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AS5300 configuration assistance

daniel.kline
Level 1
Level 1

I need to configure an AS5300 for dialin access to a corporate network. There will be a PRI circuit associated with a 1-800 hunt group. What is required to connect the AS5300 PRI interface to the service provider network (csu/dsu)?

Does anyone have a known working AS5300 configuration with PRI interface(s) for dialin that they can share with me as a reference?

Thank you in advance,

Dan

23 Replies 23

s29, s30, s31 are the S registers of interest here:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_serv/5300/sw_conf/sw_ports/at_set/atcmnds.htm#4376

In order to apply a modemcap please refer to:

http://www.cisco.com/warp/public/471/recc_modemcaps.html

Thanks, Mak.

Mak,

I have used the modem-pool command to direct incoming calls to the appropriate mica modems (line), and the modemcap command to set the autoanswer to "immediate" and the s30 register to the appropriate maximum speed (1200/9600). This is desired in order to minimize the negotiation time for the dial client connection.

Below is a copy of the config. Would it be possible for you to review it and verify that I have configured the modem-pool and modemcap commands correctly?

Thank You,

Dan

version 12.1

no service single-slot-reload-enable

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

!

hostname as5300

!

logging rate-limit console 10 except errors

aaa new-model

aaa authentication login default local

aaa authentication ppp default local

aaa authorization network default local

enable secret 5 removed

enable password removed

!

username admin password 0 removed

username ccuunit password 0 removed

username scuunit password 0 removed

username meiunit password 0 removed

spe 1/0 1/7

firmware location flash:mica-modem-pw.2.7.2.0.bin

spe 2/0 2/7

firmware location flash:mica-modem-pw.2.7.2.0.bin

!

!

resource-pool disable

!

modem-pool m1200

pool-range 1-3

called-number 333-333-3333 max-conn 3

!

modem-pool m9600

pool-range 4-13

called-number 444-444-4444 max-conn 10

!

modem-pool default

pool-range 14-23

called-number 555-555-5555 max-conn 10

!

clock timezone EST -5

clock summer-time EDT recurring

modem country mica usa

ip subnet-zero

no ip source-route

no ip finger

ip domain-name cisco.com

ip name-server

ip name-server

!

no ip bootp server

async-bootp dns-server 129.41.128.5

isdn switch-type primary-4ess

modemcap entry 1200bps:AA=0:MSC=S30=1200

modemcap entry 9600bps:AA=0:MSC=S30=9600

!

!

controller T1 0

framing esf

clock source line primary

linecode b8zs

pri-group timeslots 1-24

!

controller T1 1

clock source line secondary 1

!

controller T1 2

clock source line secondary 2

!

controller T1 3

clock source line secondary 3

!

!

interface Loopback0

ip address 192.168.1.1 255.255.255.0

!

interface Ethernet0

no ip address

no ip mroute-cache

shutdown

!

interface Serial0

no ip address

no fair-queue

clockrate 2015232

!

interface Serial1

no ip address

shutdown

no fair-queue

clockrate 2015232

!

interface Serial2

no ip address

shutdown

no fair-queue

clockrate 2015232

!

interface Serial3

no ip address

shutdown

no fair-queue

clockrate 2015232

!

interface Serial0:23

no ip address

encapsulation ppp

dialer rotary-group 1

isdn switch-type primary-4ess

isdn incoming-voice modem

no fair-queue

no cdp enable

ppp authentication chap pap ms-chap

!

interface Group-Async1

ip unnumbered Loopback0

encapsulation ppp

no ip mroute-cache

dialer in-band

dialer idle-timeout 300

dialer-group 1

async mode interactive

peer default ip address pool dialin_pool

ppp authentication chap pap ms-chap

group-range 1 24

!

interface Dialer1

ip unnumbered Loopback0

encapsulation ppp

no ip mroute-cache

dialer in-band

dialer idle-timeout 600

dialer-group 1

peer default ip address pool dialin_pool

no fair-queue

no cdp enable

ppp authentication ms-chap chap

!

ip local pool dialin_pool 192.168.1.2 192.168.1.25

ip default-gateway xx.xx.xx.xx

ip classless

ip route 0.0.0.0 0.0.0.0 xx.xx.xx.xx

no ip http server

!

dialer-list 1 protocol ip permit

!

line con 0

password removed

transport input none

line 1 3

autoselect during-login

autoselect ppp

modem InOut

modem autoconfigure type 1200bps

transport input all

line 4 13

autoselect during-login

autoselect ppp

modem InOut

modem autoconfigure type 9600bps

transport input all

line 14 24

autoselect during-login

autoselect ppp

modem InOut

transport input all

line 25 96

line aux 0

exec-timeout 15 0

password removed

line vty 0 4

password removed

!

end

In the modempool commands do not have any "-" between the numbers... keep the called number as 5555555555.

Apply the modemcap as follows:

router#conf term

router(config)#modemcap edit MODEMCAPNAME misc INITSTRING

router(config)#line BEGIN END

router(config-line)#modem autoconfigure type MODEMCAPNAME

Thanks, Mak.

Thank you, Mak. I corrected the called-number entries. The documentation I have read talks about beginning the init string with &F$D2. I have simply added S0=1200 and S0=9600 in the Misc field. I have also set the autoanswer (AA) field to 0. Is what I have sufficient to properly initialize the modems?

My goal is to minimize the connection time for the dialin users to have the modem answer as soon as it detects an incoming call, and not have to negotiate the connection speed. Is there anything else I need to consider?

Regards,

Dan

modemcap entry 9600:MSC=&f&d2s29=0s30=9600

This will train with the top modulation being V.34 at 9600 bps

modemcap entry v32only:MSC=&f&d2s64=5

This will train using only V.32 (top rate 9600 bps)...NOTE:By using the S64 register, MICA is forced to try ONLY the standard specified in S64 & if that does not connect then the call will fail, there is no fallback with s64.

Thanks, Mak.

The modemcap commands also have subcommands to set AA (autoanswer) and SPEED. Do these set the S0 and S30 registers?

Yes, you can add s0=0 or s0=1(we default to 2) if need be.

&f&d2s0=0s29=0s30=9600

Thanks, Mak.

Thanks again, Mak. I was having some difficulty yesterday getting a modem working on the aux port. Not quite sure if it's a problem with the modem, the aux port, or my configuration. I'm hoping to revisit it today with a new USR Sportster 33600 modem. Below is the latest version of my aux port config.

Dan

line aux 0

exec-timeout 15 0

password removed

login

modem InOut

transport input all

flowcontrol hardware

rxspeed 33600

txspeed 33600

stopbits 1

exec

For USR, reverse telnet into the modem & add the following init string...have dip switches 3 & 8 down , rest up.

at&f1s0=1&c1&d1&a1&w

On the line try with & w/o the speed commands.

Thanks, Mak.