03-02-2007 12:05 PM - edited 03-09-2019 05:31 PM
Hi,
My home Cisco 806 DSL router seems to have a problem with the auto-negociated
ip address it receive from my ISP.
Though the command 'show int dialer' show
an address of, say 70.1.2.3, the
'show dialer map' command always issue a
64.x.y.z address mapped to dialer 1.
When the DSL modem is closed, this 64.xyz
mapping also disapear. When the DSL modem
is powered back, the same mapping
reappear.
Where is a "no dialer map" could be applied to clear this static "dynamic"
attachement ? ( the show run command do
not display any map of this kind anywhere
on any interfaces of my 806).
03-06-2007 02:43 PM
The dialer map with the 64.x.x.x address is created dynamically and cannot be removed. The 64.x.x.x address represents the next hop address.
Hope this helps. If so, please rate the post.
Brandon
03-06-2007 05:55 PM
thanks Brandon,
My bug is very hard to fix. When I receive
some addresses on Dialer 1, I can access the
Web no problem. When I receive some other
adresses (on the Dialer ip is auto negociated)
there is no way I can access the Web. And
the 'no access' behaviour changes upon the
address I receive. I suspect my ISP DHCP
server giving wrong parameters, but since my debug command works badly or not at all, I
cannot exactly see what are the DHCP Options
received else than the Dialer IP/32 address.
Is there a show command to see these dynamic
parameters (DNS and the like) on the Dialer ?
64.x.x.x = Ok
65.x.x.x = Ok
67.x.x.x = Ok
70.48.x.x = Ok
70.53.x.x = no Web
74.x.x.x = no web
03-06-2007 06:10 PM
You can see the interface address with the "show interface dialer1" command and the next hop address with the "show dialer maps" command. In this scenario, the router is not pulling other options like DNS, etc. I assume your router acts as a DHCP server and hands out addresses and DNS info to the LAN. When you have trouble accessing the internet, can you ping an IP address on the internet? Just wondering if it is a DNS problem.
Brandon
03-06-2007 06:41 PM
The 806 NAT gives the 10.xyz addresses inside.
When I get a "wrong" IP address from the
ISP DHCP server, I cannot ping an external IP
address, only the inside ones.
03-06-2007 06:45 PM
I would recommend checking with your ISP. Could be an issue with mac address association or another issue with their server.
Brandon
03-07-2007 04:22 PM
Indeed...
I would be the third time I try and I have not
found someone at Bell who could cope with
this. The last time I was more than 2 hours
on the phone, the time before a cable guy
test the signal at the entry of my home and
it was 100% OK.
As long as I cannot see the debug info, I am
in some fog ! I think this is the main bug
to resolve, after, I will have an exact idea
of what is happening during the connection.
Thanks again Brandon
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