Just an update.... I may have cured the problem (but not found the reason) .i tried removing access-list 104 which made no difference. I managed to speak to our isp while the internet was running slow ( as usually they don't belive you)
we tried some pinging and it was dropping packets, we looked at the multilink ppp, the isp said that it seemed to be connecting ok their end, however we tried taking off multilink ppp and it ran fine, they then suggested i try a config they recommend for cisco routers connecting to themselves, this i've tried and so far it seems to have cured the prob. This is the new config, i'd be very interested if anyone can tell me what the prob was with multilink ppp on the old config.
!
! Last configuration change at 18:50:20 UTC Wed Jan 22 2003
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname hedleysouth
!
enable password xxxx
!
username durhamnorth password 0 xxxx
memory-size iomem 15
ip subnet-zero
!
!
no ip domain-lookup
!
isdn switch-type basic-net3
!
!
!
!
!
!
!
fax interface-type fax-mail
mta receive maximum-recipients 0
!
!
!
!
interface FastEthernet0/0
ip address 172.16.0.105 255.255.0.0
no ip proxy-arp
ip nat inside
duplex auto
speed auto
no cdp enable
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
no cdp enable
!
interface BRI1/0
no ip address
ip nat outside
encapsulation ppp
dialer rotary-group 2
dialer-group 2
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/1
no ip address
shutdown
ntp disable
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/2
no ip address
shutdown
isdn switch-type basic-net3
no cdp enable
!
interface BRI1/3
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
no cdp enable
!
interface Dialer0
ip address 192.168.1.1 255.255.255.0
encapsulation ppp
dialer pool 1
dialer remote-name durhamnorth
dialer string xxxx class hednorth
dialer load-threshold 30 either
dialer-group 5
no cdp enable
ppp authentication chap
ppp multilink
!
interface Dialer2
ip address negotiated
ip nat outside
encapsulation ppp
no ip split-horizon
dialer in-band
dialer string 08451170500
dialer hold-queue 10
dialer load-threshold 5 either
dialer-group 2
no cdp enable
ppp authentication pap callin
ppp pap sent-username xxxx password 0 xxxx
ppp multilink
!
ip nat inside source list 1 interface Dialer2 overload
ip nat inside source static tcp 172.16.0.2 25 x.x.x.x 25 extendable
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer2
ip route 10.0.0.0 255.0.0.0 Null0 100
ip route 192.168.0.0 255.255.255.0 192.168.1.2
no ip http server
no ip pim bidir-enable
!
!
!
map-class dialer hednorth
access-list 1 permit 172.16.0.0 0.0.255.255
access-list 102 permit ip any any time-range reboot
access-list 102 permit ip any any time-range allow
access-list 102 deny ip any any
access-list 104 permit tcp any any established
access-list 104 permit tcp any any eq smtp
access-list 104 permit tcp any any gt 1026
access-list 104 permit udp any any eq domain
access-list 104 permit udp any any gt 1024
access-list 104 permit icmp any any
access-list 104 permit udp any any eq ntp
access-list 104 deny ip any any
dialer-list 2 protocol ip list 102
dialer-list 5 protocol ip list 102
no cdp run
!
!
call rsvp-sync
!
!
mgcp profile default
!
dial-peer cor custom
!
!
!
!
line con 0
line aux 0
line vty 0 4
password xxxx
login
!
ntp clock-period 17180540
ntp server 172.16.0.1
time-range allow
absolute start 00:00 01 March 2002
periodic weekdays 7:00 to 20:00
!
time-range reboot
absolute start 00:00 01 March 1993 end 00:00 31 May 1993
periodic weekend 0:00 to 23:59
periodic weekdays 0:00 to 23:59
!
end
