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Problem with BSTUN encapsulation

Hi everybody,

I have a problem to establish a BSTUN link between Cisco 2901 routers.

I've read in the documentation that the protocol could pass through any media, but I can't open a connection, I tried ethernet and serial... My goal is to pass through an ethernet network

My configurations :

###BOTH ROUTERS###

Version 15.0(1r)M12

###ROUTER1###

bstun peer-name 10.10.10.10

bstun protocol-group 1 bsc

bstun remote-peer-keepalive

bstun peer-drop-timer 20

bstun peer-map-poll

!

interface GigabitEthernet0/0

ip address 10.10.10.10 255.255.255.0

duplex auto

speed auto

!

interface Serial0/0/0 # BSC transmitter interface

no ip address

ip directed-broadcast

encapsulation bstun

full-duplex

no keepalive

clock rate 9600

bstun group 1

bsc secondary

bstun route all tcp 10.10.10.11

!

###ROUTER2###

bstun peer-name 10.10.10.11

bstun protocol-group 1 bsc

bstun remote-peer-keepalive

bstun peer-drop-timer 20

bstun peer-map-poll

!

interface GigabitEthernet0/0

ip address 10.10.10.11 255.255.255.0

duplex auto

speed auto

!

interface Serial0/0/0 # BSC receiver interface

no ip address

ip directed-broadcast

encapsulation bstun

full-duplex

no keepalive

clock rate 9600

bstun group 1

bsc primary

bstun route all tcp 10.10.10.10

!

1) I can see the packets on the router1 where the BSC transmitter is connected. But I have this message : "Out of SYN-hunt mode.". What does that mean?

router1# sh bsc

BSC pass-through on Serial0/0/0:

Out of SYN-hunt mode.

HDX enforcement state: IDLE.

Frame sequencing state: IDLE .

Total Tx Counts: 0 frames(total). 0 frames(data). 0 bytes.

Total Rx Counts: 7137 frames(total). 7137 frames(data). 42822 bytes.

2) My BSTUN link stay closed on each side :

router1#sh bstun

This peer: 10.10.10.10

  Serial0/0/0  (group 1 [bsc])

route transport address         dlci lsap state  rx_pkts tx_pkts   drops

all      TCP       10.10.10.11               closed      0       0       0

Do you have any ideas on my problem ? What does it mean "Out of SYN-hunt mode" ?

Thanks for your help.

Vince.

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