Daniele Orlandi wrote on 25/10/2008 20:06:
On Monday 20 October 2008 15:43:03 Marko Milivojevic wrote:
Before I accuse intermediate DSLAM filtering them, could you post
relevant interface and OSPF process configurations from both routers,
please?
Marko,
Would it be possible for a DSLAM to implement filtering on the AAL5
encapsulated traffic? It would have to decapsulate and interpret UDP/IP
packets to do it. Did you experience anything similar?
I have met dslams that block broadcast/multicast traffic going from the user side to the
network side. But it was IPoA traffic. In your case the traffic is encapsulated into PPP,
so it should be much harder for the dslam to check inside it.
I would point my finger at a IOS bug, however I tried several completely
different IOSes on both the termination and DSL box with no change.
Anyway, this is the relevant configuration:
7200 PPP terminator:
------------------------------
interface ATM2/0
no ip address
load-interval 30
atm sonet stm-1
atm pppatm passive
no atm auto-configuration
no atm ilmi-keepalive
no atm address-registration
no atm ilmi-enable
range PPPOA-10 pvc 10/100 10/250
ubr 1000
dbs enable
oam-range manage
encapsulation aal5mux ppp Virtual-Template1
create on-demand
interface Virtual-Template1
ip unnumbered Loopback0
no ip redirects
no ip proxy-arp
ip ospf message-digest-key 1 md5 7 xxxx
ip ospf network point-to-point
peer default ip address pool adsl
ppp authentication pap callin adsl
ppp authorization adsl
ppp accounting adsl
router ospf 9026
log-adjacency-changes
area 0 authentication message-digest
summary-address 62.212.6.0 255.255.255.0
summary-address 62.212.4.0 255.255.255.0
redistribute connected subnets
redistribute static subnets
network 62.212.0.0 0.0.31.255 area 0
-----
Below you don't have an ip address ;)
Is everything (including ppp negotiation) working fine between the endpoints?
Can you do a ping between them? Is loopback0 configured?
gw-dsl#sh ip ospf interface Vi2.21
Virtual-Access2.21 is up, line protocol is up
Internet Address 0.0.0.0/0, Area 0
Process ID 9026, Router ID 62.212.3.248, Network Type POINT_TO_POINT, Cost:
100
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:00
Index 33/33, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
Youngest key id is 1
--
Tassos
2800 DSL Box:
------------------------------
interface ATM0/1/0
no ip address
no atm ilmi-keepalive
dsl operating-mode auto
pvc 8/35
encapsulation aal5mux ppp Virtual-Template1
interface Virtual-Template1
ip address negotiated
ip ospf message-digest-key 1 md5 7 xxx
ipv6 enable
ppp pap sent-username uli.adsl password 7 xxx
router ospf 9026
log-adjacency-changes
area 0 authentication message-digest
redistribute connected subnets
redistribute static metric 200 subnets
network 62.212.0.0 0.0.31.255 area 0
---------
gw-milano#sh ip ospf interface Vi1.1
Virtual-Access1.1 is up, line protocol is up
Internet Address 62.212.6.189/32, Area 0
Process ID 9026, Router ID 62.212.3.243, Network Type POINT_TO_POINT, Cost:
284
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:07
Supports Link-local Signaling (LLS)
Index 5/5, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
Youngest key id is 1
Bye,
_______________________________________________
cisco-nsp mailing list [email protected]
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
