Re: ADSL connection via RHL 90

[chuck gelm <chuck@gelm.net>]

Comments embedded.
frans toruan wrote:
> # fx > Hi, Frans:
> # fx > 
> # fx > 10.234.16.101	fxrhl90			workstation's LAN interface
> # fx > 10.234.16.99	?			gateway's     LAN interface
> # fx > 202.134.0.155	nsjkt1.telkom.net.id	gateway's     WAN interface
> # fx > ?
> # fx > 202.134.2.5	ns2.telkom.net.id	a DNS server
> 
> Yes, you are right.

? No, I am not right. 202.134.0.155 is an external DNS server and
   not the router's WAN interface IP address.

> 10.234.16.99 is IP number of ADSL router ( = default gateway ) in our LAN
> 202.134.0.155 and 202.134.2.5 are DNS servers of our ISP
> 
> # fx >   I assume that the host's (gateway, that has the DSL modem
> # fx > attached?)
> # fx > interfaces are
> # fx >   10.234.16.99 on the LAN and
> # fx >   202.134.0.155 on its ppp# interface and
> # fx >   that it is routing 10.234.16.0<>0.0.0.0
> # fx >   using a netmask of 255.x.x.0 or similar.
> 
> Yes . . .

? No, 202.134.0.155 is an external DNS server and not the IP address
   of the router's interface.

> # fx > Can you ping the gateway's external interface by IP address?
> # fx > "I can ping to the external IP number of my ISP ( i.e. 202.134.0.155
> # fx > )"
> # fx >   I assume that 202.134.0.155 is the IP address of the gateway's
> # fx >   external interface and the answer is yes.
> 
> You already answered a yes.

? No, I do not know what is the IP address of the router's external
   interface.

> # fx > Can you ping 202.134.2.5 or 203.130.196.6 ?
> # fx >   (ns1.telkom.net.id or ns2.telkom.net.id)
> 
> Yes, to the number of the ISP ( 202.134.2.5 ).
> No, to other numbers ( 203.130.196.6, and other numbers ).
> Also, a big no to other names.

I think that since you can ping your external DNS servers,
your router is routing packets LAN<>WAN.

> # fx > For ping'ing by FQDN you will need 202.134.2.5 (or similar)
> # fx > in /etc/resolv.conf (or RedHat equivilant).
> 
> It's already there ! :
> 	resolv.conf :
> search telkom.net
> nameserver 10.234.16.10
> nameserver 202.134.0.155
> nameserver 202.134.2.5

Try:
ping -c 1 202.134.0.12
ping -c 1 66.94.234.13

Try using only one of these DNSs at a time, then:
ping -c 1 telkom.net.id
ping -c 1 yahoo.com

traceroute 202.134.0.12
traceroute 66.94.234.13
traceroute telkom.net.id
traceroute yahoo.com

> ( note : 10.234.16.10 is my internal DNS server )

Whereas the Draytek router can DNS, using an internal DNS
server inside the LAN wmay slow down (1st time) DNS
queries and increase LAN traffic.

> # fx > Do you have access to 10.234.16.99?

Oh, I see below that it is a hardware box.

> Of course, see above. I can also connect to it.

http://10/234.16.99 ?

> Thank you, anyway. But, I still can't see the world via my RHL90
> ( Btw, my router is Draytek Vigor 2500, is it somehow incompatible with
> Linux ? )

( Why do you ask this, does it work with other operating systems and
   not this RedHat workstation ? )

http://www.draytek.co.uk/products/vigor2500.html

(btw, No. It doesn't know or care what o/s is in use.)

Is DNS enabled on the Draytek router?

Is its web setup interface accessed via http://10.234.16.99:80
  or similar?

HTH, Chuck

> Regards,
> 
> 
> Frans T.



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