Ping failure

Question

Hi All,
I have a an issue which i think/hope is an easy one but i cannot see it. hopefully i am missing something obvious:
A device (music player: 10.1.47.251) in a remote site is not responding to ping from our head office.
the device responds ok from the router and from within the remote lan
if i try and ping from the local router to the device and set the source as Dialer0 (internet) the ping fails
If i try and ping the device from head office it fails
If i try and ping 10.1.47.250 (a pc in same remote lan connected to same switch) from head office it responds ok
I have connected the music device directly to the router and to the switch but behaviour is the same no matter which device it is connected to.
Head office lan 192.168.100/24
remote site lan 10.1.47.0/24
head office peer 88.88.88.88 (not actual)
remote site peer 99.99.99.57 (not actual)
router config with certain info redacted with ??????? and changed
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname ???????????
boot-start-marker
boot-end-marker
logging message-counter syslog
logging buffered 10000
no aaa new-model
dot11 syslog
ip source-route
ip dhcp excluded-address 10.1.47.1 10.1.47.10
ip dhcp excluded-address 10.1.47.50 10.1.47.254
ip dhcp pool Music
   network 10.1.47.0 255.255.255.0
   default-router 10.1.47.254
   dns-server 192.168.101.100
ip cef
no ip domain lookup
ip domain name ?????????????
username raadmin privilege 15 password 7 ???????????????????
crypto isakmp policy 1
encr 3des
hash md5
authentication pre-share
group 2
crypto isakmp key ?????? address 88.88.88.88
crypto isakmp key ?????? address ??????????
crypto ipsec security-association lifetime seconds 28800
crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac
crypto map ????????? ipsec-isakmp
description Head Office VPN
set peer 88.88.88.88 (not actual ip)
set transform-set ESP-3DES-MD5
match address 102
crypto map ?????? ipsec-isakmp
description ??????
set peer ???????
set transform-set ESP-3DES-MD5
match address 103
archive
log config
  hidekeys
ip tftp source-interface Vlan1
interface ATM0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
no atm ilmi-keepalive
interface ATM0.1 point-to-point
pvc 8/35
  pppoe-client dial-pool-number 1
interface FastEthernet0
interface FastEthernet1
interface FastEthernet2
interface FastEthernet3
interface Vlan1
ip address 10.1.47.254 255.255.255.0
ip nat inside
ip virtual-reassembly
interface Dialer0
description ADSL line number: ??????????
ip address 99.99.99.57 255.255.255.248 (not actual ip)
ip access-group 100 in
no ip redirects
no ip unreachables
no ip proxy-arp
ip nat outside
ip virtual-reassembly
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname ??????????????????
ppp chap password 7 ???????????????????
crypto map ??????????????????
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer0
no ip http server
no ip http secure-server
ip nat inside source route-map Natted interface Dialer0 overload
logging history critical
access-list 100 remark Dialer0 Access List
access-list 100 permit tcp any host ?????????? established
access-list 100 permit tcp host ??????????? host 99.99.99.57 eq 22
access-list 100 permit tcp host ??????? host 99.99.99.57 eq 22
access-list 100 permit icmp host ????? host 99.99.99.57
access-list 100 permit icmp host ??????? host 99.99.99.57
access-list 100 permit udp host ????????? host 99.99.99.57 eq isakmp
access-list 100 permit esp host ???????? host 99.99.99.57
access-list 100 permit icmp host 88.88.88.88 host 99.99.99.57
access-list 100 permit tcp host 88.88.88.88 host 99.99.99.57 eq 22
access-list 100 permit udp host 88.88.88.88 host 99.99.99.57 eq isakmp
access-list 100 permit esp host 88.88.88.88 host 99.99.99.57
access-list 100 deny   icmp any any timestamp-reply
access-list 100 deny   icmp any any timestamp-request
access-list 100 deny   ip any any log
access-list 101 deny   ip any host ?????????????
access-list 101 deny   ip any host ???????????
access-list 101 deny   ip 10.1.47.0 0.0.0.255 192.168.0.0 0.0.255.255
access-list 101 deny   ip 10.1.47.0 0.0.0.255 10.0.0.0 0.255.255.255
access-list 101 permit ip any host ???????????
access-list 101 permit ip any host ?????????????????
access-list 101 permit ip any host ?????????????
access-list 101 permit ip any host???????????????
access-list 101 permit ip any host ???????????????
access-list 101 permit ip any host ???????????????
access-list 101 permit ip any host ?????????????????
access-list 101 permit ip any host ??????????????
access-list 101 permit ip any host ??????????????
access-list 101 permit ip any host ????????????????
access-list 101 permit ip any any
access-list 101 deny   ip any any
access-list 102 permit ip 10.1.47.0 0.0.0.255 192.168.96.0 0.0.31.255
access-list 102 permit ip 10.1.47.0 0.0.0.255 10.0.0.0 0.255.255.255
access-list 103 permit ip 10.1.47.0 0.0.0.255 192.168.51.48 0.0.0.15
dialer-list 1 protocol ip permit
route-map Natted permit 1
match ip address 101
snmp-server community ???????????????? RO
control-plane
^C
line con 0
login local
no modem enable
line aux 0
line vty 0 4
login local
transport input ssh
scheduler max-task-time 5000
end

Answer 1

Hi Jawad,
Thanks for your response. Unfourtunately i do not think this is the issue.
Access-list 103 is an acl for a VPN to a third party support partner. It is not related to Head Office traffic.
Access-list 102 is the access list for the VPN from Head Office to remote site and is the acl of interest here.
Access-list 102 is configured correctly and this is borne out by the fact i can ping 10.1.47.250 (but not 251)
thanks again
Brendan