I am trying to get a 1720 to use a isdn bri link for traffic to one ip address. However I can't get it to lift the line. If I manually lift the line it routes the packet ok. I used debug for isdn events and ppp authentication and dialer and got no output. the only response was from DEBUG IP PACKET 101 the result of which is below with the config.
Thanks for your prompt response. I am in the UK so the isdn flavour is basic-net3 (no spid's) I've included the output SH ISDN STATUS and SH DIALER1 They look fine and as I say it all works fine if I manually lift the line.
As to the OSPF area 0.0.0.0 is attached to the core router but not on the sub-interfaces attached to this router.
bort#sh isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-net3
Layer 1 Status:
Layer 2 Status:
TEI = 116, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Number of L2 Discards = 0, L2 Session ID = 64
Total Allocated ISDN CCBs = 0
bort#sh int dialer1
Dialer1 is up (spoofing), line protocol is up (spoofing)
Hardware is Unknown
Internet address is 220.127.116.11/25
MTU 1500 bytes, BW 56 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
DTR is pulsed for 1 seconds on reset
Last input never, output never, output hang never
Last clearing of "show interface" counters 9w1d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
It looks like the route to the dialer is working. The encap failed is normal on a ddr line until it comes up. Turn on all isdn debugs and debug dialer and see if it is trying to call and what is happening.
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