From: Volkov, Dmitry (IDS Canada) (dmitry_volkov@ca.ml.com)
Date: Mon May 26 2003 - 16:20:04 GMT-3
Jonathan,
It works fine with my Vconsole:
ATI
BBlk=V01.01, Avr=V01.02 (Feb 4 2003), Tms="V01.25 (Mar 24 2003) X4
Revs:52/52/1
1/11", Hdw=V03.00
Maybe You need to upgrade firmware.
However your config (when You added CHAP) looks strange.
Dmitry Volkov
CCIE # 10292
> -----Original Message-----
> From: Jonathan V Hays [mailto:jhays@jtan.com]
> Sent: Monday, May 26, 2003 12:20 PM
> To: ccielab@groupstudy.com
> Subject: multilink and ISDN simulators
>
>
> I can ping across my VConsole ISDN simulator with a simple multilink
> configuration on my lab setup. The second channel (BRI0:2) comes up
> after a few seconds, still pinging fine.
>
> However, with CHAP, the ping brings up the first line but BRI0:2 (the
> second line) will NOT come up. I tried an extended ping and
> large packet
> size (1444 bytes) hoping that would increase the load, but the second
> line still never came up. I would not think this extended ping would
> even be necessary with dialer load-threshold set to 1,
> especially since
> the second line came up very quickly without CHAP.
>
> I've included both configs below. There is nothing configured
> on either
> router except ISDN. Both routers are 2503's running IOS Version
> 12.1(5)T14.
>
> Either I'm missing something or I'm starting to suspect that
> these ISDN
> simulator vendors don't do a very good job programming multilink into
> the simulators. My lab study partner has a TelTone ILS and getting
> multilink to work with the TelTone ISDN simulator is hit or miss -
> sometimes it works, sometimes it doesn't.
>
> Any ideas?
>
> -Jonathan
>
> = = = = =
>
> *** Multilink without CHAP:
>
> R5:
> interface BRI0
> ip address 10.1.1.5 255.0.0.0
> encapsulation ppp
> dialer map ip 10.1.1.6 broadcast 4082222222
> dialer load-threshold 10 either
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 40811111111
> isdn spid2 40811111112
> ppp multilink
> !
> dialer-list 1 protocol ip permit
> !
> R6:
> interface BRI0
> ip address 10.1.1.6 255.0.0.0
> encapsulation ppp
> dialer map ip 10.1.1.5 broadcast 4081111111
> dialer load-threshold 10 either
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 40822222221
> isdn spid2 40822222222
> ppp multilink
> !
> dialer-list 1 protocol ip permit
> = = = = = =
> r6#ping 10.1.1.5
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
> ..!!!
> Success rate is 60 percent (3/5), round-trip min/avg/max = 36/36/36 ms
> r6#
> 01:26:49: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
> 01:26:51: %LINK-3-UPDOWN: Interface Virtual-Access1, changed
> state to up
> 01:26:52: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
> 01:26:52: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to
> 4081111111 r5
> 01:26:52: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1,
> changed state to up
> 01:26:52: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Virtual-Access1, changed state to up
> r6#ping 10.1.1.5
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.1.1.5, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 28/29/32 ms
> r6#
> 01:26:55: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:2,
> changed state to up
> r6#
> 01:26:58: %ISDN-6-CONNECT: Interface BRI0:2 is now connected to
> 4081111111 r5
> r6#sh dialer
>
> BRI0 - dialer type = ISDN
>
> Dial String Successes Failures Last DNIS Last status
> 4081111111 9 0 00:00:14 successful
> 0 incoming call(s) have been screened.
> 0 incoming call(s) rejected for callback.
>
> BRI0:1 - dialer type = ISDN
> Idle timer (120 secs), Fast idle timer (20 secs)
> Wait for carrier (30 secs), Re-enable (15 secs)
> Dialer state is multilink member
> Dial reason: ip (s=10.1.1.6, d=10.1.1.5)
> Connected to 4081111111 (r5)
>
> BRI0:2 - dialer type = ISDN
> Idle timer (120 secs), Fast idle timer (20 secs)
> Wait for carrier (30 secs), Re-enable (15 secs)
> Dialer state is multilink member
> Connected to 4081111111 (r5)
> r6#sh ppp multilink
>
> Virtual-Access1, bundle name is r5
> Dialer interface is BRI0
> 0 lost fragments, 0 reordered, 0 unassigned
> 0 discarded, 0 lost received, 1/255 load
> 0xA received sequence, 0xA sent sequence
> Member links: 2 (max not set, min not set)
> BRI0:1
> BRI0:2
> r6#sh in bri0:1 | include LCP
> LCP Open, multilink Open
> r6#sh in bri0:2 include LCP
> LCP Open, multilink Open
> r6#
> = = = = = =
>
> *** Add CHAP:
>
> R5:
> username r6 password 0 cisco
> !
> interface BRI0
> ip address 10.1.1.5 255.0.0.0
> encapsulation ppp
> dialer map ip 10.1.1.6 name r6 broadcast 4082222222
> dialer load-threshold 1 either
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 40811111111
> isdn spid2 40811111112
> ppp authentication chap
> ppp multilink
> !
> dialer-list 1 protocol ip permit
> !
> username r6 password 0 cisco
> !
> interface BRI0
> ip address 10.1.1.5 255.0.0.0
> encapsulation ppp
> dialer map ip 10.1.1.6 name r6 broadcast 4082222222
> dialer load-threshold 1 outbound
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 40811111111
> isdn spid2 40811111112
> ppp authentication chap
> ppp multilink
> !
> dialer-list 1 protocol ip permit
>
> Only one line up, after 1320 packets, size 1444 bytes:
>
> r4_ts#6
> [Resuming connection 6 to r2503b ... ]
> !!!!!!!.
> Success rate is 99 percent (1320/1321), round-trip min/avg/max =
> 372/373/472 ms
> r6#sh dialer
>
> BRI0 - dialer type = ISDN
>
> Dial String Successes Failures Last DNIS Last status
> 4081111111 2 1 00:09:45 successful
> 0 incoming call(s) have been screened.
> 0 incoming call(s) rejected for callback.
>
> BRI0:1 - dialer type = ISDN
> Idle timer (120 secs), Fast idle timer (20 secs)
> Wait for carrier (30 secs), Re-enable (15 secs)
> Dialer state is multilink member
> Dial reason: ip (s=10.1.1.6, d=10.1.1.5)
> Connected to 4081111111 (r5)
>
> BRI0:2 - dialer type = ISDN
> Idle timer (120 secs), Fast idle timer (20 secs)
> Wait for carrier (30 secs), Re-enable (15 secs)
> Dialer state is idle
> r6#sh ppp multi
>
> Virtual-Access1, bundle name is r5
> Dialer interface is BRI0
> 0 lost fragments, 0 reordered, 0 unassigned
> 0 discarded, 0 lost received, 111/255 load
> 0x0 received sequence, 0x0 sent sequence
> Member links: 1 (max not set, min not set)
> BRI0:1
> r6#sh in bri0:1 | include LCP
> LCP Open, multilink Open
> r6#sh in bri0:2 | include LCP
> LCP Closed, multilink Closed
> r6#
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