I have the following:
cisco 3640, fe-pri 1fe-2ce1, mica digital modems
IOS 12.2(2)XB7
This ios version works ok for our voip. With other (not tried all versions) router crashes if using
"voice service voip
h323
session transport tcp calls-per-connection 1"
The problem with dialin:
users can't get ip address from ip pool. Connection ok, authentication ok, but ppp doesn't provide peer ip address in IPCP and after 20-30 seconds user disconnects.
After reloading all works for some time, but:
if no users connected, ISDN call can connect and negotiate ip address
if 1 async user connected, ISDN connects but can't negotiate ip address
if more than 1 async user connected, ISDN can connect
Very strange...
Here is debug outputs:
# deb ppp neg
May 8 11:57:21.895 MSD: Se1/0:0 CCP: Packet buffered while building Virtual
+Profile interface
May 8 11:57:21.899 MSD: Se1/0:0 IPCP: Packet buffered while building Virtual
+Profile interface
May 8 11:57:25.899 MSD: Se1/0:0 IPCP: Packet buffered while building Virtual
+Profile interface
May 8 11:57:25.903 MSD: Se1/0:0 CCP: Packet buffered while building Virtual
+Profile interface
Virtual Profile debugging is on
Virtual Profile packet debugging is on
Virtual Profile subblock debugging is on
Virtual Template debugging is on
May 8 12:05:52.981 MSD: %LINK-3-UPDOWN: Interface Serial1/0:0, changed state
+to up
May 8 12:05:56.569 MSD: Se1/0:0 VP: Request to create VA, clone VT 1, and
+clone AAA
May 8 12:05:56.569 MSD: VTEMPLATE: Sending vaccess request, id 0x62FA4C74
May 8 12:05:56.569 MSD: VTEMPLATE: Processing vaccess requests, 1 outstanding> May 8 12:05:56.569 MSD: Vt1 VTEMPLATE: (Pre)cloning vaccess from recycle
+queue
May 8 12:05:56.573 MSD: Vi5 VTEMPLATE: Has a new cloneblk vtemplate, now it
+has vtemplate
May 8 12:05:56.573 MSD: Vi5 VTEMPLATE: ************* CLONE VACCESS5
+*****************
May 8 12:05:56.573 MSD: Vi5 VTEMPLATE: Clone from Virtual-Template1
default ip address
encap ppp
ip unnumbered FastEthernet1/0
ip tcp header-compression
ip unnumbered fastEthernet 1/0
no ip directed-broadcast
no cdp e
encapsulation ppp
ip unnumbered fa1/0
encap ppp
end
May 8 12:05:56.657 MSD: Vi5 VTEMPLATE: Has a new cloneblk AAA, now it has
+vtemplate/AAA
May 8 12:05:56.661 MSD: Vi5 VTEMPLATE: ************* CLONE VACCESS5
****************
May 8 12:05:56.661 MSD: Vi5 VTEMPLATE: Clone from AAA
ip tcp header-compression
ppp timeout idle 600 aaa
timeout absolute 1440 0
end
May 8 12:05:56.681 MSD: VTEMPLATE: Receiving vaccess request, id 0x62FA4C74,
+result 1
May 8 12:05:56.681 MSD: Vi5 VP: Cancel request successfully Se1/0:0
May 8 12:05:56.681 MSD: Vi5 VTEMPLATE: Free vaccess
May 8 12:05:56.681 MSD: VTEMPLATE: Clean up dirty vaccess queue, size 1
May 8 12:05:56.681 MSD: Vi5 VTEMPLATE: Found a dirty vaccess clone with
+vtemplate/AAA
May 8 12:05:56.681 MSD: Vi5 VTEMPLATE: ************ UNCLONE VACCESS5
+**************
May 8 12:05:56.681 MSD: Vi5 VTEMPLATE: Unclone to-be-freed command#3
default timeout absolute 1440 0
default ppp timeout idle 600 aaa
default ip tcp header-compression
end
May 8 12:05:56.713 MSD: Vi5 VTEMPLATE: Remove cloneblk AAA with vtemplate/AAA> May 8 12:05:56.713 MSD: VTEMPLATE: Found a AAA buf for AAA clone blk.
May 8 12:05:56.717 MSD: Vi5 VTEMPLATE: ************ UNCLONE VACCESS5
+**************
May 8 12:05:56.717 MSD: Vi5 VTEMPLATE: Unclone to-be-freed command#9
default encap ppp
default ip unnumbered fa1/0
default encapsulation ppp
default cdp e
default ip directed-broadcast
default ip unnumbered fastEthernet 1/0
default ip tcp header-compression
default ip unnumbered FastEthernet1/0
default encap ppp
end
May 8 12:05:56.797 MSD: Vi5 VTEMPLATE: Remove cloneblk vtemplate with
+vtemplateMay 8 12:05:56.805 MSD: Vi5 VTEMPLATE: Set default settings with no
+ip address
May 8 12:05:56.809 MSD: Vi5 VTEMPLATE: Add vaccess to recycle queue, queue
+size 33
current config (some parts belongs to voip):
aaa new-model
!
!
aaa group server radius voipaaa
server xx.xx.40.5 auth-port 1645 acct-port 1646
!
aaa group server radius dialin
server xx.xx.42.2 auth-port 1645 acct-port 1646
!
aaa authentication login default local
aaa authentication login h323 group voipaaa
aaa authentication ppp default group dialin
aaa authorization exec default local
aaa authorization exec h323 group voipaaa
aaa authorization network default group dialin
aaa accounting delay-start
aaa accounting network default start-stop group dialin
aaa accounting connection default start-stop group dialin
aaa accounting connection h323 start-stop group voipaaa
aaa nas port extended
aaa nas port voip
aaa session-id common
!
no ip bootp server
virtual-profile if-needed
virtual-profile virtual-template 1
virtual-profile aaa
async-bootp dns-server xx.xx.40.2
isdn switch-type primary-net5
!
controller E1 1/0
pri-group timeslots 1-31
!
interface Serial1/0:15
no ip address
encapsulation ppp
no logging event link-status
dialer rotary-group 0
dialer-group 1
isdn switch-type primary-net5
isdn incoming-voice modem
no fair-queue
no cdp enable
!
interface Virtual-Template1
ip unnumbered FastEthernet1/0
ip tcp header-compression
peer default ip address pool dialin
ppp authentication pap
ppp multilink
multilink max-links 2
!
interface Group-Async1
ip unnumbered FastEthernet1/0
encapsulation ppp
no logging event link-status
async mode dedicated
peer default ip address pool dialin
ppp authentication pap
group-range 65 94
!
interface Dialer0
ip unnumbered FastEthernet1/0
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer-group 1
peer default ip address pool dialin
no fair-queue
no cdp enable
ppp authentication pap
ppp multilink
!
ip local pool dialin xx.xx.42.32 xx.xx.42.63
!
dialer-list 1 protocol ip permit
radius-server host xx.xx.40.5 auth-port 1645 acct-port 1646 non-standard key 7 ***
radius-server host xx.xx.42.2 auth-port 1645 acct-port 1646 non-standard key 7 ***
radius-server retransmit 3
radius-server attribute 6 on-for-login-auth
radius-server attribute 6 voice 1
radius-server attribute 44 include-in-access-req
radius-server authorization permit missing Service-Type
radius-server vsa send accounting
radius-server vsa send authentication
!
line 65 94
modem InOut
transport input all
