From: Huan Pham (Huan.Pham@peopletelecom.com.au)
Date: Mon Sep 01 2008 - 03:57:00 ART
Actually, you can clear EIGRP neighboring in conjuntion with debug to
see all routes advertized to neighbors.
debug ip routing, and
debug ip eigrp
clear ip eigrp neighbor
Rack1R1#clear ip ei nei
Rack1R1#
*Mar 1 01:46:02.599: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
155.1.13.3 (Serial0/1) is down: manually cleared
*Mar 1 01:46:02.599: RT: delete route to 155.1.23.0 via 155.1.13.3,
eigrp metric [90/2681856]
*Mar 1 01:46:02.599: RT: SET_LAST_RDB for 155.1.23.0/24
OLD rdb: via 155.1.13.3, Serial0/1
*Mar 1 01:46:02.599: RT: no routes to 155.1.23.0
*Mar 1 01:46:02.599: RT: NET-RED 155.1.23.0/24
*Mar 1 01:46:02.603: RT: delete subnet route to 155.1.23.0/24
*Mar 1 01:46:02.603: RT: NET-RED 155.1.23.0/24
*Mar 1 01:46:02.603: RT: delete route to 150.1.3.0 via 155.1.13.3,
eigrp metric [90/2297856]
*Mar 1 01:46:02.603: RT: SET_LAST_RDB for 150.1.3.0/24
OLD rdb: via 155.1.13.3, Serial0/1
*Mar 1 01:46:02.603: RT: no routes to 150.1.3.0
*Mar 1 01:46:02.607: RT: NET-RED 150.1.3.0/24
Rack1R1#
*Mar 1 01:46:02.607: RT: delete subnet route to 150.1.3.0/24
*Mar 1 01:46:02.607: RT: NET-RED 150.1.3.0/24
*Mar 1 01:46:02.607: RT: delete route to 155.1.37.0 via 155.1.13.3,
eigrp metric [90/2195456]
*Mar 1 01:46:02.607: RT: SET_LAST_RDB for 155.1.37.0/24
OLD rdb: via 155.1.13.3, Serial0/1
*Mar 1 01:46:02.607: RT: no routes to 155.1.37.0
*Mar 1 01:46:02.611: RT: NET-RED 155.1.37.0/24
*Mar 1 01:46:02.611: RT: delete subnet route to 155.1.37.0/24
*Mar 1 01:46:02.611: RT: NET-RED 155.1.37.0/24
Rack1R1#
*Mar 1 01:46:04.875: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
155.1.13.3 (Serial0/1) is up: new adjacency
*Mar 1 01:46:04.911: IP-EIGRP(Default-IP-Routing-Table:100): Processing
incoming UPDATE packet
*Mar 1 01:46:04.915: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.146.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.915: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.146.0/24 metric 28160 - 25600 2560
*Mar 1 01:46:04.915: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.0.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.915: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.0.0/24 metric 2169856 - 1657856 512000
*Mar 1 01:46:04.915: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.13.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.919: IP-EIGRP(Default-IP-Routing-Table:100):
150.1.1.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.919: IP-EIGRP(Default-IP-Routing-Table:100): Int
150.1.1.0/24 metric 128256 - 256 128000
*Mar 1 01:46:04.967: IP-EIGRP(Default
Rack1R1#-IP-Routing-Table:100): Processing incoming UPDATE packet
*Mar 1 01:46:04.967: IP-EIGRP(Default-IP-Routing-Table:100): Int
150.1.3.0/24 M 2297856 - 1657856 640000 SM 128256 - 256 128000
*Mar 1 01:46:04.971: RT: SET_LAST_RDB for 150.1.3.0/24
NEW rdb: via 155.1.13.3
*Mar 1 01:46:04.971: RT: add 150.1.3.0/24 via 155.1.13.3, eigrp metric
[90/2297856]
*Mar 1 01:46:04.971: RT: NET-RED 150.1.3.0/24
*Mar 1 01:46:04.971: IP-EIGRP(Default-IP-Routing-Table:100): route
installed for 150.1.3.0 ()
*Mar 1 01:46:04.971: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.37.0/24 M 2195456 - 1657856 537600 SM 281600 - 256000 25600
*Mar 1 01:46:04.975: RT: SET_LAST_RDB for 155.1.37.0/24
NEW rdb: via 155.1.13.3
*Mar 1 01:46:04.975: RT: add 155.1.37.0/24 via 155.1.13.3, eigrp metric
[90/2195456]
*Mar 1 01:46:04.975: RT: NET-RED 155.1.37.0/24
*Mar 1 01:46:04.975: IP-EIGRP(Default-IP-Routing-Table:100): route
installed for 155.1.37.0 ()
*Mar 1 01:46:04.975: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.0.0/24 M 2681856 - 1657856 1024000 SM 2169856 - 1657856 512000
*Mar 1 01:46:04.979: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.0.0/24 routing table not updated thru 155.1.13.3
*Mar 1 01:46:04.979: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.23.0/24 M 2681856 - 1657856 1024000 SM 2169856 - 1657856 512000
*Mar 1 01:46:04.979: RT: SET_LAST_RDB for 155.1.23.0/24
NEW rdb: via 155.1.13.3
*Mar 1 01:46:04.979: RT: add 155.1.23.0/24 via 155.1.13.3, eigrp metric
[90/2681856]
*Mar 1 01:46:04.979: RT: NET-RED 155.1.23.0/24
*Mar 1 01:46:04.983: IP-EIGRP(Default-IP-Routing-Table:100): route
installed for 155.1.23.0 ()
*Mar 1 01:46:04.983: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.146.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.983: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.146.0/24 metric 28160 - 25600 2560
*Mar 1 01:46:04.983: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.0.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.983: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.0.0/24 metric 2169856 - 1657856 512000
*Mar 1 01:46:04.987: IP-EIGRP(Default-IP-Routing-Table:100):
155.1.13.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.987: IP-EIGRP(Default-IP-Routing-Table:100):
150.1.1.0/24 - do advertise out Serial0/1
*Mar 1 01:46:04.987: IP-EIGRP(Default-IP-Routing-Table:100): Int
150.1.1.0/24 metric 128256 - 256 128000
*Mar 1 01:46:05.035: IP-EIGRP(Default-IP-Routing-Table:100): Processing
incoming UPDATE packet
*Mar 1 01:46:05.035: IP-EIGRP(Default-IP-Routing-Table:100): Int
150.1.3.0/24 M 2297856 - 1657856 640000 SM 128256 - 256 128000
*Mar 1 01:46:05.035: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.37.0/24 M 2195456 - 1657856 537600 SM 281600 - 256000 25600
*Mar 1 01:46:05.039: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.0.0/24 M 2681856 - 1657856 1024000 SM 2169856 - 1657856 512000
*Mar 1 01:46:05.039: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.23.0/24 M 2681856 - 1657856 1024000 SM 2169856 - 1657856 512000
*Mar 1 01:46:05.327: IP-EIGRP(Default-IP-Routing-Table:100): Processing
incoming UPDATE packet
*Mar 1 01:46:05.327: IP-EIGRP(Default-IP-Routing-Table:100): Int
155.1.146.0/24 M 4294967295 - 1657856 4294967295 SM 4294967295 - 1657856
4294967295
*Mar 1 01:46:05.331: IP-EIGRP(Default-IP-Routing-Table:100): Int
150.1.1.0/24 M 4294967295 - 1657856 4294967295 SM 4294967295 - 1657856
4294967295
Rack1R1#
-----Original Message-----
From: Huan Pham
Sent: Monday, 1 September 2008 4:52 PM
To: 'akyccie'; 'ccielab@groupstudy.com'
Subject: RE: Route advertise to eigrp neighbors
Hi,
You can use debug ip routing, and debug ip eigrp (event) to see how
things happening.
Remember that EIGRP is a hybrid protocol, so you will not see a periodic
updates like RIP, but only update as change occurs. If there's a change
to a route, you will see update for that route ONLY, and you do not see
"all routes" that a router sends to a neighbor. Not like RIP!
See below for how router report change for the loopback 150.1.1.0/25 to
its neighbor.
Rack1R1#sb
Interface IP-Address OK? Method Status
Protocol
FastEthernet0/0 155.1.146.1 YES NVRAM up
up
Serial0/0.1 155.1.0.1 YES NVRAM up
up
Serial0/1 155.1.13.1 YES NVRAM up
up
Loopback0 150.1.1.1 YES NVRAM administratively
down down
Rack1R1#
Rack1R1#
Rack1R1#debug ip eigrp
IP-EIGRP Route Events debugging is on
Rack1R1#debug ip routing
IP routing debugging is on
Rack1R1#
Rack1R1#
Rack1R1#
Rack1R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Rack1R1(config)#int lo0
Rack1R1(config-if)#
Rack1R1(config-if)#no shut
Rack1R1(config-if)#
*Mar 1 01:37:32.787: is_up: 1 state: 4 sub state: 1 line: 0 has_route:
False *Mar 1 01:37:32.787: RT: SET_LAST_RDB for 150.1.1.0/24
NEW rdb: is directly connected
*Mar 1 01:37:32.787: RT: add 150.1.1.0/24 via 0.0.0.0, connected metric
[0/0] *Mar 1 01:37:32.791: RT: NET-RED 150.1.1.0/24 *Mar 1
01:37:32.791: RT: interface Loopback0 added to routing table *Mar 1
01:37:32.811: IP-EIGRP(Default-IP-Routing-Table:100): 150.1.1.0/24 - do
advertise out Serial0/1 *Mar 1 01:37:32.811:
IP-EIGRP(Default-IP-Routing-Table:100): Int 150.1.1.0/24 metric 128256 -
256 128000 *Mar 1 01:37:32.855: IP-EIGRP(Default-IP-Routing-Table:100):
Processing incoming UPDATE packet *Mar 1 01:37:32.855:
IP-EIGRP(Default-IP-Routing-Table:100): Int 150.1.1.0/24 M 4294967295 -
1657856 4294967295 SM 4294967295 - 1657856 4294967295 *Mar 1
01:37:34.783: is_up: 1 state: 4 sub state: 1 line: 0 has_route: True
*Mar 1 01:37:35.783: %LINEPROTO-5-UPDOWN: Line protocol on Interface
Loopback0, changed state to up *Mar 1 01:37:35.783: is_up: 1 state: 4
sub state: 1 line: 0 has_route: True
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
akyccie
Sent: Monday, 1 September 2008 4:04 PM
To: ccielab@groupstudy.com
Subject: Route advertise to eigrp neighbors
How to find routes advertised to eigrp neighbors. "debug ip eigrp" show
only the route installed in the routing table.
R1#
*Mar 1 00:11:28.599: IP-EIGRP(Default-IP-Routing-Table:100): route
installed for 10.1.1.4 () *Mar 1 00:11:28.599:
IP-EIGRP(Default-IP-Routing-Table:100): route installed for 10.2.1.0 ()
*Mar 1 00:11:28.599: IP-EIGRP(Default-IP-Routing-Table:100): route
installed for 10.2.3.0 ()
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