From: Brian Lodwick (xpranax@xxxxxxxxxxx)
Date: Mon Oct 08 2001 - 16:20:34 GMT-3
I wished I could, but thats what my problem is, on the 2500 you cannot
create a multilink interface, or multilink-groups. That's why I was saying
it is associated to the Virtual-Access interface.
>>>Brian
>From: "Morse, Doug W (Doug)" <dougmorse@avaya.com>
>Reply-To: "Morse, Doug W (Doug)" <dougmorse@avaya.com>
>To: "Brian Lodwick" <xpranax@hotmail.com>, <ccielab@groupstudy.com>
>Subject: RE: PPP Multilink and IP Unnumbered problem
>Date: Mon, 8 Oct 2001 12:51:10 -0600
>
>I believe you need to configure a multilink group, apply that group to
>the appropriate interfaces and subsequently take the ip addresses off
>those interfaces and then configure for instance:
>interface multilink 1
>ip address 10.10.10.1 255.255.255.252
>etc.
>
>-----Original Message-----
>From: Brian Lodwick [mailto:xpranax@hotmail.com]
>Sent: Monday, October 08, 2001 2:26 PM
>To: ccielab@groupstudy.com
>Subject: PPP Multilink and IP Unnumbered problem
>
>
>I am having a problem with my new lab scenario. I am attempting to bond
>2
>sync serial lines with ppp multilink between 2 routers. On one side I
>have a
>4500 which works great, I configure a single ip address on a Multilink
>interface and associate the 2 serial lines to this interface. The other
>side
>is the issue though. On the other side I have a 2500 and I am unable to
>configure a Multilink interface. When I put ppp multilink on the serial
>interfaces then show ppp multilink it shows they are associated to a
>Virtual-Access interface. Then when I show interface Virtual-Access it
>says
>it is unnumbered using E0's ip address. I don't want it to use the E0's
>ip
>address because basicly I don't understand how that would ever work? I
>cannot configure an ip address on the Virtual-Access interface, because
>when
>I try I get this:
>
>r6(config)#int virtual-access 1
>% Please use virtual template to configure your virtual access
>
>So I tried to configure the ip address on the Virtual-template, but the
>virtual-access interface still kept using ip unnumbered ethernet 0.
>
>r4 = 4500 (one side of ppp multipoint link)
>r6 = 2500 (other side of ppp multipoint link)
>r5 = 2500 (on same ethernet segment as r6's e0)
>How can I have this bonded link between r6 and r4, have the multipoint
>link
>stay unnumbered ethernet 0 on r6, and still have every router be
>pingable?
>If I put the ethernet of r6 in the same segment as r4 then the multilink
>
>bundle works, but then r5 cannot ping r6 because they are in different
>subnets. I am troubled with using unnumbered. I don't think I quite
>understand the application of using ip unnumbered. I believe I
>understand
>the concept, but I am failing to understand the correct application.
>Below
>is a quick diagram and my configs. Thanks in advance!
>
> >>>Brian
>
>r5---eth----r6-----MPPP----r4
>
>
>r5#sh run
>Building configuration...
>
>Current configuration:
>!
>version 12.0
>service timestamps debug uptime
>service timestamps log uptime
>no service password-encryption
>!
>hostname r5
>!
>!
>ip subnet-zero
>no ip domain-lookup
>!
>!
>!
>interface Ethernet0
>ip address 192.168.50.1 255.255.255.0
>no ip directed-broadcast
>no keepalive
>media-type 10BaseT
>!
>interface Ethernet1
>no ip address
>no ip directed-broadcast
>shutdown
>media-type 10BaseT
>!
>interface Serial0
>no ip address
>no ip directed-broadcast
>no ip mroute-cache
>shutdown
>no fair-queue
>!
>interface Serial1
>no ip address
>no ip directed-broadcast
>shutdown
>!
>interface Serial2
>no ip address
>no ip directed-broadcast
>shutdown
>!
>interface Serial3
>no ip address
>no ip directed-broadcast
>shutdown
>!
>interface FastEthernet0
>no ip address
>no ip directed-broadcast
>!
>interface FastEthernet0.1
>encapsulation isl 17
>ip address 209.154.229.9 255.255.255.252
>no ip redirects
>no ip directed-broadcast
>!
>interface FastEthernet0.2
>encapsulation isl 20
>ip address 209.154.229.6 255.255.255.252
>no ip redirects
>no ip directed-broadcast
>!
>router eigrp 100
>network 192.168.50.0
>network 209.154.229.0
>!
>router bgp 500
>no synchronization
>network 192.168.50.0
>neighbor 209.154.229.5 remote-as 300
>neighbor 209.154.229.10 remote-as 500
>neighbor 209.154.229.10 next-hop-self
>no auto-summary
>!
>ip nat translation timeout never
>ip nat translation tcp-timeout never
>ip nat translation udp-timeout never
>ip nat translation finrst-timeout never
>ip nat translation syn-timeout never
>ip nat translation dns-timeout never
>ip nat translation icmp-timeout never
>ip classless
>!
>alias exec ip sh ip route
>alias exec ipx sh ipx route
>alias exec int sh ip int brief
>!
>line con 0
>transport input none
>line aux 0
>line vty 0 4
>login
>!
>end
>
>
>r6#sh ru
>3d02h: %SYS-5-CONFIG_I: Configured from console by consolen
>Building configuration...
>
>Current configuration:
>!
>version 12.0
>service timestamps debug uptime
>service timestamps log uptime
>no service password-encryption
>!
>hostname r6
>!
>!
>ip subnet-zero
>no ip domain-lookup
>multilink virtual-template 1
>!
>!
>!
>interface Ethernet0
>ip address 209.154.229.10 255.255.255.252 secondary
>ip address 192.168.40.17 255.255.255.240
>no ip directed-broadcast
>!
>interface Virtual-Template1
>no ip address
>no ip directed-broadcast
>ppp multilink
>!
>interface Serial0
>no ip address
>no ip directed-broadcast
>encapsulation ppp
>no ip mroute-cache
>no fair-queue
>clockrate 64000
>ppp multilink
>!
>interface Serial1
>no ip address
>no ip directed-broadcast
>encapsulation ppp
>no fair-queue
>clockrate 64000
>ppp multilink
>!
>router eigrp 100
>network 192.168.100.0
>network 209.154.229.0
>!
>router bgp 500
>no synchronization
>neighbor 192.168.100.2 remote-as 500
>neighbor 192.168.100.2 route-reflector-client
>neighbor 209.154.229.9 remote-as 500
>neighbor 209.154.229.9 route-reflector-client
>no auto-summary
>!
>ip classless
>!
>alias exec ip sh ip route
>alias exec ipx sh ipx route
>alias exec int sh ip int brief
>!
>line con 0
>transport input none
>line 1 16
>line aux 0
>line vty 0 4
>login
>!
>end
>
>
>
>r4#sh run
>Building configuration...
>
>Current configuration:
>!
>version 12.0
>service timestamps debug uptime
>service timestamps log uptime
>no service password-encryption
>!
>hostname r4
>!
>!
>!
>!
>!
>!
>ip subnet-zero
>no ip domain-lookup
>!
>cns event-service server
>!
>!
>!
>!
>!
>interface Multilink1
>ip address 192.168.40.18 255.255.255.240
>no ip directed-broadcast
>no cdp enable
>ppp multilink
>multilink-group 1
>!
>interface Ethernet0
>ip address 192.168.40.2 255.255.255.240
>no ip directed-broadcast
>!
>interface Ethernet1
>no ip address
>no ip directed-broadcast
>shutdown
>media-type 10BaseT
>!
>interface Serial0
>no ip address
>no ip directed-broadcast
>encapsulation ppp
>no ip mroute-cache
>no fair-queue
>ppp multilink
>multilink-group 1
>!
>interface Serial1
>no ip address
>no ip directed-broadcast
>encapsulation ppp
>no fair-queue
>ppp multilink
>multilink-group 1
>!
>interface Serial2
>no ip address
>no ip directed-broadcast
>shutdown
>!
>interface Serial3
>no ip address
>no ip directed-broadcast
>shutdown
>!
>interface TokenRing0
>no ip address
>no ip directed-broadcast
>shutdown
>ring-speed 16
>!
>interface TokenRing1
>ip address 192.168.40.49 255.255.255.240
>no ip directed-broadcast
>ring-speed 16
>!
>!
>ip classless
>no ip http server
>!
>!
>!
>!
>!
>!
>!
>!
>!
>!
>alias exec ip sh ip route
>alias exec int sh ip int brief
>alias exec ipx sh ipx route
>!
>line con 0
>transport input none
>line aux 0
>line vty 0 4
>login
>!
>end
>
>
>r4#sh ppp multilink
>
>Multilink1, bundle name is r6
> 0 lost fragments, 0 reordered, 0 unassigned, sequence 0x12C/0x14
>rcvd/sent
> 0 discarded, 0 lost received, 1/255 load
> Member links: 2 active, 0 inactive (max not set, min not set)
> Serial1
> Serial0
>
>r6#sh ppp multilink
>
>Bundle r4, 2 members, Master link is Virtual-Access1
> 0 lost fragments, 0 reordered, 0 unassigned, sequence 0x14/0x12C
>rcvd/sent
> 0 discarded, 0 lost received, 1/255 load
>
>Member Links: 2 (max not set, min not set)
>Serial0
>Serial1
>r6#sh int virtual-access 1
>Virtual-Access1 is up, line protocol is up
> Hardware is Virtual Access interface
> Interface is unnumbered. Using address of Ethernet0 (192.168.40.17)
> MTU 1500 bytes, BW 3088 Kbit, DLY 100000 usec, rely 255/255, load
>1/255
> Encapsulation PPP, loopback not set, keepalive set (10 sec)
> DTR is pulsed for 5 seconds on reset
> LCP Open, multilink Open
> Open: IPCP
> Last input 00:26:00, output never, output hang never
> Last clearing of "show interface" counters 01:29:54
> Queueing strategy: fifo
> Output queue 0/40, 0 drops; input queue 0/75, 0 drops
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 11 packets input, 1054 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
> 524 packets output, 65956 bytes, 0 underruns
> 0 output errors, 0 collisions, 0 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 0 carrier transitions
>
>
>
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