I have a Cisco C897VA-W running IOS 15.6(3)M
When I load a config that previously worked on this model under 15.1 the router fails to complete the boot cycle.
I have gradually loaded the config piece by piece and have got to the stage now where it crashes on boot again. No console message is displayed - it just fails to respond. If I then break into the boot sequence and set config register to bypass the configuration it will boot. I can erase the config and reset the config register and it will correctly boot.
The partial config I have that causes this is below. Nothing in the config is rejected when entered and worked under 15.1. I know this isn't a full config. it only fails when booting - if I copy startup-config to running-config after breaking into the boot sequence the router continues to run.
Using 4203 out of 262136 bytes
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! Last configuration change at 07:24:43 GMT Wed Feb 6 2036
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version 15.6
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
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hostname Router
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boot-start-marker
boot-end-marker
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no aaa new-model
ethernet lmi ce
clock timezone GMT 0 0
clock summer-time BST recurring last Sun Mar 2:00 last Sun Oct 3:00
service-module wlan-ap 0 bootimage autonomous
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ip dhcp excluded-address 192.168.200.1 192.168.200.19
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ip dhcp pool p1
import all
network 192.168.200.0 255.255.255.0
dns-server 8.8.8.8 8.8.4.4
domain-name domain.com
default-router 192.168.200.1
lease 5
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!
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ip inspect name DEFAULT100 ftp
ip inspect name DEFAULT100 h323
ip inspect name DEFAULT100 icmp router-traffic
ip inspect name DEFAULT100 netshow
ip inspect name DEFAULT100 rcmd
ip inspect name DEFAULT100 realaudio
ip inspect name DEFAULT100 rtsp
ip inspect name DEFAULT100 esmtp
ip inspect name DEFAULT100 sqlnet
ip inspect name DEFAULT100 streamworks
ip inspect name DEFAULT100 tftp
ip inspect name DEFAULT100 vdolive
ip inspect name DEFAULT100 dns
ip inspect name DEFAULT100 ntp
ip inspect name DEFAULT100 tcp router-traffic
ip inspect name DEFAULT100 udp router-traffic
ip cef
no ipv6 cef
!
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multilink bundle-name authenticated
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license udi pid C897VAW-E-K9 sn xxxxxxxxx
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username admin privilege 15 password 7 xxxxxxxxxxxx
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redundancy
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controller VDSL 0
modem UKfeature
sra
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interface ATM0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
no atm ilmi-keepalive
hold-queue 256 in
!
interface ATM0.1 point-to-point
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface Ethernet0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
shutdown
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interface Ethernet0.101
encapsulation dot1Q 101
pppoe enable group global
pppoe-client dial-pool-number 1
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interface GigabitEthernet0
no ip address
!
interface GigabitEthernet1
no ip address
!
interface GigabitEthernet2
no ip address
!
interface GigabitEthernet3
no ip address
!
interface GigabitEthernet4
no ip address
!
interface GigabitEthernet5
no ip address
!
interface GigabitEthernet6
no ip address
!
interface GigabitEthernet7
no ip address
!
interface GigabitEthernet8
no ip address
shutdown
duplex auto
speed auto
!
interface Wlan-GigabitEthernet8
no ip address
!
interface wlan-ap0
description Embedded Service module interface to manage the embedded AP
ip address 192.168.222.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
!
interface Vlan1
ip address 192.168.200.1 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1452
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interface Dialer0
bandwidth 16384
ip address negotiated
ip access-group firewall in
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1492
ip flow ingress
ip nat outside
ip inspect DEFAULT100 out
ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap callin
ppp chap hostname xxxxxxxxxxxx
ppp chap password 7 xxxxxxxxxxxxxxxx
ppp ipcp dns request accept
ppp ipcp route default
no cdp enable
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ip forward-protocol nd
no ip http server
no ip http secure-server
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ip nat inside source static tcp 192.168.200.5 80 xx.xx.xx.xx 81 route-map no-vpn-nat-RM extendable
ip nat inside source static tcp 192.168.200.6 80 xx.xx.xx.xx 82 route-map no-vpn-nat-RM extendable
ip nat inside source static tcp 192.168.200.6 888 xx.xx.xx.xx 888 route-map no-vpn-nat-RM extendable
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ipv6 ioam timestamp
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control-plane
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mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
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mgcp profile default
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line con 0
no modem enable
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport input all
stopbits 1
line vty 0 4
login
transport input none
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scheduler allocate 20000 1000
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end
