From: jmaiman@xxxxxxxxxxxxxx
Date: Mon Oct 08 2001 - 16:33:45 GMT-3
Brian,
Mutlilink interfaces (i.e. interface multilink1....) require CEF.
Assuming the 2500 seriwa supports CEF (never tried it), you need to insure
is is enabled (i.e. "Ip CEF" needs to be included at the global
configuration level).
--Jon
"Brian Lodwick" <xpranax@hotmail.com>@groupstudy.com on 10/08/2001 03:20:34
PM
Please respond to "Brian Lodwick" <xpranax@hotmail.com>
Sent by: nobody@groupstudy.com
To: dougmorse@avaya.com
cc: ccielab@groupstudy.com
Subject: RE: PPP Multilink and IP Unnumbered problem
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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