Encapsulation failed on 1721
- From: Fottach <fottach_news@xxxxxxx>
- Date: Tue, 30 May 2006 14:27:57 +0200
First, sorry for the long post but I tried to present all needed
information at once.
I have a problem with configuration of Cisco 1721 router.
I just cannot make him to connect it to remote site on BRI interface
via Dialer.
This group seems to be my last resort, because I tried all options I
could think of.
Final configuration should include 7 Dialers over BRI and one via AUX,
but for explanation of a problem I made a two sample configurations -
one without Dialers, which works, and other with Dialers - that does
not work.
First, simple configuration which works:
<========= This configuration works, but without Dialer
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname c1721
!
enable secret 5 $1$kNa.$P1DUPowaGURYvbKpT.app/
!
username remotesite password 7 000055511114444FFFF
ip subnet-zero
!
isdn switch-type basic-net3
!
interface BRI0
ip address 192.168.201.2 255.255.255.0
ip directed-broadcast
encapsulation ppp
dialer idle-timeout 30
dialer string 0015551555
dialer-group 1
isdn switch-type basic-net3
ppp authentication chap
no shut
!
interface FastEthernet0
ip address 192.168.50.100 255.255.255.0
speed auto
full-duplex
no shut
!
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0
ip route 192.168.0.0 255.255.255.0 BRI0
no ip http server
!
!
access-list 1 permit 192.168.50.0 0.0.0.255
dialer-list 1 protocol ip permit
!
line con 0
speed 19200
line aux 0
line vty 0 4
===========================================>
And now configuration that does not work
<========= This configuration fails
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname c1721
!
enable secret 5 $1$kNa.$P1DUPowaGURYvbKpT.app/
!
username remotesite password 7 000055511114444FFFF
ip subnet-zero
!
isdn switch-type basic-net3
!
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
ppp authentication chap
no shut
!
interface FastEthernet0
ip address 192.168.50.100 255.255.255.0
speed auto
full-duplex
no shut
!
interface Dialer1
description Connected to RemoteSite
ip address 192.168.201.2 255.255.255.0
encapsulation ppp
dialer pool 1
dialer remote-name remotesite
dialer idle-timeout 30
dialer string 0015551555
dialer hold-queue 10
dialer-group 1
no cdp enable
ppp authentication chap
!
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0
ip route 192.168.0.0 255.255.255.0 192.168.201.1
no ip http server
!
!
access-list 101 permit ip any any
dialer-list 1 protocol ip permit
!
line con 0
speed 19200
line aux 0
line vty 0 4 ===========================================>
When I ping RemoteSite I got following output:
c1721#deb ip pac
IP packet debugging is on
c1721#deb isdn ev
ISDN events debugging is on
c1721#deb isdn q921
ISDN Q921 packets debugging is on
c1721#deb isdn q931
ISDN Q931 packets debugging is on
c1721#
00:14:57: ISDN BR0: TX -> RRp sapi=0 tei=64 nr=0
00:14:57: ISDN BR0: RX <- RRf sapi=0 tei=64 nr=0
c1721#
c1721#
c1721#ping 192.168.0.1
00:15:07: ISDN BR0: TX -> RRp sapi=0 tei=64 nr=0
00:15:07: ISDN BR0: RX <- RRf sapi=0 tei=64 nr=0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.1, timeout is 2 seconds:
00:15:10: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, sending
00:15:10: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, encapsulation failed.
00:15:12: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, sending
00:15:12: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, encapsulation failed.
00:15:14: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, sending
00:15:14: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, encapsulation failed.
00:15:16: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, sending
00:15:16: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, encapsulation failed
00:15:17: ISDN BR0: TX -> RRp sapi=0 tei=64 nr=0
00:15:17: ISDN BR0: RX <- RRf sapi=0 tei=64 nr=0.
00:15:18: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, sending
00:15:18: IP: s=192.168.201.2 (local), d=192.168.0.1 (Dialer1), len
100, encapsulation failed.
Success rate is 0 percent (0/5)
c1721#
00:15:27: ISDN BR0: TX -> RRp sapi=0 tei=64 nr=0
00:15:27: ISDN BR0: RX <- RRf sapi=0 tei=64 nr=0
00:15:37: ISDN BR0: TX -> RRp sapi=0 tei=64 nr=0
00:15:37: ISDN BR0: RX <- RRf sapi=0 tei=64 nr=0
TIA,
Boris
.
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