From: Mike Johnson (dredeze@hotmail.com)
Date: Mon Mar 17 2003 - 17:20:18 GMT-3
Eric when using the default-originate command within BGP u don't need to
add static route. Your router might be crashing because of the
following, when you point to an interface instead of a network, when
using a static route, the router sends ARP request for everything
connected.
Adding a static route to an Ethernet or other broadcast interface (for
example, ip route 0.0.0.0 0.0.0.0 Ethernet 1/2) will cause the route to
be inserted into the routing table only when the interface is up. This
configuration is not generally recommended. When the next hop of a
static route points to an interface, the router considers each of the
hosts within the range of the route to be directly connected through
that interface, and therefore it will send ARP requests to any
destination addresses that route through the static route.
The practical implication of configuring "ip route 0.0.0.0 0.0.0.0
Ethernet 1/2" is that the router will consider all of the destinations
that the router does not know how to reach through some other route as
directly connected to Ethernet 1/2. So the router will send an ARP
request for each host for which it receives packets on this network
segment. This configuration can cause high processor utilization and a
very large ARP cache (along with attendant memory allocation failures).
Configuring a default route or other static route that directs the
router to forward packets for a large range of destinations to a
connected broadcast network segment can cause your router to reload.
http://cco-rtp-1.cisco.com/en/US/products/sw/iosswrel/ps1835/products_co
mmand_reference_chapter09186a00800ca75a.html#1018065
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
eric
Sent: Saturday, March 15, 2003 11:29 PM
To: Ccielab
Subject: bgp defualt-origiinate
Hello all
2 things
the first being every time I try to send a default route to a nei
r1(config)#ip route 0.0.0.0 0.0.0.0 e1
r1(config-router)#redist stat
r1(config-router)#redist static
r1(config-router)#neigh 150.4.1.8 default-originate
it crashs my router, now this does not seem like the right thing to be
happening. it is a 2500 but fully loaded
any ideas ??
2.
Does anyone know where the regular-expressions are on the cd under 12.1
I found em under 12.2 not sure if that is going to be available to me in
the
lab. I have searched high and low on the 12.1 cant find em.
Regards,
~e
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