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New Member

2511 to Compaq Tru64 DS20

I cannot get a connection up between a 2500 and a Compaq Tru64 DS20 running Unix 5.1a, with a Digi Fire 2000 WAN card, using a X21 cable (DCE at the 2500 end). On the 2500, the int is up/down. If I put a modem emulator between them it works fine, (2500 cable changed to X21 DTE), and if I use a CAB-V35FC to a V35 DTE this also works.

This is using X25 encapsulation.

Compaq state that an emulator is required for X21 cables, but we would prefer not to have emulators all over the place for this particular scenario.

Does anybody know of a way around this?

Here is the config for the serial interfaces.

!

interface Serial0 description x25 AMD connection (x21 connection)

no ip address

no ip directed-broadcast

no ip mroute-cache

encapsulation x25 dce

x25 ltc 1024

x25 htc 1039

x25 win 7

x25 wout 7

x25 ips 1024

x25 ops 1024

clockrate 64000

lapb T1 2000

lapb interface-outage 6000

lapb T4 10

lapb N1 8216

lapb N2 255

!

interface Serial1 description x25 AMD connection (v35 connection)

no ip address

no ip directed-broadcast

no ip mroute-cache

encapsulation x25 dce

x25 ltc 1024

x25 htc 1039

x25 win 7

x25 wout 7

clockrate 64000

lapb T1 2000

lapb interface-outage 6000

lapb T4 10

lapb N1 8216

lapb N2 255

!

1 REPLY
New Member

Re: 2511 to Compaq Tru64 DS20

I would only suspect the X.21 cable.

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