From: Derek Fage (DerekF@xxxxxxxxxxx)
Date: Fri Jul 09 1999 - 06:51:53 GMT-3
This raises an interesting question (as F/R has the same issues with map
statements).
If in the lab you have a statement that all routers must be able to ping all
interfaces, does that mean that you need to create map statements for your
own interface and also have map statements on the spoke routers in a hub and
spoke environment for the other spoke routers ?
Derek...
> -----Original Message-----
> From: Chuah Eng Wee [SMTP:chuahew@cyberway.com.sg]
> Sent: 09 July 1999 10:41
> To: Vaughan Lee
> Cc: ccielab@groupstudy.com
> Subject: RE: X25 ping own serial interface
>
> Hi Vaughan,
>
> It works !! Thanks a lot !! :)
>
> This is the first time I played with X.25, below are a few more questions
> :
>
> - when u configure win,wout,ips,ops parameters, must the two host's
> pareameters match ??
> Or it is OK as long as the host and the switch parameters match ?? I
> configured them
> differently and it doesn't seem to work.
>
>
> - THe nvc command only allows u to set up to 8 vc per protocol. Let say u
> are asked to
> configure 10 vcs between routers. Is it by setting the ltc, htc ??
>
> I'll read up the documentation again to c if i can understand better.
>
> Thanks
> Eng Wee
>
> 38 days more to go....
>
>
>
>
> At 09:57 09/07/99 +0100, Vaughan Lee wrote:
> >I'm not too sure which bits of the config you've missed out - is
> >172.16.10.2 the remote ip address or your local address? Anyway, making
> >a few assumptions, this is how to do it.
> >
> >The basic technique is to bounce the packet off a remote host, there is
> >no way to ping your own interface directly. There is also the problem
> >that by default you can only have one vc per protocol between two hosts,
> >and using this method requires 2 vcs - one for the outbound trip and one
> >for the return! This can be changed with the nvc command. So......
> >
> >Assuming:
> >local ip address 172.16.10.1 /24
> >a remote ip address 172.16.10.2 /24
> >local x25 address 1234
> >x25 address of remote site 5678
> >
> >The config would be:
> >
> >int s0
> >ip address 172.16.10.1 255.255.255.0
> >x25 address 1234
> >x25 map ip 172.16.10.2 5678 broadcast
> >x25 map ip 172.16.10.1 5678 broadcast
> >x25 nvc 2
> >
> >with appropriate coding of nvc and maps at the remote host. A ping to
> >172.16.10.1 would then be sent via 172.16.10.2 and would work!
> >
> >Hope this helps.
> >
> >Regards,
> >Vaughan
> >
> >Vaughan Lee, Network Specialist.
> >debis IT Services (UK) Ltd.
> >E-mail: vaughan.lee@debis.co.uk
> >Direct Phone: 01908 279561
> >Direct Fax: 01908 279061
> >http://www.debis.co.uk/
> >
> >
> >
> >-----Original Message-----
> >From: Chuah Eng Wee [mailto:chuahew@cyberway.com.sg]
> >Sent: 09 July 1999 07:34
> >To: ccielab@groupstudy.com
> >Subject: X25 ping own serial interface
> >
> >
> >Hi...
> >
> >How can I configure x25 so that I can ping my own serial interface.
> >I can ping the remote interface, but not my own.
> >
> >I have tried
> >
> >int s0
> >x25 address 5678
> >x25 map ip 172.16.10.2 5678 broadcast
> >
> >but it doesn't work
> >
> >Any hints ??
> >
> >Eng Wee
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