RE: X25 ping own serial interface

From: Chuah Eng Wee (chuahew@xxxxxxxxxxxxxxx)
Date: Fri Jul 09 1999 - 09:12:48 GMT-3


   
I would interpret as we need to be able to ping all interfaces, thus we need
map statements. Unless otherwise stated.

Rgds
Eng Wee

At 10:51 09/07/99 +0100, Derek Fage wrote:
>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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