11-08-2006 02:08 AM
Hi,
i have to routers a 801 -running 12.3.5f IOS- and a 3640 -running 12.2.28a each with one bri wic.
Once, i have tried to use ppp multilink because the customer wanted 128kbps after a certain threshold and so i configured ppp multilink on BOTH routers in the Dialer interface.
After a week or so, i removed the ppp multilink command from BOTH routers because he didn't want a second call to occur.
After a month, he realised that ppp multilink still works and that the 801 makes a second call to the 3640!!
How is this possible if the command ppp multilink does not exist in either routers?
Thanks
Solved! Go to Solution.
11-08-2006 06:09 AM
Hi ,
coming to the config of dialer interface on remote roueter ,
interface Dialer0
ip unnumbered Ethernet0
no ip directed-broadcast
encapsulation ppp
ip tcp header-compression passive
dialer in-band
dialer idle-timeout 20
dialer map ip 10.7.1.254 name xxx broadcast
dialer hold-queue 15
dialer load-threshold 255 either
!
As you said dialer load-threshold is used to bring up second B channel..
In this you don't want the second B channel to come up , so what is the use of keeping that command under dialer interface. ?
You can remove that command as you don't want second channel to come up.
Am i correct ?
Thanks,
satish
11-08-2006 03:04 AM
Hi ,
Can you paste the config of th router ?
Thanks,
satish
11-08-2006 04:15 AM
here it is satish. Be aware of the comment i put in the dialer interface of the 109 config, which is one of the remote sites:
109#sh run
hostname 109
!
interface Ethernet0
ip address 10.10.9.254 255.255.255.0
ip access-group 100 in
no ip directed-broadcast
no cdp enable
!
interface BRI0
ip unnumbered Ethernet0
no ip directed-broadcast
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface Dialer0
ip unnumbered Ethernet0
no ip directed-broadcast
encapsulation ppp
ip tcp header-compression passive
dialer in-band
dialer idle-timeout 20
dialer map ip 10.7.1.254 name xxx broadcast
dialer hold-queue 15
dialer load-threshold 255 either
!
//I had to use this command to be sure that the second channel
never comes up even if multilink is not configured. If i don't
issue this command, when the traffic reaches the default threshold,
128/255 i think, the second channel calls again.//
!
dialer-group 1
no cdp enable
ppp authentication pap ms-chap chap
!
ip local pool dialin_pool 10.10.9.250 10.10.9.253
no ip http server
ip classless
ip route 10.1.1.254 255.255.255.255 Dialer0
!
end
and the central router:
username 109 password 7
interface BRI1/0
description ISDN BRI CONNECTION -
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface BRI1/1
description ISDN BRI CONNECTION DDR -
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface BRI1/2
description ISDN BRI -DDR
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface BRI1/3
description ISDN BRI -DDR
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface BRI1/4
description ISDN BRI -DDR
ip unnumbered Ethernet0/0
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface BRI1/5
description ISDN BRI -DDR
ip unnumbered Ethernet0/0
ip accounting output-packets
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
interface BRI1/6
description ISDN BRI -DDR
ip unnumbered Ethernet0/0
ip accounting output-packets
encapsulation ppp
ip tcp header-compression passive
dialer rotary-group 0
isdn switch-type basic-net3
isdn tei-negotiation first-call
no cdp enable
!
interface Dialer0
ip unnumbered Ethernet0/0
ip accounting output-packets
encapsulation ppp
ip tcp header-compression passive
no ip mroute-cache
dialer in-band
dialer idle-timeout 30
dialer map ip 10.10.9.254 name 109 broadcast
dialer hold-queue 15
dialer-group 1
no cdp enable
ppp authentication chap
ppp pap refuse
!
ip route 0.0.0.0 0.0.0.0 10.7.1.252
ip route 10.10.9.0 255.255.255.0 10.10.9.254
ip route 10.10.9.254 255.255.255.255 Dialer0
11-08-2006 06:09 AM
Hi ,
coming to the config of dialer interface on remote roueter ,
interface Dialer0
ip unnumbered Ethernet0
no ip directed-broadcast
encapsulation ppp
ip tcp header-compression passive
dialer in-band
dialer idle-timeout 20
dialer map ip 10.7.1.254 name xxx broadcast
dialer hold-queue 15
dialer load-threshold 255 either
!
As you said dialer load-threshold is used to bring up second B channel..
In this you don't want the second B channel to come up , so what is the use of keeping that command under dialer interface. ?
You can remove that command as you don't want second channel to come up.
Am i correct ?
Thanks,
satish
11-08-2006 07:08 AM
In my experience ppp authentication should go on both the BRI and the Dialer interfaces. Try configuring ppp authentication on the BRI interfaces and let us know if the behavior changes.
HTH
Rick
11-08-2006 07:33 AM
Thank you both of you.
I think that the best thing to do is as you said:
remove the load threshold
and use ppp authentication in both physical and dialer interfaces.
11-29-2006 06:09 PM
I think you are right!
Multichannel is working even after you remove the command " ppp multilink" because "dialer load threshold " command itself uses BoD by default. In other words, You don't need to config the command "ppp multilink" if both two routers are cisco's. "dialer load threshold" command is enough for the multilik
11-30-2006 12:28 AM
There is also another solution:
Use dialer max-calls
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