Re: EIGRP over PPP over Frame - Problem

From: Shamin (ccie.xpert@gmail.com)
Date: Sun Mar 04 2007 - 17:26:53 ART


Victor & Antonio,

Thank you for your time and reply.
Presently I am at work, but would definitely work this out when i reach
home.

But will there be issues of authentication here as the Loopback int of R4 is
seen as Eigrp route on R5 and R3.
But R4 does not even receive the Loopback on R3(HUB) or R5 (Other spoke).

Any ways.I will try this without authentication and as Antonia mentioned,
with 2 Virtual-templates.

Regards to you
shamin

On 3/4/07, Victor Cappuccio <victor@ccbootcamp.com> wrote:
>
>
> Hi Shamin,
>
> Check your authentication...
> Remove all the authentication and test it back again
>
>
> This is my test, on a similar lab topology as yours
>
> R1 --- R3 --- R2
> R3(config-router)#do show ip eigrp neigh
> IP-EIGRP neighbors for process 10
> H Address Interface Hold Uptime SRTT
> RTO Q Seq
> (sec) (ms) Cnt
> Num
> 1 158.1.0.1 Vi1 13 00:00:06
> 1292 5000 0 13
> 0 158.1.0.2 Vi2 12 00:00:06 52 312 0 6
> R3(config-router)#^Z
> R3#sh
> *Mar 4 19:21:37.135: %SYS-5-CONFIG_I: Configured from console by console
> R3#show ip route
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 1.0.0.0/24 is subnetted, 1 subnets
> D 1.1.1.0 [90/2713700] via 158.1.0.1, 00:00:23, Virtual-Access1
> 2.0.0.0/24 is subnetted, 1 subnets
> D 2.2.2.0 [90/2713700] via 158.1.0.2, 00:00:26, Virtual-Access2
> 3.0.0.0/24 is subnetted, 1 subnets
> C 3.3.3.0 is directly connected, Loopback0
> 158.1.0.0/16 is variably subnetted, 3 subnets, 2 masks
> C 158.1.0.2/32 is directly connected, Virtual-Access2
> C 158.1.0.1/32 is directly connected, Virtual-Access1
> C 158.1.0.0/24 is directly connected, Virtual-Access1
> is directly connected, Virtual-Access2
> R3#
> R3#
> rack9>2
> [Resuming connection 2 to R2 ... ]
>
> *Mar 4 19:41:24.151: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor
> 158.1.0.3 (Virtual-Access1) is down: metric changed
> R2(config-router)#
> R2(config-router)#
> R2(config-router)#do show ip route
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 1.0.0.0/24 is subnetted, 1 subnets
> D 1.1.1.0 [90/5273700] via 158.1.0.3, 00:00:36, Virtual-Access1
> 2.0.0.0/24 is subnetted, 1 subnets
> C 2.2.2.0 is directly connected, Loopback0
> 3.0.0.0/24 is subnetted, 1 subnets
> D 3.3.3.0 [90/2713700] via 158.1.0.3, 00:00:39, Virtual-Access1
> 158.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
> D 158.1.0.1/32 [90/5145700] via 158.1.0.3, 00:00:39, Virtual-Access1
> C 158.1.0.0/24 is directly connected, Virtual-Access1
> R2(config-router)#
> rack9>1
> [Resuming connection 1 to R1 ... ]
>
> R1(config-router)#
> R1(config-router)#
> R1(config-router)#do show ip route
> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> E1 - OSPF external type 1, E2 - OSPF external type 2
> i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> level-2
> ia - IS-IS inter area, * - candidate default, U - per-user static
> route
> o - ODR, P - periodic downloaded static route
>
> Gateway of last resort is not set
>
> 1.0.0.0/24 is subnetted, 1 subnets
> C 1.1.1.0 is directly connected, Loopback0
> 2.0.0.0/24 is subnetted, 1 subnets
> D 2.2.2.0 [90/5273700] via 158.1.0.3, 00:00:47, Virtual-Access1
> 3.0.0.0/24 is subnetted, 1 subnets
> D 3.3.3.0 [90/2713700] via 158.1.0.3, 00:00:47, Virtual-Access1
> 158.1.0.0/24 is subnetted, 1 subnets
> C 158.1.0.0 is directly connected, Virtual-Access1
> R1(config-router)#
>
> R1(config-router)#default int s0/0/0
> Building configuration...
>
> Interface Serial0/0/0 set to default configuration
> R1(config)#
> *Mar 4 19:46:39.831: %LINK-3-UPDOWN: Interface Virtual-Access1, changed
> state to down
> R1(config)#int s0
> *Mar 4 19:46:39.835: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor
> 158.1.0.3 (Virtual-Access1) is down: interface down
> *Mar 4 19:46:40.831: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Virtual-Access1, changed state to down
> R1(config)#int s0/0/0
> R1(config-if)#sh
> R1(config-if)#encap frame-relay
> R1(config-if)#exit
> R1(config)#
> *Mar 4 19:46:45.687: %LINK-5-CHANGED: Interface Serial0/0/0, changed
> state to administratively down
> *Mar 4 19:46:46.687: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Serial0/0/0, changed state to down
> R1(config)#int s0/0/0.2 point-to-point
> R1(config-subif)# frame-relay interface-dlci 103 ppp Virtual-Template1
> R1(config-fr-dlci)#exit
> R1(config-subif)#int s0/0/0
> R1(config-if)#no sh
> *Mar 4 19:47:25.567: %LINK-3-UPDOWN: Interface Virtual-Access1, changed
> state to up up up
> R1(config-if)#
> *Mar 4 19:47:27.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface
> Virtual-Access1, changed state to up
> *Mar 4 19:47:27.247: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor
> 158.1.0.3 (Virtual-Access1) is up: new adjacency
> R1(config-if)#do show ip eigrp neigh
> IP-EIGRP neighbors for process 10
> H Address Interface Hold Uptime SRTT
> RTO Q Seq
> (sec) (ms) Cnt
> Num
> 0 158.1.0.3 Vi1 12 00:00:07 44
> 264 0 27
> R1(config-if)#do show ip route eigrp
> 2.0.0.0/24 is subnetted, 1 subnets
> D 2.2.2.0 [90/5273700] via 158.1.0.3, 00:00:07, Virtual-Access1
> 3.0.0.0/24 is subnetted, 1 subnets
> D 3.3.3.0 [90/2713700] via 158.1.0.3, 00:00:07, Virtual-Access1
> 158.1.0.0/16 is variably subnetted, 2 subnets, 2 masks
> D 158.1.0.2/32 [90/5145700] via 158.1.0.3, 00:00:07, Virtual-Access1
> R1(config-if)#
>
>
> ____________
>
>
>
> Look here, this is the debug you should be having at R4 or R5
>
> *Mar 4 19:49:03.027: Vi1 PPP: Authorization required
> *Mar 4 19:49:03.047: Vi1 PPP: No authorization without authentication
> *Mar 4 19:49:03.063: Vi1 CHAP: I CHALLENGE id 15 len 23 from "R3"
> *Mar 4 19:49:03.063: Vi1 CHAP: Using hostname from unknown source
> *Mar 4 19:49:03.063: Vi1 CHAP: Using password from interface CHAP
> *Mar 4 19:49:03.067: Vi1 CHAP: O RESPONSE id 15 len 23 from "R2"
> *Mar 4 19:49:03.087: Vi1 CHAP: I FAILURE id 15 len 25 msg is
> "Authentication failed"
>
> You can fix this using this
>
>
>
> R3(config)#do show run int virtual-template 1
> Building configuration...
>
> Current configuration : 128 bytes
> !
> interface Virtual-Template1
> ip address 158.1.0.3 255.255.255.0
> ppp authentication pap chap
> ppp chap hostname Rack1R3
> end
>
> R2(config-if)#do show run int virtual-templa 1
> Building configuration...
>
> Current configuration : 150 bytes
> !
> interface Virtual-Template1
> ip address 158.1.0.2 255.255.255.0
> no peer neighbor-route
> ppp chap hostname Rack1R2
> ppp chap password 0 CISCO
> end
>
>
>
> or try the Provider WB Solution
>
> HTH
> thanks,
> Victor Cappuccio.-
> Network Learning Inc - A Cisco Sponsored Organization (SO) YES! We take
> Cisco Learning credits!
> victor@ccbootcamp.com
> http://www.ccbootcamp.com (Cisco Training and Rental Racks)
> http://www.ccbootcamp.com/groupstudy.html (groupstudy member discounts!)
> Voice: 702-968-5100
> FAX: 702-446-8012
>
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com on behalf of Shamin
> Sent: Sun 3/4/2007 9:37
> To: Ivan
> Cc: Cisco certification
> Subject: Re: EIGRP over PPP over Frame - Problem
>
> Ivan,
>
> Thanks for your reply.
> I tried changing the subnet to 158.1.44.0/24 . But that does not solve the
> issue.
> R5 & R3 are able to ping R4's loopback but R4 does not receive any eigrp
> updates from the hub R3 or the spoke R5. Kind of peculiar situation i am
> in.
> Dont see a reason for this.
>
>
> Regards
> Shameen
>
> On 3/4/07, Ivan <ivan@iip.net> wrote:
> >
> > May be try ip address from another subnet on R4. For instance:
> 158.1.44.4
> > Only suppose.
> >
> >
> >
> > On Sunday 04 March 2007 18:39, Shamin wrote:
> > > Hi,
> > >
> > > I tried that. But the point is, If split horizon is acting then R4's
> > > loopback should not be seen by R5 as well. But R5 is able to ping R4's
> > > loopback.
> > >
> > > Any other thing that can be a issue?
> > >
> > > regards
> > > shamin
> > >
> > > On 3/4/07, Darrin K. Pierce <darrin@dkpierce.com> wrote:
> > > > Try disabling split-horizon on R3.
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of
> > > > Shamin
> > > > Sent: Sunday, March 04, 2007 9:39 AM
> > > > To: Cisco certification
> > > > Subject: EIGRP over PPP over Frame - Problem
> > > >
> > > > Hi all,
> > > >
> > > > Hope your preparations are going good.
> > > >
> > > > I have a peculiar situation running EIGRP over PPPover Frame.
> > > >
> > > >
> > > > R5 ---------- R3 -------------R4
> > > >
> > > >
> > > > R3 is the hub and R4,R5 are the spokes. R3 & R4 are using main
> > > > interfaces. R5 is using a point -to - point interface.
> > > > The PPPoverFrame seems to be working. I can ping spoke to spoke .
> Now
> > > > when i
> > > > enable EIGRP , over this there is a problem that
> > > > R4 is not receiving any Eigrp routes from R3 or R5. I configured
> > Loopback
> > > > 100 on R3 with Ip 3.3.3.3 and advertised it into eigrp.
> > > > R5 seems to be receiving this route where as R4 is not.
> > > > R5 is able to receive the Loopback of R4 where as R4 is not
> receiving
> > the
> > > > R5
> > > > Loopback route.
> > > >
> > > > Can any one help reason why this is happening. The debug commands of
> > > > eigrp is not very helpful in this. I dont think this is a split
> > horizon
> > > > issue as well.
> > > >
> > > > I will post the configuration on each router as below.
> > > >
> > > >
> >
> -------------------------------------------------------------------------
> > > >--- ------------------------
> > > >
> > > > R3#
> > > > username Rack1R4 password 0 CISCO
> > > > username Rack1R5 password 0 CISCO
> > > > !
> > > > !
> > > > !
> > > > !
> > > > interface Loopback100
> > > > ip address 3.3.3.3 255.255.255.0
> > > > !
> > > > interface Serial2/0
> > > > no ip address
> > > > encapsulation frame-relay
> > > > frame-relay interface-dlci 304 ppp Virtual-Template1
> > > > frame-relay interface-dlci 305 ppp Virtual-Template1
> > > >
> > > > !
> > > > interface Virtual-Template1
> > > > ip address 158.1.0.3 255.255.255.0
> > > > ppp authentication pap chap
> > > > !
> > > > router eigrp 10
> > > > network 3.3.3.3 0.0.0.0
> > > > network 158.1.0.3 0.0.0.0
> > > > metric weights 0 1 1 1 0 0
> > > > no auto-summary
> > > > eigrp router-id 150.1.3.3
> > > > !
> > > >
> > > > R3#sh ip route eigrp
> > > > 4.0.0.0/24 is subnetted, 1 subnets
> > > > D 4.4.4.0 [90/2713700] via 158.1.0.4, 00:22:26,
> Virtual-Access1
> > > > 158.1.0.0/16 is variably subnetted, 11 subnets, 2 masks
> > > > D 158.1.5.0/24 [90/2842603] via 158.1.0.5, 00:22:26,
> > > > Virtual-Access2 D 158.1.55.0/24 [90/2842603] via 158.1.0.5,
> > > > 00:22:26,
> > > > Virtual-Access2
> > > > 150.1.0.0/16 is variably subnetted, 6 subnets, 2 masks
> > > > D 150.1.5.0/24 [90/2713700] via 158.1.0.5, 00:22:26,
> > > > Virtual-Access2 D 150.1.4.0/24 [90/2713700] via 158.1.0.4,
> > > > 00:22:26, Virtual-Access1
> > > >
> > > >
> > > >
> >
> -------------------------------------------------------------------------
> > > >--- --------------------------------------------------------
> > > >
> > > > R4#
> > > > username Rack1R3 password 0 CISCO
> > > > !
> > > > !
> > > > interface Loopback0
> > > > ip address 150.1.4.4 255.255.255.0
> > > > !
> > > > interface Loopback100
> > > > ip address 4.4.4.4 255.255.255.0
> > > > !
> > > > interface Serial0/0
> > > > no ip address
> > > > encapsulation frame-relay
> > > > frame-relay interface-dlci 403 ppp Virtual-Template1
> > > > !
> > > > !
> > > > interface Virtual-Template1
> > > > ip address 158.1.0.4 255.255.255.0
> > > > no peer neighbor-route
> > > > !
> > > > router eigrp 10
> > > > network 4.4.4.4 0.0.0.0
> > > > network 150.1.4.4 0.0.0.0
> > > > network 158.1.0.4 0.0.0.0
> > > > network 158.1.45.4 0.0.0.0
> > > > metric weights 0 1 1 1 0 0
> > > > no auto-summary
> > > > eigrp router-id 150.1.4.4
> > > > !
> > > >
> > > >
> > > > R4#sh ip route
> > > >
> > > > Gateway of last resort is not set
> > > >
> > > > C 204.12.1.0/24 is directly connected, Ethernet0/1
> > > > 4.0.0.0/24 is subnetted, 1 subnets
> > > > C 4.4.4.0 is directly connected, Loopback100
> > > > 158.1.0.0/24 is subnetted, 1 subnets
> > > > C 158.1.0.0 is directly connected, Virtual-Access1
> > > > C 192.10.1.0/24 is directly connected, Ethernet0/0
> > > > 150.1.0.0/24 is subnetted, 1 subnets
> > > > C 150.1.4.0 is directly connected, Loopback0
> > > >
> > > >
> > > >
> > > >
> > > >
> >
> -------------------------------------------------------------------------
> > > >--- ----------------------------------------
> > > >
> > > > R5#
> > > > !
> > > > !
> > > > !
> > > > interface Loopback0
> > > > ip address 150.1.5.5 255.255.255.0
> > > > !
> > > > interface Ethernet0/0
> > > > ip address 158.1.5.5 255.255.255.0
> > > > half-duplex
> > > > !
> > > > interface Serial0/0
> > > > no ip address
> > > > encapsulation frame-relay
> > > > !
> > > > interface Serial0/0.1 point-to-point
> > > > frame-relay interface-dlci 503 ppp Virtual-Template1
> > > > !
> > > > interface Ethernet0/1
> > > > ip address 158.1.55.5 255.255.255.0
> > > > half-duplex
> > > > !
> > > > interface Virtual-Template1
> > > > ip address 158.1.0.5 255.255.255.0
> > > > ppp chap password 0 CISCO
> > > > !
> > > > router eigrp 10
> > > > network 150.1.5.5 0.0.0.0
> > > > network 158.1.0.5 0.0.0.0
> > > > network 158.1.5.5 0.0.0.0
> > > > network 158.1.45.5 0.0.0.0
> > > > network 158.1.55.5 0.0.0.0
> > > > metric weights 0 1 1 1 0 0
> > > > no auto-summary
> > > > eigrp router-id 150.1.5.5
> > > > !
> > > >
> > > > R5#sh ip route eigrp
> > > > 3.0.0.0/24 is subnetted, 1 subnets
> > > > D 3.3.3.0 [90/2713700] via 158.1.0.3, 00:36:01,
> Virtual-Access1
> > > > 4.0.0.0/24 is subnetted, 1 subnets
> > > > D 4.4.4.0 [90/5273700] via 158.1.0.3, 00:35:31,
> Virtual-Access1
> > > > 158.1.0.0/16 is variably subnetted, 5 subnets, 2 masks
> > > > D 158.1.0.4/32 [90/5145700] via 158.1.0.3, 00:54:44,
> > > > Virtual-Access1 150.1.0.0/24 is subnetted, 2 subnets
> > > > D 150.1.4.0 [90/5273700] via 158.1.0.3, 00:30:47,
> > Virtual-Access1
> > > >
> > > >
> >
> -------------------------------------------------------------------------
> > > >--- ----------------------------------------------
> > > >
> > > > Your help will be much appreciated. I dont see a reason why after
> > forming
> > > > an
> > > > adjacency between R3 & R4 , the routes are only updated one way
> i.efrom
> > > > R4
> > > > to R3 and R5 but not back.
> > > >
> > > > Regards
> > > > Shameen
> > > >
> > > >
> > _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> > >
> > >
> _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
> >
> > --
> > Ivan
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html



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