11-05-2007 03:32 AM - edited 03-03-2019 07:24 PM
Hi,
I upgrade the IOS on my cisco 837 router to use the IDS function and after completing machines from the inside can not go to the internet. from the router I can ping out to the internet. can anyone see anything in this config that would be preventing it working?
thanks
version 12.4
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec show-timezone
service timestamps log datetime msec show-timezone
service password-encryption
!
hostname router
!
boot-start-marker
boot system flash c837-k9o3sy6-mz.124-17.bin
boot-end-marker
!
logging buffered 16000 debugging
enable secret xxxxxxxxxx
!
no aaa new-model
clock timezone GMT 0
clock summer-time GMT recurring last Sun Mar 1:00 last Sun Oct 1:00
ip source-route
no ip gratuitous-arps
!
!
!
!
ip cef
no ip domain lookup
ip name-server 159.134.248.17
no ip bootp server
ip inspect max-incomplete low 10
ip inspect max-incomplete high 20
ip inspect one-minute low 10
ip inspect one-minute high 20
ip inspect udp idle-time 15
ip inspect tcp idle-time 1800
ip inspect tcp finwait-time 1
ip inspect tcp synwait-time 10
ip inspect name MYFW udp alert on audit-trail on
ip inspect name MYFW tcp alert on audit-trail on
vpdn enable
!
!
!
username user password xxxxxxxxx
!
!
ip ssh time-out 60
ip ssh authentication-retries 2
!
!
!
!
interface Ethernet0
ip address x.x.x.x(public address) 255.255.255.248
no ip redirects
no ip unreachables
no ip proxy-arp
ip route-cache flow
ip tcp adjust-mss 1452
no cdp enable
hold-queue 100 out
!
interface Ethernet2
no ip address
shutdown
hold-queue 100 out
!
interface ATM0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
ip route-cache flow
atm vc-per-vp 64
no atm ilmi-keepalive
dsl operating-mode auto
hold-queue 224 in
pvc 8/35
encapsulation aal5snap
pppoe-client dial-pool-number 1 dial-on-demand
!
!
interface FastEthernet1
duplex auto
speed auto
!
interface FastEthernet2
duplex auto
speed auto
!
interface FastEthernet3
duplex auto
speed auto
!
interface FastEthernet4
duplex auto
speed auto
!
interface Dialer0
no ip address
no cdp enable
!
interface Dialer1
ip address negotiated
no ip redirects
no ip unreachables
no ip proxy-arp
ip mtu 1492
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 1
dialer idle-timeout 14400
dialer-group 1
no cdp enable
ppp authentication chap callin
ppp chap hostname user
ppp chap password password
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Dialer1
!
no ip http server
no ip http secure-server
!
!
!
ip access-list extended INTERNET-IN
deny ip any any log
access-list 100 permit ip any any
access-list 100 permit tcp host 1.2.3.4 any log
access-list 100 deny ip any any log
dialer-list 1 protocol ip permit
no cdp run
!
!
!
control-plane
!
line con 0
exec-timeout 0 0
login local
no modem enable
transport preferred none
transport output none
stopbits 1
line aux 0
login local
no exec
transport preferred none
transport output none
line vty 0 4
access-class TELNET in
exec-timeout 0 0
login local
length 0
transport preferred none
transport input telnet
transport output none
!
scheduler max-task-time 5000
end
11-05-2007 03:43 AM
hi
can you do a trace and find out where the packets are getting dropped ?
can you also do a extended ping with source ip address as your ethernet ip ?
do try tracing from router as well as from pc.
from router with extended trace with source ip address as your ethernet ip.
regds
11-05-2007 03:49 AM
Hi,
the packets are being dropped on the ethernet interface on the router which connects to the inside hosts.
I can not ping the IP on that interface.
everything was working fine until I performed the upgrade.
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