From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Mar 12 2005 - 23:32:12 GMT-3
First off what would the broadcast command under the P2P interface have
anything to do with the PPPoA configuration? This command would only
have effect if the IP address was configured under the subinterface and
not the virtual-template interface. Secondly even if the IP address is
configuration under the P2P interface, would the broadcast keyword be
needed?
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ccie2be
Sent: Saturday, March 12, 2005 3:12 PM
To: Group Study
Subject: Can't ping bcast address
Hi guys,
I don't get this. Maybe someone can fill me in.
There are a couple of strange things happening.
Notice in the debug output below, when I ping the broadcast address, the
debug shows dest address as 255.255.255.255
not 54.8.7.255 which is the address I actually pinged. Also, notice
that
ping's to 54.8.7.254 work fine.
So, I have 2 questions:
Why is the router changing the broadcast address I'm pinging?
And, why isn't the ping to the bcast address working?
Also, notice that the config does include the broadcast keyword which I
so
often forget.
Here's the config:
interface Loopback0
ip address 54.8.7.6 255.255.255.0
!
interface ATM0/0
no ip address
no ip route-cache cef
no atm ilmi-keepalive
!
interface ATM0/0.208 point-to-point
pvc 0/208
broadcast
encapsulation aal5snap
protocol ppp Virtual-Template1
!
interface Virtual-Template1
ip unnumbered Loopback0
ppp chap hostname ROUTER6
ppp chap password 0 CISCO
R6#p 54.8.7.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 54.8.7.254, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
R6#p 54.8.7.255
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 54.8.7.255, timeout is 2 seconds:
.....
*Feb 10 21:27:58.687: IP: s=54.8.7.6 (Loopback0), d=255.255.255.255, len
100, un
routable
*Feb 10 21:27:59.735: IP: s=54.8.7.254 (Virtual-Access1), d=224.0.0.10,
len
60,
unroutable
*Feb 10 21:28:00.687: IP: s=54.8.7.6 (local), d=255.255.255.255
(Loopback0),
len
100, sending broad/multicast
*Feb 10 21:28:00.687: IP: s=54.8.7.6 (Loopback0), d=255.255.255.255, len
100, un
routable
*Feb 10 21:28:02.687: IP: s=54.8.7.6 (local), d=255.255.255.255
(Loopback0),
len
100, sending broad/multicast
*Feb 10 21:28:02.687: IP: s=54.8.7.6 (Loopback0), d=255.255.255.255, len
100, un
routable
*Feb 10 21:28:04.687: IP: s=54.8.7.6 (local), d=255.255.255.255
(Loopback0),
len
100, sending broad/multicast
*Feb 10 21:28:04.687: IP: s=54.8.7.6 (Loopback0), d=255.255.255.255, len
100, un
routable
TIA, Tim
This archive was generated by hypermail 2.1.4 : Sun Apr 03 2005 - 17:56:45 GMT-3