From: Jonathan V Hays (jhays@jtan.com)
Date: Sun Sep 21 2003 - 10:33:59 GMT-3
In my experience neither PPP encapsulation nor a host route is needed to
ping. See below:
R1a#sh ip route | include 172.16.122.
C 172.16.122.0/24 is directly connected, BRI1/0
R1a#sh run int bri1/0
Building configuration...
Current configuration : 226 bytes
!
interface BRI1/0
ip address 172.16.122.1 255.255.255.0
encapsulation hdlc
dialer map ip 172.16.122.2 name R2 broadcast 8358662
dialer-group 1
isdn switch-type basic-ni
isdn spid1 0835866101
isdn spid2 0835866301
end
R1a#ping 172.16.122.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.122.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/33/36 ms
R1a#
HTH,
Jonathan
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Larry Roberts
Sent: Sunday, September 21, 2003 3:52 AM
To: Volodymyr Levytskyy; ccielab@groupstudy.com
Subject: Re: isdn and authentication
More than likely it is whenever you enable PPP you can ping the
neighbor,
not authentication. When you enable PPP encapsulation the router
installs a
/32 host route for the neighbor on the other side of the BRI link. It is
the
/32 route that enables you to ping the directly connected neighbor and
yourself.
HTH,
Larry Roberts
CCIE #7886 (R&S / Security)
----- Original Message -----
From: "Volodymyr Levytskyy" <volodymyr.levytskyy@3web.net>
To: <ccielab@groupstudy.com>
Sent: Sunday, September 21, 2003 1:10 AM
Subject: isdn and authentication
> I am wondering why if is connected BRI to BRI without authentication
there
is
> no ping on own interface or neighbor's, only when I enable
authentication
I
> can ping these interfaces. Encapsulation ppp.
>
> Thanks
> Volodymyr
>
> ***Get your CCIE and a FREE vacation: Shop.GroupStudy.com***
>
This archive was generated by hypermail 2.1.4 : Wed Oct 01 2003 - 07:24:33 GMT-3