2 PPPoE sessions on Cisco 880 possible?

Question

Cisco

Gentlemen, I'm dumb.

There are 880 s

Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M8, RELEASE SOFTWARE (fc1)

Two DSL bridges are connected to it via a switch.

Through the first one everything works fine:

officegw#sh run int fa4.180
interface FastEthernet4.180
description Telefonica WAN interface 1
encapsulation dot1Q 180
pppoe-client dial-pool-number 1
end

officegw#sh run int dial 0
interface Dialer0
mtu 1480
ip address negotiated
no ip unreachables
ip nat outside
ip virtual-reassembly
encapsulation ppp
ip tcp adjust-mss 1440
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxxxxxxx
ppp chap password 7 XXXXXXXXXXXXXX
end

We recently connected a second DSL, set everything up in the same way:

officegw#sh run int fa 4.172
interface FastEthernet4.172
description Telefonica WAN interface 2
encapsulation dot1Q 172
ip address 192.168.2.10 255.255.255.0 ! Проверял доступность модема чтоб исключить косяк с vlan
pppoe-client dial-pool-number 2
end

officegw#sh run int dial 1
interface Dialer1
description Telefonica VDSL
mtu 1480
ip address negotiated
no ip unreachables
ip nat outside
ip virtual-reassembly
encapsulation ppp
ip tcp adjust-mss 1440
dialer pool 2
dialer-group 2
ppp authentication chap callin
ppp chap hostname XXXXXXXXX
ppp chap password 7 XXXXXXXXXXXXXXXX
!
end

And here something that I don’t understand begins: the second PPPoE (which is Dial1) rises with a very large and not very predictable delay (from half an hour to several hours). We tried to connect the laptop to the same access-port, it rises without problems.

What am I doing wrong?

Answer 1

as it turned out, from one poppy address, two sessions cannot be raised

Answer 2

Debug ppp negotiation.