51: CHAT9: Attempting async line dialer script
> >18:33:51: CHAT9: Dialing using Modem script: myscript & System
> >script: none
> >18:33:51: CHAT9: process started
> >18:33:51: CHAT9: Asserting DTR
> >18:33:52: CHAT9: Chat script myscript started
> >18:33:52: CHAT9: Chat script myscript finished, status = Success.
> >18:33:54: %LINK-3-UPDOWN: Interface Async9, changed state to up
> >18:33:54: %DIALER-6-BIND: Interface As9 bound to profile Di0.!!!
> >Success rate is 60 percent (3/5), round-trip min/avg/max = 80/84/92
ms
> >18:33:54: As9 DDR: dialer protocol up
> >18:33:55: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async9,
changed
> >state
> >to up
> >
> >r3# ping 1.1.1.2
> >Type escape sequence to abort.
> >Sending 5, 100-byte ICMP Echos to 1.1.1.2, timeout is 2 seconds:
> >!!!!! Success rate is 100 percent (5/5), round-trip min/avg/max =
> >76/78/80 ms r3#
> >r3#
> >r3#sho as st
> >Async protocol statistics:
> >
> > Int Local Remote Qd InPack OutPac Inerr
Drops
> >MTU
> >* 9 0.0.0.0 1.1.1.2 0 250 257 0
0
> >1500
> >
> >
> > Rcvd: 250 packets, 19549 bytes
> > 0 format errors, 0 checksum errors, 0 overrun
> > Sent: 257 packets, 19975 bytes, 0 dropped
> >
> >r3#
> >17:51:55: As9 DDR: re-enable timeout
> >
> >r4#c
> >Building configuration...
> >
> >
> >
> >Current configuration:
> >!
> >version 12.0
> >service timestamps debug uptime
> >service timestamps log uptime
> >no service password-encryption
> >!
> >hostname r4
> >!
> >!
> >username r3 password 0 cisco
> >ip subnet-zero
> >ip tcp synwait-time 5
> >no ip domain-lookup
> >ip name-server 207.238.183.71
> >ip name-server 207.238.183.72
> >ipx routing 0004.0004.0004
> >ipx gns-response-delay 1100
> >!
> >!
> >!
> >source-bridge ring-group 1000
> >dlsw local-peer peer-id 172.168.40.1 group 1 border promiscuous !
> >!
> >interface Serial0
> > ip address 172.168.200.2 255.255.255.0
> > no ip directed-broadcast
> > encapsulation frame-relay
> > ip split-horizon
> > no ip mroute-cache
> > logging event subif-link-status
> > logging event dlci-status-change
> > ipx network 200
> > no fair-queue
> >!
> >interface Serial1
> > no ip address
> > no ip directed-broadcast
> > shutdown
> >!
> >interface TokenRing0
> > ip address 172.168.40.1 255.255.255.0
> > no ip directed-broadcast
> > ipx network 40
> > ring-speed 16
> > source-bridge 100 1 1000
> >!
> >interface Async1
> > no ip address
> > no ip directed-broadcast
> > encapsulation ppp
> > dialer in-band
> > dialer pool-member 1
> > async dynamic routing
> > async mode dedicated
> > no peer default ip address
> > ppp authentication chap
> >!
> >interface Dialer0
> > ip address 1.1.1.2 255.255.255.0
> > no ip directed-broadcast
> > encapsulation ppp
> > dialer remote-name r3
> > dialer string 1234
> > dialer pool 1
> > dialer-group 1
> > ppp authentication chap
> >!
> >router igrp 1
> > network 172.168.0.0
> >!
> >router bgp 1
> > no synchronization
> > redistribute static
> > neighbor 172.168.200.1 remote-as 1
> > no auto-summary
> >!
> >ip classless
> >ip default-network 137.20.0.0
> >ip route 4.4.0.0 255.255.0.0 Null0
> >ip route 172.168.30.0 255.255.255.0 1.1.1.1 200
> >!
> >dialer-list 1 protocol ip permit
> >!
> >!
> >!
> >ipx router eigrp 1
> > network 200
> >!
> >!
> >ipx router rip
> > no network 200
> >!
> >!
> >!
> >tftp-server flash:c2500-jos56i-l.120-14.bin.Z
> >alias exec i show ip route
> >alias exec c show running-config
> >alias exec b show ip int brief
> >alias exec t config term
> >!
> >line con 0
> > exec-timeout 0 0
> > privilege level 15
> > transport input none
> >line aux 0
> > modem Dialin
> > transport input all
> > speed 38400
> > flowcontrol hardware
> >line vty 0 4
> > exec-timeout 0 0
> > privilege level 15
> > no login
> >!
> >end
> >
> >r4#
> >r4#sho as st
> >Async protocol statistics:
> >
> > Int Local Remote Qd InPack OutPac Inerr
Drops
> >MTU
> >* 1 0.0.0.0 1.1.1.1 0 148 156 2
0
> >1500
> >
> >
> > Rcvd: 148 packets, 11459 bytes
> > 0 format errors, 2 checksum errors, 0 overrun
> > Sent: 156 packets, 11746 bytes, 0 dropped
> >
> >r4#sho dialer int as1
> >
> >As1 - dialer type = IN-BAND ASYNC NO-PARITY
> >Dialer pool 1, priority 0
> >Idle timer (120 secs), Fast idle timer (20 secs)
> >Wait for carrier (30 secs), Re-enable (15 secs)
> >Dialer state is data link layer up
> >Interface bound to profile Di0
> >Time until disconnect 39 secs
> >Current call connected 00:08:03
> >Connected to 1234 (r3)
> >r4#
> >ccielab
>
> VB
> @q#!
>
> xuefengleng
> xuefengleng@163.com
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:36:37 GMT-3