From: wing_lam@jossynergy.com
Date: Thu Jul 31 2003 - 22:59:31 GMT-3
Hi all,
But I found that if you haven't got a "self mapping" the IP cannot be ping
only by this router, all others can still ping you (I mean the ping is
comming from the interface other than frame-relay)?
Described as following:
_________________ (Ethernet, 192.168.1.0/24)
| .3 | .6
R1 R6
/\ .5
/ \ (frame relay multipoint, 10.1.2.0/24)
I haven't got mapping in R1's framerelay, I cannot ping 10.1.2.5 in R1,
that's the same as you mentioned.
But in R6, I can ping 10.1.2.5.
Do you guys has the same result? If yes, by same theory, the router should
not know what the DLCI should send for IP address 10.1.2.5 if not mapping
here?
Thx,
BBD (Big Black Dog)
"yu chunyan"
<yuchunyan@hotmai To: syang@bitfone.com, ccielab@groupstudy.com
l.com> cc:
Sent by: Subject: Re: frame map ip: self address?
nobody@groupstudy
.com
08/01/2003 06:04
AM
Please respond to
"yu chunyan"
Hi,
In multipoint interface, if you donot define a map pointing to self ip
address, frame relay donot know which dlci to send the icmp, and will show
"encapsulation failure". In point-to-point interface, There is only one
dlci
over there, frame relay just send the icmp over it. so, even you ping self
ip address, the icmp packet is send to the other end, which will send
response back.
Bin.
>From: "Shawn Yang" <syang@bitfone.com>
>Reply-To: "Shawn Yang" <syang@bitfone.com>
>To: <ccielab@groupstudy.com>
>Subject: frame map ip: self address? Date: Thu, 31 Jul 2003 12:50:24 -0700
>
>Hi, all,
>
>On FR interfaces, we need to map not only the "connected" ip address,
>but also the self ip address, is it right? What's the reason for
>that? I have found that if you don't do that you won't even able to ping
>your own interface.
>
>and this is true only for multipoint interfaces, but not point-to-point.
>
>Thanks for any info!
>
>Shawn
>
>
>
>
>R1 (s0) ------- R2
>
>On R1:
>int s 0
>ip addr 1.1.1.1
>frame map ip 1.1.1.1 102 <---------- without this, you won't able to ping
>1.1.1.1
>frame map ip 2.2.2.2 102 broadcast
>
>
>_______________________________________________________________________
>You are subscribed to the GroupStudy.com CCIE R&S Discussion Group.
>
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Wed Aug 06 2003 - 06:53:00 GMT-3