P2P configuration for Cisco 1721 routers

[JuanPine]

Hi, i am setting up a P2P 3MB link between a main office and branch office. I need help to get me started. Can someone please post a sample configuration file for me. Btw the only traffic for now over the ppp will be VoIP. Later i may have the branch office go out to the web thru the 4.5mb pipe at main office
Main Office:
Lan -- 10.10.0.x
Cisco 1721 (1)WIC

Branch Office
Lan -- 10.10.1.x
Cisco 1721 (1)WIC

 

[burtsbees]

You mean how do you set IP addresses on the WAN link? Not sure what you're asking...plus, are the WIC's voice WICs???

Burt

 

[plshlpme]

hope is the 3mb being delivered? DSL? two t1's? ATM?
we need mroe details to help you with a config.

 

[JuanPine]

the 3mb is being delivered via 2T1's. The WIC's are Data not Voice. VoIP will provide inter-office communication, the branch office will have their own PRI into their phone switch. The branch office PBX is setup as a campus switch connecting to the main switch via the P2P 3mb pipe. I hope this helps clarify.

 

[JuanPine]

I guess I am not being too clear, all i am looking for is for a basic configuration on the 1721's that will get the 2 sites talking. Again i have a 3mb data T1, and in the Telco closet i have 2ckts each 1.5mb to add up to my 3mb pipe. i know i will need to buy a 2nd WIC for the routers but can i just get it up on just on leg for now?

 

[plshlpme]

you controle the routers at both ends of this link?

you probaly want to use a multilink design so that you can combine load balance both t1s a little better
i just did a quick google and found this.


interface Multilink1
bandwidth 3072
ip address XXX.XXX.XXX.XXX 255.255.255.252
no cdp enable
ppp multilink
ppp multilink fragment disable
ppp multilink group 1
!
interface Serial3/0:0
bandwidth 1536
no ip address
encapsulation ppp
no cdp enable
ppp multilink
ppp multilink group 1
!
interface Serial3/1:0
bandwidth 1536
no ip address
encapsulation ppp
no cdp enable
ppp multilink
ppp multilink group 1

but for more info see

http://www.cisco.com/warp/public/793/access_dial/multilink_2serial_async.html

 

[plshlpme]

sorry wrong link...

this one is better

http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_example09186a00800a3b85.shtml

 

[JuanPine]

Hey thanks for the quick response, i will check the link out. I need to get out to the client site and i am dying here without a solution so i apologize if i sound a bit hasty.

 

[JuanPine]

i will paste the configuration i currently have on the remote site router. Before i drive across town can anybody tell me if this stands a sbowball's chance in hell to work.

Asset-Northern#sh run
Building configuration...

Current configuration : 900 bytes
!
! No configuration change since last restart
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Asset-Northern
!
logging queue-limit 100
enable secret 5 $1$y3q.$0TUaxShobiMp5.Yp0Q60E0
enable password xxxxxxx
!
clock timezone UTC -7
ip subnet-zero
!
!
!
!
no virtual-template subinterface
!
!
!
interface FastEthernet0
ip address 10.10.1.1 255.255.255.0
speed auto
half-duplex
!
interface Serial0
bandwidth 1536
ip address 172.16.2.2 255.255.255.0
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24
!
router rip
redistribute connected
network 192.168.110.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.2.1
ip http server
!
!
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
!
line con 0
line aux 0
line vty 0 4
password 1magellan1
login
!
end

Asset-Northern#sh ip int brie
Interface IP-Address OK? Method Status Prot ocol
FastEthernet0 10.10.1.1 YES NVRAM up up
Serial0 172.16.2.2 YES NVRAM up down
Virtual-Access1 unassigned YES unset up up
Asset-Northern#

 

[plshlpme]

so are you installing a second t1? that one only has one t1 in it...

 

[JuanPine]

yeah the Telco has already delivered it but we only ordered the routers with 1 WIC. We are ordering a 2nd WIC. I will the need to reconfigure

 

[plshlpme]

ok well since its a point to point
you dont need to use a whole /24 on it
you could instead use a /30 to save address space

Site A
interface Multilink1: AttachMate solutions Links
ip address 172.16.2.1 255.255.255.252
no cdp enable
ppp multilink
ppp multilink fragment disable
ppp multilink group 1

interface Serial0
bandwidth 1536
no ip address
encapsulation ppp
no cdp enable
ppp multilink
ppp multilink group 1
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24


Site B

interface Multilink1
ip address 172.16.2.2 255.255.255.252
no cdp enable
ppp multilink
ppp multilink fragment disable
ppp multilink group 1

interface Serial0
bandwidth 1536
no ip address
encapsulation ppp
no cdp enable
ppp multilink
ppp multilink group 1
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24


that should get you up and running. and then you can just add your 2nd t1 to the multilink when you get it installed
that way there will be very little config to change out.

 

[plshlpme]

the board is changeing the first line there...
it should read interface multil ink1

without the space...

as soon as you type "l i n k" it goes and adds its own little spin to it.

 

[JuanPine]

thanks for all your help "plshlpme" i got your message after i had already left the main site and offices are literally 30 miles apart. i will switch the configuration over once i get the 2nd WIC. For now i am trying to get this setup to work. Can you see anything wrong? I am starting to question Telco problem

*****--------Main Site-----*****
Bell_Rd#sh run
Building configuration...

Current configuration : 1000 bytes
!
! Last configuration change at 00:36:25 UTC Mon Apr 16 2007
! NVRAM config last updated at 00:36:28 UTC Mon Apr 16 2007
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Bell_Rd
!
logging queue-limit 100
enable secret 5 $1$76ro$MHABFeqdXvpk64z.VE3JA.
enable password 1magellan1
!
ip subnet-zero
!
!
interface FastEthernet0
ip address 10.10.0.1 255.255.255.0
speed auto
half-duplex
!
interface Serial0
bandwidth 1536
ip address 172.16.2.1 255.255.255.0
encapsulation ppp
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
router rip
redistribute connected
network 10.0.0.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.2.2
no ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
snmp-server community public RO
snmp-server enable traps tty
!
line con 0
line aux 0
line vty 0 4
password 1magellan1
login
!
no scheduler allocate
end

Bell_Rd#sh int
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 0017.5961.0edc (bia 0017.5961.0edc)
Internet address is 10.10.0.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 1 packets/sec
5 minute output rate 0 bits/sec, 1 packets/sec
646 packets input, 56161 bytes
Received 450 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
415 packets output, 41537 bytes, 0 underruns
3 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
3 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Serial0 is up, line protocol is down
Hardware is PQUICC with Fractional T1 CSU/DSU
Internet address is 172.16.2.1/24
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP Listen, loopback not set
Last input never, output 00:00:12, output hang never
Last clearing of "show interface" counters 00:25:35
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 1152 kilobits/sec
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
310 packets output, 4340 bytes, 0 underruns
0 output errors, 0 collisions, 85 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1492 bytes, BW 100000 Kbit, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Base PPPoE vaccess, loopback not set
DTR is pulsed for 5 seconds on reset
Last input never, output never, output hang never
Last clearing of "show interface" counters 00:35:10
Input queue: 0/4096/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Bell_Rd#sh ip int brie
Interface IP-Address OK? Method Status Protocol
FastEthernet0 10.10.0.1 YES manual up up
Serial0 172.16.2.1 YES manual up down
Virtual-Access1 unassigned YES unset up up
Bell_Rd#

*******--------Remote Site--------********
Asset-Northern#sh run
Building configuration...

Current configuration : 991 bytes
!
! Last configuration change at 20:03:08 UTC Sat Jun 9 2007
! NVRAM config last updated at 20:03:11 UTC Sat Jun 9 2007
!
version 12.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Asset-Northern
!
logging queue-limit 100
enable secret 5 $1$y3q.$0TUaxShobiMp5.Yp0Q60E0
enable password *******
!
clock timezone UTC -7
ip subnet-zero
!
!
no virtual-template subinterface
!
interface FastEthernet0
ip address 10.10.1.1 255.255.255.0
speed auto
half-duplex
!
interface Serial0
bandwidth 1536
ip address 172.16.2.2 255.255.255.0
encapsulation ppp
no ip mroute-cache
no fair-queue
service-module t1 timeslots 1-24
!
router rip
redistribute connected
network 10.0.0.0
network 192.168.110.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.2.1
ip http server
!
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
!
!
line con 0
line aux 0
line vty 0 4
password *******
login
!
end

Asset-Northern#sh int
FastEthernet0 is up, line protocol is up
Hardware is PQUICC_FEC, address is 0016.46d9.d47c (bia 0016.46d9.d47c)
Internet address is 10.10.1.1/24
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 100Mb/s, 100BaseTX/FX
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 0 bits/sec, 1 packets/sec
6022 packets input, 437789 bytes
Received 821 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog
0 input packets with dribble condition detected
6640 packets output, 562607 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier
0 output buffer failures, 0 output buffers swapped out
Serial0 is up, line protocol is down
Hardware is PQUICC with Fractional T1 CSU/DSU
Internet address is 172.16.2.2/24
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP REQsent, loopback not set
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters 04:30:26
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
3236 packets output, 45304 bytes, 0 underruns
0 output errors, 0 collisions, 356 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
DCD=up DSR=up DTR=up RTS=up CTS=up

Virtual-Access1 is up, line protocol is up
Hardware is Virtual Access interface
MTU 1492 bytes, BW 100000 Kbit, DLY 100000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Base PPPoE vaccess, loopback not set
DTR is pulsed for 5 seconds on reset
Last input never, output never, output hang never
Last clearing of "show interface" counters 04:30:26
Input queue: 0/4096/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
0 carrier transitions
Asset-Northern#sh ip int brie
Interface IP-Address OK? Method Status Protocol
FastEthernet0 10.10.1.1 YES NVRAM up up
Serial0 172.16.2.2 YES NVRAM up down
Virtual-Access1 unassigned YES unset up up
Asset-Northern#

 

[plshlpme]

thats a pretty straight forward design..
is the telco providing clocking to you?
maybe you could call them and ask them to loop the csu at site 2 and see if you see your t1 come up/up at sitea