01-05-2003 06:55 PM - edited 03-02-2019 03:56 AM
1. I ping 10.0.20.253 with source address 10.1.10.240,result is !U!.!
2. I ping 10.0.20.253 with source address 10.1.201.17,result is !U!.!
~~~~~~
3. I ping 10.0.20.253 with source address 10.1.201.18,result is !!!!!.
~~~~~~
4. two msfcs for each 6509,so 10.1.10.250 and 10.1.10.251 belong to 6509a,10.1.10.252 and 10.1.10.254 belong to 6509b.And 10.x.x.253 is
HSRP virtual IP
5. HSRP was implemented with four msfc
I can't understand,routing is seem normal.And there isn't any ACL special for 10.1.201.17 or 10.1.201.18.
But why ping with source 10.1.201.17 can't success,and ping with source 10.1.201.18 can success?
topo is like this:
6509a-----(trunk)------6509b
|
(GE VLAN 10)
|
|
|G1/1 10.1.10.240
7600
|10.1.201.17
|
|(2M sdh 10.1.201.16/30)
|
|
|10.1.201.18
2600
7600:
cisco76#sh ip route 10.0.20.253
Routing entry for 10.0.0.0/12
Known via "eigrp 20", distance 90, metric 28416, type internal
Redistributing via eigrp 20
Last update from 10.1.10.254 on GigabitEthernet1/1, 00:05:19 ago
Routing Descriptor Blocks:
10.1.10.251, from 10.1.10.251, 00:05:19 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
10.1.10.252, from 10.1.10.252, 00:05:19 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
10.1.10.254, from 10.1.10.254, 00:05:19 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
10.1.10.250, from 10.1.10.250, 00:05:19 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco76#sh ip route 10.1.201.16
Routing entry for 10.1.201.16/30
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 20
Routing Descriptor Blocks:
* directly connected, via Serial2/0/0.1/2/1/1:1
Route metric is 0, traffic share count is 1
cisco76#ping 10.0.20.253
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.253, timeout is 2 seconds:
!U!.!
Success rate is 60 percent (3/5), round-trip min/avg/max = 1/1/1 ms
cisco76#ping 10.0.20.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.254, timeout is 2 seconds:
U!.!U
Success rate is 40 percent (2/5), round-trip min/avg/max = 1/1/1 ms
cisco76#ping 10.0.20.252
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.252, timeout is 2 seconds:
U!.U!
Success rate is 40 percent (2/5), round-trip min/avg/max = 1/1/1 ms
cisco76#ping 10.0.20.251
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.251, timeout is 2 seconds:
U!.UU
Success rate is 20 percent (1/5), round-trip min/avg/max = 1/1/1 ms
cisco76#ping 10.0.20.250
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.250, timeout is 2 seconds:
UU.UU
Success rate is 0 percent (0/5)
cisco76#ping
Protocol [ip]:
Target IP address: 10.0.20.253
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 10.1.201.17
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.253, timeout is 2 seconds:
UU.U!
Success rate is 20 percent (1/5), round-trip min/avg/max = 1/1/1 ms
6509b:
!
interface Vlan20
ip address 10.0.20.252 255.255.255.0
ip access-group 120 out
no ip redirects
mls rp vtp-domain CMBDNB
mls rp ip
standby 20 priority 150 preempt
standby 20 ip 10.0.20.253
!
interface Vlan10
ip address 10.1.10.252 255.255.255.0
no ip redirects
ip summary-address eigrp 20 10.0.0.0 255.240.0.0 5
mls rp vtp-domain xxx
mls rp ip
standby 10 priority 150 preempt
standby 10 ip 10.1.10.253
!
6509b#sh access-list 120
Extended IP access list 120
permit ip host 10.0.78.1 host 10.0.20.64
permit ip host 10.0.79.1 host 10.0.20.15
6509b#sh standby brief
P indicates configured to preempt.
|
Interface Grp Prio P State Active addr Standby addr Group addr
Vlan10 10 150 P Standby 10.1.10.250 local 10.1.10.253
Vlan20 20 150 P Standby 10.0.20.250 local 10.0.20.253
6509b#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 9, eigrp 20
Last update from 10.1.10.240 on Vlan10, 2d17h ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 2d17h ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
2600:
cisco26#sh ip route 10.0.20.253
Routing entry for 10.0.0.0/12
Known via "eigrp 20", distance 90, metric 1805056, type internal
Redistributing via eigrp 20
Last update from 10.1.201.17 on Serial1/1:0, 2d05h ago
Routing Descriptor Blocks:
* 10.1.201.17, from 10.1.201.17, 2d05h ago, via Serial1/1:0
Route metric is 1805056, traffic share count is 1
Total delay is 20110 microseconds, minimum bandwidth is 1984 Kbit
Reliability 252/255, minimum MTU 1500 bytes
Loading 1/255, Hops 2
cisco26#ping
Protocol [ip]:
Target IP address: 10.0.20.253
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 10.1.201.18
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.253, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/40/40 ms
cisco76#sh ip prot
Routing Protocol is "eigrp 20"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 20
Automatic network summarization is not in effect
cisco76#ping
Protocol [ip]:
Target IP address: 10.0.20.253
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 10.1.201.17
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]: r
Number of hops [ 9 ]:
Loose, Strict, Record, Timestamp, Verbose[RV]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.253, timeout is 2 seconds:
Packet has IP options: Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Unreachable from 10.1.10.251. Received packet has options
Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Unreachable from 10.1.10.254. Received packet has options
Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Request 2 timed out
Unreachable from 10.1.10.254. Received packet has options
Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Unreachable from 10.1.10.251. Received packet has options
Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Success rate is 0 percent (0/5)
cisco76#sh ip int
GigabitEthernet1/1 is up, line protocol is up
Internet address is 10.1.10.240/24
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.10
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is disabled
IP Flow switching is disabled
IP CEF switching is enabled
IP Fast switching turbo vector
IP Normal CEF switching turbo vector
IP multicast fast switching is enabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, CEF
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
WCCP Redirect outbound is disabled
WCCP Redirect exclude is disabled
BGP Policy Mapping is disabled
IP multicast multilayer switching is disabled
Serial2/0/0.1/2/1/1:1 is up, line protocol is up
Internet address is 10.1.201.17/30
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.10
Outgoing access list is not set
Inbound access list is not set
Proxy ARP is enabled
Local Proxy ARP is disabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is enabled
IP Flow switching is disabled
IP CEF switching is enabled
IP Distributed switching is enabled
IP Fast switching turbo vector
IP Normal CEF switching turbo vector
IP multicast fast switching is disabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast, Distributed, CEF, CWAN
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
WCCP Redirect outbound is disabled
WCCP Redirect exclude is disabled
BGP Policy Mapping is disabled
IP multicast multilayer switching is disabled
cisco76#sh run
!
interface Serial2/0/0.1/2/1/1:1
bandwidth 1983
ip address 10.1.201.17 255.255.255.252
ip summary-address eigrp 20 10.1.201.0 255.255.255.0 5
logging event link-status
no fair-queue
!
cisco26#sh ip prot
Routing Protocol is "eigrp 20"
Outgoing update filter list for all interfaces is
Incoming update filter list for all interfaces is
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 4
Redistributing: eigrp 20
Automatic network summarization is in effect
Automatic address summarization:
Address Summarization:
10.90.0.0/16 for Serial1/1:0
Summarizing with metric 281600
Routing for Networks:
10.0.0.0
cisco26#ping
Protocol [ip]:
Target IP address: 10.0.20.253
Repeat count [5]:
Datagram size [100]:
Timeout in seconds [2]:
Extended commands [n]: y
Source address or interface: 10.1.201.18
Type of service [0]:
Set DF bit in IP header? [no]:
Validate reply data? [no]:
Data pattern [0xABCD]:
Loose, Strict, Record, Timestamp, Verbose[none]: r
Number of hops [ 9 ]:
Loose, Strict, Record, Timestamp, Verbose[RV]:
Sweep range of sizes [n]:
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.20.253, timeout is 2 seconds:
Packet has IP options: Total option bytes= 39, padded length=40
Record route: <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
Request 0 timed out
Reply to request 1 (40 ms). Received packet has options
Total option bytes= 40, padded length=40
Record route:
(10.1.201.18)
(10.1.10.240)
(10.0.20.250)
(10.1.10.250)
(10.1.201.17)
(10.1.201.18) <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
End of list
Request 2 timed out
Request 3 timed out
Reply to request 4 (40 ms). Received packet has options
Total option bytes= 40, padded length=40
Record route:
(10.1.201.18)
(10.1.10.240)
(10.0.20.250)
(10.1.10.250)
(10.1.201.17)
(10.1.201.18) <*>
(0.0.0.0)
(0.0.0.0)
(0.0.0.0)
End of list
Success rate is 40 percent (2/5), round-trip min/avg/max = 40/40/40 ms
cisco26#sh ip int
Serial1/1:0 is up, line protocol is up
Internet address is 10.1.201.18/30
Broadcast address is 255.255.255.255
Address determined by non-volatile memory
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
Multicast reserved groups joined: 224.0.0.10
Outgoing access list is not set
Inbound access list is 20
Proxy ARP is enabled
Security level is default
Split horizon is enabled
ICMP redirects are always sent
ICMP unreachables are always sent
ICMP mask replies are never sent
IP fast switching is enabled
IP fast switching on the same interface is enabled
IP Flow switching is disabled
IP Feature Fast switching turbo vector
IP multicast fast switching is disabled
IP multicast distributed fast switching is disabled
IP route-cache flags are Fast
Router Discovery is disabled
IP output packet accounting is disabled
IP access violation accounting is disabled
TCP/IP header compression is disabled
RTP/IP header compression is disabled
Probe proxy name replies are disabled
Policy routing is disabled
Network address translation is disabled
WCCP Redirect outbound is disabled
WCCP Redirect exclude is disabled
BGP Policy Mapping is disabled
cisco26#sh run
!
interface Serial1/1:0
ip address 10.1.201.18 255.255.255.252
ip summary-address eigrp 20 10.90.0.0 255.255.0.0 5
!
01-05-2003 08:08 PM
It is tuff to say. You have a lot of info but I need a little more.
It sounds like a route summarization issue.
I noticed this
cisco76#sh ip route 10.0.20.253
Routing entry for 10.0.0.0/12
Known via "eigrp 20", distance 90, metric 28416, type internal
Redistributing via eigrp 20
which is a /12 and you have other 10.x's which are directly connected that fall into the same network.
I would do a sh ip route in addition to "sh ip route 10.0.20.253" on all four msfc's, then do the same on the next hop router and so on until you reach your destination. Remeber to not only look and the destination, but also a way back.
If you post it or E-mail it I can take a look.
EIGRP will summerize by default.
My first best guess without knowing your network is that the auto summerization somewhere is causing your problems, especially if you have multiple paths.
Good luck
01-06-2003 07:24 PM
thanks for your help!
My company's network topo is like this:
( cisco6501 cisco6502)
|
trunk
|
(cisco6503 cisco6504)----vlan 10---cisco76--10.1.201.x/30--cisco26(branch)
(10.0.0.0/12) (10.x.x.x)
cisco6501 and cisco6502 is 6509a's two msfcs
cisco6503 and cisco6504 is 6509b's two msfcs
cisco6501#sh ip route 10.0.20.253
Routing entry for 10.0.20.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 1, eigrp 20
Routing Descriptor Blocks:
* directly connected, via Vlan20
Route metric is 0, traffic share count is 1
cisco6501#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:13:54 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:13:54 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6501#sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:13:56 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:13:56 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6502#sh ip route 10.0.20.253
Routing entry for 10.0.20.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 1, eigrp 20
Routing Descriptor Blocks:
* directly connected, via Vlan20
Route metric is 0, traffic share count is 1
cisco6502#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:14:28 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:14:28 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6502#sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:14:31 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:14:31 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6503#sh ip route 10.0.20.253
Routing entry for 10.0.20.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 1, eigrp 20
Routing Descriptor Blocks:
* directly connected, via Vlan20
Route metric is 0, traffic share count is 1
cisco6503#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:15:18 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:15:18 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6503#sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:15:20 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:15:20 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6504#sh ip route 10.0.20.253
Routing entry for 10.0.20.0/24
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 1, eigrp 20
Routing Descriptor Blocks:
* directly connected, via Vlan20
Route metric is 0, traffic share count is 1
cisco6504#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:16:02 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:16:02 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco6504#sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "eigrp 20", distance 90, metric 1803008, type internal
Redistributing via eigrp 1, eigrp 20
Last update from 10.1.10.240 on Vlan10, 19:16:03 ago
Routing Descriptor Blocks:
* 10.1.10.240, from 10.1.10.240, 19:16:03 ago, via Vlan10
Route metric is 1803008, traffic share count is 1
Total delay is 20010 microseconds, minimum bandwidth is 1983 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco76#sh ip route 10.0.20.253
Routing entry for 10.0.0.0/12
Known via "eigrp 20", distance 90, metric 28416, type internal
Redistributing via eigrp 20
Last update from 10.1.102.250 on GigabitEthernet1/1, 00:11:36 ago
Routing Descriptor Blocks:
10.1.10.251, from 10.1.10.251, 00:11:36 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
* 10.1.10.252, from 10.1.10.252, 00:11:36 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
* 10.1.10.254, from 10.1.10.254, 00:11:36 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
* 10.1.10.250, from 10.1.10.250, 00:11:36 ago, via GigabitEthernet1/1
Route metric is 28416, traffic share count is 1
Total delay is 110 microseconds, minimum bandwidth is 100000 Kbit
Reliability 255/255, minimum MTU 1500 bytes
Loading 1/255, Hops 1
cisco76#sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 20
Routing Descriptor Blocks:
* directly connected, via Serial2/0/0.1/2/1/1:1
Route metric is 0, traffic share count is 1
cisco76#sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 20
Routing Descriptor Blocks:
* directly connected, via Serial2/0/0.1/2/1/1:1
Route metric is 0, traffic share count is 1
cisco26>sh ip route 10.0.20.253
Routing entry for 10.0.0.0/12
Known via "eigrp 20", distance 90, metric 1805056, type internal
Redistributing via eigrp 20
Last update from 10.1.201.17 on Serial1/1:0, 11:41:05 ago
Routing Descriptor Blocks:
* 10.1.201.17, from 10.1.201.17, 11:41:05 ago, via Serial1/1:0
Route metric is 1805056, traffic share count is 1
Total delay is 20110 microseconds, minimum bandwidth is 1984 Kbit
Reliability 252/255, minimum MTU 1500 bytes
Loading 1/255, Hops 2
cisco26>sh ip route 10.1.201.17
Routing entry for 10.1.201.16/30
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 20
Routing Descriptor Blocks:
* directly connected, via Serial1/1:0
Route metric is 0, traffic share count is 1
cisco26>sh ip route 10.1.201.18
Routing entry for 10.1.201.16/30
Known via "connected", distance 0, metric 0 (connected, via interface)
Redistributing via eigrp 20
Routing Descriptor Blocks:
* directly connected, via Serial1/1:0
Route metric is 0, traffic share count is 1
01-08-2003 08:29 AM
Thank you for the info.
I still need a basic show IP route from each router and a sh IP route for a route back from the 7600 and 2600. Sometimes when we are too close to the forest we can't see the trees.
However from the data you posted it seems to me that:
You have your 4 core routers with a 10.0.0.0/12
and your branch office has a 2600 with a routing table of 10.0.0.0/12.
It seems you have two paths. Generally when a ping is consitant with one on one off like you have, you generally have two paths.
One ping goes though one path successfully the next packet takes the other path and is unsuccessful and so on.
With out the rest of the info it still looks to me like a route summarizetion issue having the same network 10.0.0.0/12 in two locations.
Good Luck
01-06-2003 04:31 AM
You are getting a host unreachable back frm 10.1.10.251 & 254. This is most likely due to an access-list. Try removing the ACL and then ping. If you are successful it is definetly the ACL.
You are also getting timeouts. I would look at the route back from 10.0.20.253 . do a sh ip route , If you have more then 1 route back do an extended ping sourcing from each interface. This will help determine which path is bogus.
01-06-2003 08:50 PM
thanks.
But I do not think hte reason is ACL. My ACL deny any include 10.1.201.17 and 10.1.201.18.
01-08-2003 01:40 AM
can anybody help me ?
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