Re: Frame-Relay self ping on PPP

use peer neighbor-route under virtual-template and clear ip route *

Sent from Cochin, KL, India

On Mon, Aug 24, 2009 at 3:42 PM, Divin Mathew John <divinjohn_at_gmail.com>wrote:

> Hey..
>
> I just labbed it up.. and there's a /32 route automatically ijected by PPP
>
> this is my running config
>
> R3
>
> interface Loopback0
> ip address 3.3.3.3 255.255.255.0
> !
> interface Serial0/0
> no ip address
> encapsulation frame-relay
> serial restart-delay 0
> frame-relay lmi-type ansi
> !
> interface Serial0/0.34 point-to-point
> frame-relay interface-dlci 203 ppp Virtual-Template1
> !
> interface Serial0/1
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Serial0/2
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Serial0/3
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Virtual-Template1
> ip unnumbered Loopback0
> !
> ip http server
> no ip http secure-server
> !
> R3#sh 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
>
> 3.0.0.0/24 is subnetted, 1 subnets
> C 3.3.3.0 is directly connected, Loopback0
> 4.0.0.0/32 is subnetted, 1 subnets
> C 4.4.4.4 is directly connected, Virtual-Access3
>
> R4
> interface Loopback0
> ip address 4.4.4.4 255.255.255.0
> !
> interface Serial0/0
> no ip address
> encapsulation frame-relay
> serial restart-delay 0
> frame-relay lmi-type ansi
> !
> interface Serial0/0.34 point-to-point
> frame-relay interface-dlci 302 ppp Virtual-Template1
> !
> interface Serial0/1
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Serial0/2
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Serial0/3
> no ip address
> shutdown
> serial restart-delay 0
> !
> interface Virtual-Template1
> ip unnumbered Loopback0
> !
> ip http server
>
> R4#sh 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
>
> 3.0.0.0/32 is subnetted, 1 subnets
> C 3.3.3.3 is directly connected, Virtual-Access3
> 4.0.0.0/24 is subnetted, 1 subnets
> C 4.4.4.0 is directly connected, Loopback0
> R4#
>
> R4#p 3.3.3.3
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 4/20/56 ms
> R4#
>
> Sent from Cochin, KL, India
>
> On Mon, Aug 24, 2009 at 3:08 PM, Roy Waterman <roy.waterman_at_gmail.com>wrote:
>
>> Doh!.
>> Cheers Divin :)
>>
>> It has to be a static route that is more specific than the directly
>> connected lo0.
>> I guess I frown upon using static routes for solutions :)
>>
>> Is there another way of getting this work without statics?
>>
>> 2009/8/24 Divin Mathew John <divinjohn_at_gmail.com>
>>
>> use a sttatic route out the interface for R4's Loopback>!
>>>
>>> On Mon, Aug 24, 2009 at 2:56 PM, Roy Waterman <roy.waterman_at_gmail.com>wrote:
>>>
>>>> Hey Joe
>>>> This is great.
>>>> Could you explain why self ping works using mlpppofr as opposed to
>>>> pppofr?
>>>> Is there some logical reason for it?
>>>> Also, could you also explain the ip numbered lo0 serial solution?
>>>> Pinging
>>>> your own ip is no problem with this, but pinging the other end of the
>>>> link
>>>> results in...issues.
>>>>
>>>> In my scenario:
>>>>
>>>> lo0 --- R3 s0/0.34 ---------------s0/0.43 R4 --- lo0
>>>>
>>>> R3
>>>> int s0/0.34 p
>>>> ip unnumbered lo0
>>>> frame int 304
>>>> int lo0
>>>> ip add 10.1.34.3 255.255.255.0
>>>>
>>>> R4
>>>> int s0/0.43 p
>>>> ip unnumbered lo0
>>>> frame int 403
>>>> int lo0
>>>> ip add 10.1.34.4 255.255.255.0
>>>>
>>>> R3 can self ping but cannot ping R4, as 10.1.34.4 points to lo0...
>>>>
>>>> R3#ping 10.1.34.3
>>>>
>>>> Type escape sequence to abort.
>>>> Sending 5, 100-byte ICMP Echos to 10.1.34.3, timeout is 2 seconds:
>>>> !!!!!
>>>> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
>>>> R3#ping 10.1.34.4
>>>>
>>>> Type escape sequence to abort.
>>>> Sending 5, 100-byte ICMP Echos to 10.1.34.4, timeout is 2 seconds:
>>>> .....
>>>> Success rate is 0 percent (0/5)
>>>>
>>>> R3#sh ip ro 10.1.34.4
>>>> Routing entry for 10.1.34.0/24
>>>> Known via "connected", distance 0, metric 0 (connected, via interface)
>>>> Routing Descriptor Blocks:
>>>> * directly connected, via Loopback0
>>>> Route metric is 0, traffic share count is 1
>>>>
>>>>
>>>> Could you show how you managed to get around this?
>>>>
>>>> Cheers man.
>>>>
>>>>
>>>>
>>>> 2009/8/24 Joe Astorino <jastorino_at_ipexpert.com>
>>>>
>>>> > You need either ppp multilink over frame or setup ip unnumbered and
>>>> point
>>>> > it to a loopback
>>>> >
>>>> >
>>>> > ------Original Message------
>>>> > From: Sameer Khurana
>>>> > Sender: nobody_at_groupstudy.com
>>>> > To: CCIE Groupstudy
>>>> > ReplyTo: Sameer Khurana
>>>> > Subject: Frame-Relay self ping on PPP
>>>> > Sent: Aug 23, 2009 10:55 PM
>>>> >
>>>> > Hi Group,
>>>> >
>>>> > If there is a P2P serial connections, for example:
>>>> >
>>>> > R1:
>>>> > ===
>>>> > S1:
>>>> > en fr
>>>> > no fram inv
>>>> > !
>>>> > int S1.1 po
>>>> > fram interface-dlci 102 ppp virtual-tem 1
>>>> > !
>>>> > int virtual-tem 1
>>>> > ip add 1.1.1.1 255.255.255.0
>>>> >
>>>> >
>>>> > R2:
>>>> > ===
>>>> > S1:
>>>> > en fr
>>>> > no fram inv
>>>> > !
>>>> > int S1.1 po
>>>> > fram interface-dlci 201 ppp virtual-tem 1
>>>> > !
>>>> > int virtual-tem 1
>>>> > ip add 1.1.1.2 255.255.255.0
>>>> >
>>>> > If we have to do self ping our own serial interfaces then what we need
>>>> to
>>>> > do? Means... R1 should ping its own 1.1.1.1 and R2 should ping
>>>> 1.1.1.2.
>>>> >
>>>> > Thanks,
>>>> > Sameer
>>>> >
>>>> >
>>>> > Blogs and organic groups at http://www.ccie.net
>>>> >
>>>> >
>>>> _______________________________________________________________________
>>>> > Subscription information may be found at:
>>>> > http://www.groupstudy.com/list/CCIELab.html
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > Regards,
>>>> >
>>>> > Joe Astorino - CCIE #24347 R&S
>>>> > Technical Instructor - IPexpert, Inc.
>>>> > Cell: +1.586.212.6107
>>>> > Fax: +1.810.454.0130
>>>> > Mailto: jastorino_at_ipexpert.com
>>>> >
>>>> >
>>>> > Blogs and organic groups at http://www.ccie.net
>>>> >
>>>> >
>>>> _______________________________________________________________________
>>>> > Subscription information may be found at:
>>>> > http://www.groupstudy.com/list/CCIELab.html
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>>
>>>>
>>>> --
>>>> Regards
>>>> Roy
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
>>>> _______________________________________________________________________
>>>> Subscription information may be found at:
>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>
>>
>> --
>> Regards
>> Roy

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Received on Mon Aug 24 2009 - 15:47:00 ART