From: CCIEin2006 (ciscocciein2006@gmail.com)
Date: Fri May 26 2006 - 09:52:06 ART
The best explanation I can offer is that frame-relay is a multipoint
technology so it has to have mappings to every single destination including
its own interface.
However, if you configure a frame-relay point-to-point subinterface it
behaves much like a regular HDLC circuit. There is only one way to go and
that is out the one single DLCI so no need to have mappings for anything
else.
HTH
On 5/26/06, chris Iannacone <iannaconec@optonline.net> wrote:
>
> why if i have a frame-relay interface configured with no frame-relay
> inverse-arp and a map statement with the broadcast command - repeat on
> side B
> I cant ping my own serial - if router 1 had an ip of 1.2.3.4 and 2
> had 5.6 7.8 both configured on s0 as described above r1 can ping r2s
> serial but not its own??
> I was planning on using a ping trace on the ccie lab to test connectivity
> if anyones curious heres the show run fron R1 and R2
> R2 - without EIGRP its a total no go - no connectivity
> interface FastEthernet0/0
> ip address 137.1.2.2 255.255.255.0
> duplex auto
> speed auto
> !
> interface FastEthernet0/1
> no ip address
> shutdown
> duplex auto
> speed auto
> !
> interface Serial0/0/0
> ip address 137.1.200.2 255.255.255.0
> encapsulation frame-relay
> frame-relay map ip 137.1.200.1 201 broadcast
> no frame-relay inverse-arp
> frame-relay lmi-type cisco
> !
> interface Serial0/1/0
> no ip address
> shutdown
> !
> router eigrp 100
> network 137.1.200.0 0.0.0.255
> no auto-summary
> !
> !
> !
> ip http server
> no ip http secure-server
> !
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
> login
> !
> scheduler allocate 20000 1000
> !
> end
> R1
> r1>ena
> r1#sh run
> Building configuration...
>
> Current configuration : 996 bytes
> !
> version 12.4
> service timestamps debug datetime msec
> service timestamps log datetime msec
> no service password-encryption
> !
> hostname r1
> !
> boot-start-marker
> boot-end-marker
> !
> !
> no aaa new-model
> !
> resource policy
> !
> memory-size iomem 10
> !
> !
> ip cef
> !
> !
> !
> !
> voice-card 0
> no dspfarm
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> interface FastEthernet0/0
> description to vlan 11
> no ip address
> shutdown
> duplex auto
> speed auto
> !
> interface FastEthernet0/1
> no ip address
> shutdown
> duplex auto
> speed auto
> !
> interface Serial0/0/0
> ip address 137.1.200.1 255.255.255.0
> encapsulation frame-relay
> frame-relay map ip 137.1.200.2 102 broadcast
> no frame-relay inverse-arp
> !
> interface Serial0/1/0
> no ip address
> shutdown
> clock rate 2000000
> !
> router eigrp 100
> network 137.1.1.0 0.0.0.255
> network 137.1.200.0 0.0.0.255
> no auto-summary
> !
> !
> !
> ip http server
> no ip http secure-server
> !
> !
> !
> !
> !
> control-plane
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> line con 0
> line aux 0
> line vty 0 4
> login
> !
> scheduler allocate 20000 1000
> !
> end
>
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This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:22 ART