09-10-2008 01:00 AM - edited 03-03-2019 11:28 PM
Hello everybody
could any one help me in this please.
iam having cisco 1841 router and i want to configure this router for internet connection.
below are the configuration please let me know what is wrong, thank you.
Solved! Go to Solution.
10-09-2008 04:03 AM
10-09-2008 05:37 AM
Hello Ala,
your config looks like fine.
the command
dialer-list 1 protocol ip permit
is still present in your config ?
post the output of the same debug commands and follow the same procedure.
There are chances that PPP authentication still fails
And/OR check with provider your authentication parameters
Hope to help
Giuseppe
10-18-2008 06:20 AM
Hello Giusepee
iwant to thank you,because you are the only one who is dealing in my case.
so could possibly please examine the debug out put and tell me what it might be wrong
*Oct 18 12:56:56.726: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 12:57:56.734: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 12:58:56.742: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 12:59:56.750: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:00:56.758: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:01:56.766: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:02:56.774: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:03:56.782: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:04:56.790: Vi1 PPP: Outbound cdp packet dropped
*Oct 18 13:05:56.798: Vi1 PPP: Outbound cdp packet dropped
thank you
Alaeldien
10-18-2008 08:18 AM
Hello Ala,
>> because you are the only one who is dealing in my case.
This just an accident: however when a thread has many posts this can happen.
this specific error is not a real issue it just says it is dropping CDP packets outbound.
CDP is a Cisco protocol useful in lan environment to detect the neighbor port id.
Here it is not a problem.
on intertace dialer1
int vi1
no cdp enable
there is no use for CDP on your WAN link.
Are you still in trouble ?
I've given a look to previous posts in your last config I didn't see the command to define interesting traffic
dialer-list 1 protocol ip permit
this is needed because using the dialer you are doing a logical DDR over the PPPoE otherwise the session will be closed after idle-time expiration.
I hope this is present otherwise it has to be added.
Now, if PPP authentication is OK as seen with debug ppp negotiation and debug ppp authentication the further steps are PPPoE specific:
sh pppoe session all
example:
r3725#sh pppoe session all
Total PPPoE sessions 2
session id: 82
local MAC address: 000f.349c.eae1, remote MAC address: 000f.f7eb.5bb0
virtual access interface: Vi3, outgoing interface: Fa1/0
10026 packets sent, 10038 received
426176 bytes sent, 420238 received
other useful debug for PPPoE is
debug pppoe events
And:
r3725#sh ip int dialer 1
Dialer1 is up, line protocol is up
Internet address is 101.101.101.2/32
Broadcast address is 255.255.255.255
>> Address determined by IPCP
This happens in a working PPPoE session.
link to doc
Hope to help
Giuseppe
10-19-2008 10:07 PM
Hello sir
i've issue the commands
debug ppp neg
and
debug ppp auth
after enabling the terminal monitor,
but i can't see the out put.
even i issue the command
*show vpdn session
and the output showing the State is NA
could you tell the possibility of NA status.
and let me tell you every thing seem to work fine
*dialer interface getting ip address through IPCP
but when iam pinging to suppost http://www.cisco.com
the out put come showing that unrecognized host or name or protocol is not running
....
could you advice please by examining the attached configuration file and see what should be removed and what to add
lot of thanks
Alaeldien
*******************************************
the most important thing is that the ISP *
providing us with the value of * * PVC(VPI/VCI) that is 0/50, *
where it should be *
included globally or in a diler since *
the *dialer can not accept such type *
of command unless we add mmi. *
*******************************************
10-19-2008 11:29 PM
Hello Ala,
PPPoE session is fine:
Encapsulation PPP, LCP Open
Open: IPCP
PPPoE vaccess, cloned from Dialer1
>> but when iam pinging to suppost http://www.cisco.com
the out put come showing that unrecognized host or name or protocol is not running
this is a DNS problem you need to configure on PCs a DNS server that is in your provider network.
give a look at:
http://www.tech-faq.com/public-dns-servers.shtml
Ask your provider what DNS server to use.
For configuring the DNS server on the router
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a00800c525f.shtml
3) providing us with the value of * * PVC(VPI/VCI) that is 0/50, *
This is the ATM PVC to be used if your WAN interface was directly the ADSL link: in your case this info is already configured on the ADSL modem so don't worry about this it is right that is not used in your router in this scenario.
I would remove the mmi config I don't think relates to your scenario.
Hope to help
Giuseppe
10-20-2008 08:51 PM
Hellow
i've configured the router with DNS of the ISP, the problem is still exist, and i can not see the out put of the debug while its on.
my scenario is like this:
the pppoe session has been established
but it seem to be problem with NAT
the LAN interface nated as inside
the WAN interface nated out side
the dialer interface also out side
so how it could be wrong. please advice.
thanks
Alaeldien
10-21-2008 02:06 AM
hellow sir
idid some change and here is the issue
***************************************
falcon-wimax#ping 64.233.183.104
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 64.233.183.104, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 264/271/280 ms
falcon-wimax#ping http://www.google.com
Translating "www.google.com"...domain server (194.170.1.7)
% Unrecognized host or address, or protocol not running.
it's a DNS issue can you deal with it
thanks
Alaeldien
10-21-2008 03:31 AM
Hello Ala,
the router can solve
try
ping www.google.com
the URL http://www.google.com is for use on a browser on a PC not sure a router can solve it.
you need the presence of the command
ip domain-lookup
ip name-server 194.170.1.7
I cannot test this in production routers
Hope to help
Giuseppe
10-21-2008 04:48 AM
Hello Ala,
I tested in a branch router with IPSec and without NAT I have the same problems you have showed me even using www.google.com
I would suggest you to use a PC connected on the internal LAN and to try to surf with it
Hope to help
Giuseppe
10-22-2008 08:51 PM
hello sir
we are done. it's all about wrong parameters from ISP.so good job has been done by you thanks alot
10-22-2008 11:18 PM
Hello Ala,
I'm happy that now everything works well with this PPPoE session.
Best Regards
Giuseppe
p.s. : you can address me as Giuseppe that is my name it is a normal practice here in the forums.
I've realized only now that you kept to use sir: very polite of you.
10-21-2008 03:22 AM
Hello Ala,
about NAT I think it should be configured only on LAN interface and dialer not the WAN interface because it has no L3 config.
Hope to help
Giuseppe
10-21-2008 10:18 PM
hello sir
i reomoved the NAT declaration in WAN interface, but it's still, i can ping from the router to any ip address, not by host name, none of my PCs in LAN can ping either by name or host name.
??????
please take last look into the config file.
ya one more thing i can not see the out put of debug even after enabling the terminal monitor
advice please
Alaeldien
10-22-2008 12:24 AM
Hellow sir
finally ican said that we almost did it
the router is working fine i can ping by both host name or ip address, but still ihave problem ???
i can not ping any ip address or host name from any pc in the LAN
and i think some how it's related to the ACL
so i used class c ip address
192.168.1.1 255.255.255.0
and i implement ACL as follows
access-list 100 permit ip 192.168.1.0 0.255.255.255 any
is it ok? if yes what might be wrong/
thank you.
Alaeldien
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