From: Bill Hill (bhill@xxxxxxxxxx)
Date: Sun Mar 10 2002 - 23:28:52 GMT-3
the "ttl" is optional, if you do not specify, it will default to 255 and will j
ust increase the possible diameter of your network, ugly maybe but shouldn't hu
rt anything. (I am sure there are some security guys out there freaking out ri
ght about now!)
-----Original Message-----
From: RSiddappa@NECBNS.com [mailto:RSiddappa@NECBNS.com]
Sent: Sunday, March 10, 2002 9:23 PM
To: Bill Hill; tsabry@houston.sns.slb.com; ccielab@groupstudy.com
Subject: RE: Update-source in EBGP
What will happen If I do nto specify the hops ?
I have seen it taking 255. What effect will it have ?
R.
-----Original Message-----
From: Bill Hill [mailto:bhill@sgdata.com]
Sent: Sunday, March 10, 2002 8:02 PM
To: Tarek Sabry; ccielab@groupstudy.com
Subject: RE: Update-source in EBGP
You can have any IP from one router peer to any other IP of another router
as long as there is a route between the two.
You only require ebgp-multihop if the 2 peer routers IP addresses are not
directly connected using the same linke, ie: 2 physical endpoints. If so,
you count the number of layer-3 hops between the 2 endpoints and use that as
the parameter. And just to state the obvious, ebgp-mutihop is ony used when
you connect different AS's.... ie EBGP, not IBGP.
HTH
-Bill
-----Original Message-----
From: Tarek Sabry [mailto:tsabry@houston.sns.slb.com]
Sent: Sunday, March 10, 2002 8:37 PM
To: ccielab@groupstudy.com
Subject: Update-source in EBGP
Quick question:
Do I have to have symmetrical configs on both sides? Can I have one loopback
on one AS try to peer with th serial on the other AS?
Also do I have to have "ebgp-multihop" whenever I use "update-source lo0"?
Thanks
Tarek
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