Hi
I have many sites with router 877 and ADSL (pots) links, the properties links are:
128 upload
512 download
Static IP address
The problem is that many sites, the router shows the ATM interface down for one or two minutes and then working properly for hours. I dont know if the operation network of the ISP is normal or i need to modify the router configuration.
I add the router configuration:
interface ATM0
no ip address
ip verify unicast reverse-path
no ip redirects
no ip unreachables
ip accounting access-violations
no atm ilmi-keepalive
dsl operating-mode auto
!
interface ATM0.1 point-to-point
bandwidth 256
ip verify unicast reverse-path
no ip redirects
no ip unreachables
ip accounting access-violations
pvc 8/35
vbr-nrt 128 128
tx-ring-limit 4
service-policy output VoIP
pppoe-client dial-pool-number 1
class-map match-all Media
match access-group name VoIP-Media
class-map match-all Signaling
match access-group name VoIP-Signaling
!
!
policy-map VoIP
class Media
priority 39
class Signaling
bandwidth 8
class class-default
fair-queue
interface Dialer1
description Conexion Internet
ip address x.x.x.x 255.255.255.0
ip access-group Firewall in
ip verify unicast reverse-path
no ip redirects
no ip unreachables
ip accounting access-violations
ip mtu 1492
ip ips IPS out
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp pap sent-username xxxxxxx password 0 xxxxxxxx
crypto map mymap
ip access-list extended VoIP-Media
permit udp host 172.25.54.3 172.25.0.0 0.0.255.255 eq 16384
permit udp host 172.25.54.3 eq 16384 172.25.0.0 0.0.255.255
permit udp host 172.25.54.3 range 16384 32767 172.25.0.0 0.0.255.255
ip access-list extended VoIP-Signaling
permit tcp host 172.25.54.3 host 172.25.18.53 eq 1720
permit tcp host 172.25.54.3 host 172.25.18.53 eq 1721
permit tcp host 172.25.54.3 eq 1720 172.25.0.0 0.0.255.255
permit tcp host 172.25.54.3 eq 1721 172.25.0.0 0.0.255.255
