02-18-2007 02:34 AM - edited 03-03-2019 03:48 PM
Hello
i ahve 2 routers, ROUTER A is connected to the internet through DSL interface, and is connected to a switch through FE0/0 which has the ip address 10.10.10.1 and network: 10.10.10.0/24
ROUTER B , its FE0/0 has the same network 10.10.10.0/24 and ip address 10.10.10.2 and its connected to the switch, and FE0/1 has a diffrent network 192.168.0.0 255.255.0.0 and ip address 192.168.100.1, now i am connecting my computer DIRECTLY to FE0/1 on ROUTER B, i am able to get DHCP IP Address, but not able to ping ROUTER A from my computer nor see the internet.
ROUTER B can ping ROUTER A and see the internet.
i am attaching the config on ROUTER B, if someone can help:
RouterB#sh run
Building configuration...
Current configuration : 1015 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
enable password mans321
!
no aaa new-model
!
!
ip cef
ip name-server 10.10.10.1
no ip dhcp use vrf connected
!
ip dhcp pool ADSL
network 192.168.0.0 255.255.0.0
dns-server 10.10.10.1
default-router 10.10.10.1
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
ip address 10.10.10.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.100.1 255.255.0.0
duplex auto
speed auto
!
no ip http server
!
ip route 0.0.0.0 0.0.0.0 10.10.10.1
!
!
access-list 13 permit 192.168.0.0 0.0.255.255
access-list 101 permit ip 192.168.0.0 0.0.255.255 any
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
line con 0
line 33 48
line 65 80
line 97 112
line 129 144
line aux 0
line vty 0 4
password XXXX
login
!
!
end
02-18-2007 02:48 AM
Hi
Is there any route in router A to point to 192.168.0.0/16 ?
It seems that there is no route to this network in router A like this :
ip route 192.168.0.0 255.255.0.0 10.10.10.2
also after you put this route in router A maybe you need to Nat the addresses since you use 192.168.0.0 network , B router sees the internet because it uses its Fe0/0 ip address.
Best Regards Bahman Mozaffari.
Please Rate if it helpful.
02-18-2007 09:56 AM
no i didnt specify any route in router A, do i have to do that? isnt there a way do do that from router B?
i will try this and will let you know.
thanks.
02-18-2007 03:27 AM
Hi
I think you should change the default-router from 10.10.10.1 to 192.168.100.1 under your DHCP configuration on RouterB. Your PC will have a default gateway of 10.10.10.1 at the moment but it is on the 192.168.0.0/16 network so it won't know how to get to 10.10.10.1.
HTH
Jon
02-18-2007 10:00 PM
hello
i did change the default-route to 192.168.100.1, but nothing changed, i still cant ping the gateway nor get to the internet.
any other suggestions?
thanks
02-18-2007 10:09 PM
Hi,
The "show run" above is from your router B, therefore the default gateway is correct "ip route 0.0.0.0 0.0.0.0 10.10.10.1".
Questions is;
- Does Router A has a route to 192.168.0.0/16 which is "ip route 192.168.0.0 255.255.0.0 10.10.10.2?
- Does Router A has NAT Pool that includes 192.168.0.0/16?
BTW, does your routers has a statement "ip classless" ?
Can you post the Router A config?
The reason Router B can ping Router A and internet is because it has an interface in the network 10.10.10.0/24 and using it to ping Router A and internet
02-18-2007 10:31 PM
no i didnt have any of these,
here however the conf on ROUTER A:
note gig0/0 is connected to the switch
gig0/1 is not connected to the switch.
Current configuration : 25200 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname ROUTERA
!
boot-start-marker
boot-end-marker
!
logging buffered 4096 debugging
no logging console
enable secret 5 $1$b6YW$40H5XRga4vamKku23nRSu1
!
aaa new-model
!
!
aaa authentication login default local group radius
aaa authentication enable default enable
aaa authentication ppp default local group radius
aaa authorization exec default local group radius
aaa authorization network default local group radius
!
aaa session-id common
!
resource policy
!
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
ip domain name xx.xx.xx.xx
ip name-server xx.xx.xx.xx
vpdn enable
!
!
username xxxxxx password 0 xxxxx
!
interface GigabitEthernet0/0
description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/0$
ip address 10.10.10.1 255.255.255.0 secondary
ip address xxx.xxx.111.177 255.255.255.248
ip nat inside
ip tcp adjust-mss 1452
load-interval 30
duplex auto
speed auto
media-type rj45
negotiation auto
!
interface GigabitEthernet0/1
ip address 192.168.0.1 255.255.0.0
ip nat inside
ip tcp adjust-mss 1452
duplex auto
speed auto
media-type rj45
negotiation auto
!
!
interface ATM0/1/0
no ip address
no ip mroute-cache
no atm ilmi-keepalive
dsl operating-mode auto
hold-queue 224 in
pvc 0/35
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
!
interface Dialer1
mtu 1482
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp chap refuse
ppp pap sent-username xxxxxxxxx password 0 xxxxxxxx
ppp multilink
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
!
ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat pool Internet xxx.84.111.181 xxx.84.111.182 netmask 255.255.255.248
ip nat pool DSL xxx.xxx.111.173 xxx.xxx.111.174 netmask 255.255.255.252
!
no logging trap
access-list 10 permit 10.10.10.9
access-list 11 permit 10.10.10.0 0.0.0.255
access-list 12 permit 192.168.0.0 0.0.255.255
access-list 23 permit 10.10.10.0 0.0.0.7
access-list 101 permit ip 10.10.10.0 0.0.0.255 any
access-list 101 permit ip 192.168.0.0 0.0.255.255 any
access-list 149 permit ip any any log
snmp-server community commaccess RO 10
snmp-server community CUS123 RO
!
line con 0
stopbits 1
line aux 0
stopbits 1
line vty 0 4
privilege level 15
transport input telnet
line vty 5 15
privilege level 15
transport input telnet
!
no scheduler allocate
!
end
02-18-2007 11:12 PM
Your RotuerB should have the following;
!
ip subnet-zero
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.10.1
!
Your RouterA should have the following;
!
ip subnet-zero
!
ip classless
ip route 192.168.0.0 255.255.0.0 10.10.10.2
!
02-18-2007 11:25 PM
May I ask you a question? What is this?
ip nat pool Internet xxx.84.111.181 xxx.84.111.182 netmask 255.255.255.248
ip nat pool DSL xxx.xxx.111.173 xxx.xxx.111.174 netmask 255.255.255.252
MY NATing seems to be rusty, as I can't figure out the use of this from your configuration. Does your internet provider give you Public IP Address subnet to NAT to your Private IP Addresses?
02-18-2007 11:35 PM
hi
ip nat pool Internet xxx.84.111.181 xxx.84.111.182 netmask 255.255.255.248 is for natting my local IPs to the internet.
the second one: ip nat pool DSL xxx.xxx.111.173 xxx.xxx.111.174 netmask 255.255.255.252 is not yet finished, but i am working with my ISP to setup EIGRP because i will have multiple DSL lines connected.
as i said, the ip route worked, but the internet is slow, and some other applications other than HTTP is not working, like outlook, messenger.
any idea what happened?
02-18-2007 11:52 PM
Ok, to make sure you got everything, here are the configuration suggestions (don't miss any of the lines);
1. Routing
Your RouterB should have the following;
!
ip subnet-zero
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.10.1
!
Your RouterA should have the following;
!
ip subnet-zero
!
ip classless
ip route 192.168.0.0 255.255.0.0 10.10.10.2
!
2. NATing
Your RouterA should have the following;
!
interface Dialer1
mtu 1492 << 1492 not 1482
ip address negotiated
ip nat outside
encapsulation ppp
dialer pool 1
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp chap refuse
ppp pap sent-username xxxxxxxxx password 0 xxxxxxxx
ppp multilink
!
ip nat pool Internet xxx.84.111.181 xxx.84.111.182 netmask 255.255.255.248
ip nat inside source list 11 pool Internet
!
access-list 11 permit 10.10.10.0 0.0.0.255
access-list 11 permit 192.168.0.0 0.0.255.255
!
dialer-list 1 protocol ip permit
02-18-2007 11:35 PM
See above reply
02-18-2007 10:54 PM
ok, i did add ip route 192.168.0.0 255.255.0.0 10.10.10.2 and i was able to ping Router A, i am able to get to the internet but it seems much slower than if i am directly connected, how can i do the natting and on which router?
thanks.
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