05-13-2002 11:27 PM - edited 03-01-2019 09:43 PM
I can ping the router from inside of my LAN or from the internet (outside)
From the router I can ping all the machines on my LAN.
From the 1720, I cannot ping my ISP's gateway or anything on the internet.
pingability
1720 -> LAN Yes
LAN -> 1720 Yes
Internet -> 1720 Yes
1720 -> internet NO
Here's my configuration, any ideas?
for serial0 and the ethernet i have:
nterface FastEthernet 0
no shutdown
description connected to EthernetLAN
ip address 192.168.1.1 255.255.255.0
ip nat inside
keepalive 10
!
interface Serial 0
no shutdown
description connected to Internet
service-module t1 clock source line
service-module t1 data-coding normal
service-module t1 remote-loopback full
service-module t1 framing esf
service-module t1 linecode b8zs
service-module t1 lbo none
service-module t1 remote-alarm-enable
ip address 206.119.25.250 255.255.255.252
ip nat outside
encapsulation hdlc
!
------------------ show running-config ------------------
Building configuration...
Current configuration : 1295 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname cisco
!
enable secret 5
!
memory-size iomem 15
ip subnet-zero
ip host-routing
ip name-server 192.168.1.250
ip dhcp excluded-address 192.168.1.150 192.168.1.180
!
ip dhcp pool 1
network 192.168.1.0 255.255.255.0
domain-name heretic.ws
default-router 192.168.1.1
dns-server 4.2.2.1 4.2.2.2 4.2.2.3
!
!
!
!
interface FastEthernet0
description connected to EthernetLAN
ip address 192.168.1.1 255.255.255.0
ip nat inside
speed auto
half-duplex
!
interface Serial0
description connected to Internet
ip address 206.119.25.250 255.255.255.252
ip nat outside
service-module t1 remote-alarm-enable
!
router rip
version 2
passive-interface Serial0
network 192.168.1.0
no auto-summary
!
ip default-gateway 206.119.25.249
ip nat inside source list 1 interface Serial0 overload
ip classless
ip route profile
ip route 0.0.0.0 0.0.0.0 Serial0
ip route 192.168.1.0 255.255.255.0 FastEthernet0 permanent
ip http server
!
access-list 1 permit 192.168.1.0 0.0.0.255
snmp-server community RO
!
line con 0
exec-timeout 0 0
password
login
line aux 0
line vty 0 4
password
login
!
no scheduler allocate
end
05-14-2002 03:55 AM
Hi,
Are you using IOS version 12.2.2XK? If so you may find that default routes pointing to an interface don't work!!
i.e. ip route 0.0.0.0 0.0.0.0 Serial0
If so, upgrade the IOS and have another go
This may not be the prob of course but worth mentioning.
Also, when you run a trace from the router to a website, where does it stop?
Ali
05-14-2002 11:55 AM
Using IOS Version 12.2(6).
Trace hits the router but does not report back the IP address of my ISP's gateway. So it looks like it hits the 1720 and then stops.
In the meantime, I'll trying upgrading the IOS.
05-15-2002 01:54 AM
OK,
run these:
debug ip icmp
debug ip packet detail
try ping/trace again and see what results you get
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