From: Sydney Hawke (sydneyhawke@yahoo.com)
Date: Thu May 10 2007 - 13:15:20 ART
Hi,
I seem to miss somethng regarding EIGRP, GRE Tunnels, static route
I have been testing EIGRP over a plain GRE tunnel and used static routes for the destination networks of the tunnel.
I tried to have a static route like this (over a frame-relay cloud):
ip route 150.1.2.0 255.255.255.0 191.1.125.2
No problem and the tunnel interface do not have any output drops and here are the details for the eigrp neighbor:
ROUTER5#sh ip eigrp neig detail
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 25.25.25.2 Tu25 13 00:02:12 126 5000 0 118
Version 12.4/1.2, Retrans: 9, Retries: 0, Prefixes: 2
ROUTER5#
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
This is the problem scenario and I do not understand what the problem is when
I use a static route with the interface as the next-hop???
Then I tried to use a static route like this:
ip route 150.1.2.0 255.255.255.0 ser 0/0
ROUTER5#sh ip eigrp neig detail
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 25.25.25.2 Tu25 11 00:01:18 1 5000 1 0
Version 12.4/1.2, Retrans: 16, Retries: 16, Waiting for Init, Waiting for Init Ack
UPDATE seq 175 ser 0-0 Sent 78332 Init Sequenced
ROUTER5#
*Mar 3 01:32:40.626: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 25.25.25.2 (Tunnel25) is down: retry limit exceeded
ROUTER5#sh ip eigrp neig detail
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 25.25.25.2 Tu25 14 00:00:00 1 2000 1 0
Version 12.4/1.2, Retrans: 0, Retries: 0, Waiting for Init, Waiting for Init Ack
UPDATE seq 177 ser 0-0 Sent 384 Init Sequenced
ROUTER5#
*Mar 3 01:32:44.994: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor 25.25.25.2 (Tunnel25) is up: new adjacency
ROUTER5#
And here are the output drops for the tunnel interface after I applied the static route with an interface as the next-hop:
ROUTER5#sh int tun 25
Tunnel25 is up, line protocol is up
Hardware is Tunnel
Internet address is 25.25.25.5/24
MTU 1514 bytes, BW 9 Kbit, DLY 500000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation TUNNEL, loopback not set
Keepalive not set
Tunnel source 150.1.5.5 (Loopback0), destination 150.1.2.2
Tunnel protocol/transport GRE/IP
Key disabled, sequencing disabled
Checksumming of packets disabled
Tunnel TTL 255
Fast tunneling enabled
Tunnel transmit bandwidth 8000 (kbps)
Tunnel receive bandwidth 8000 (kbps)
Last input 00:00:00, output 00:00:03, output hang never
Last clearing of "show interface" counters 00:32:06
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 122
Best Regards,
Sydney
This archive was generated by hypermail 2.1.4 : Fri Jun 01 2007 - 06:55:20 ART