ICMP is not working

[sam19800816]

Hi all,

There is a weird issue , its not working with ping between 7206 and 3550
its unable to ping all interface ip each other between 7206 and 3550 , but telnet interface ip is working
the arp mac is also correct , anything looks all right but icmp.


below is topology and config about interface

7206:

interface FastEthernet1/0
ip address 192.168.1.2 255.255.255.252
end

interface FastEthernet1/0.501
encapsulation dot1Q 10
ip address 172.16.1.2 255.255.255.252

3550:

interface FastEthernet0/24
switchport trunk encapsulation dot1q
switchport mode trunk

interface Vlan1
ip address 192.168.1.1 255.255.255.252
!
interface Vlan10
ip address 172.16.1.1 255.255.255.252

[chsarkar]

Hey Sam-

Could you create an ACL in 3550 switch and debug that. See below :

access-list 199 permit ip host 172.16.1.2 host 172.16.1.1

access-list 199 permit ip host 172.16.1.1 host 172.16.1.2

Then apply " debug ip packet 199 " and see if icmp pkts reaches the switch or not. Share the output pls.

- Chandan

[sam19800816]

Hi chsarkar,

Here is output info , is anything wrong ? ~thanks

*Mar 2 06:47:08.830: IP: s=172.16.1.1 (local), d=172.16.1.2, len 100, local feature, Clustering(7), rtype 0, forus FALSE, sendself FALSE, mtu 0
*Mar 2 06:47:08.830: IP: tableid=0, s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), routed via FIB
*Mar 2 06:47:08.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending
*Mar 2 06:47:08.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending full packet
*Mar 2 06:47:10.830: IP: s=172.16.1.1 (local), d=172.16.1.2, len 100, local feature, Clustering(7), rtype 0, forus FALSE, sendself FALSE, mtu 0
*Mar 2 06:47:10.830: IP: tableid=0, s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), routed via FIB
*Mar 2 06:47:10.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending
*Mar 2 06:47:10.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending full packet
*Mar 2 06:47:12.830: IP: s=172.16.1.1 (local), d=172.16.1.2, len 100, local feature, Clustering(7), rtype 0, forus FALSE, sendself FALSE, mtu 0
*Mar 2 06:47:12.830: IP: tableid=0, s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), routed via FIB
*Mar 2 06:47:12.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending
*Mar 2 06:47:12.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending full packet
*Mar 2 06:47:14.830: IP: s=172.16.1.1 (local), d=172.16.1.2, len 100, local feature, Clustering(7), rtype 0, forus FALSE, sendself FALSE, mtu 0
*Mar 2 06:47:14.830: IP: tableid=0, s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), routed via FIB
*Mar 2 06:47:14.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending
*Mar 2 06:47:14.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending full packet
*Mar 2 06:47:16.830: IP: s=172.16.1.1 (local), d=172.16.1.2, len 100, local feature, Clustering(7), rtype 0, forus FALSE, sendself FALSE, mtu 0
*Mar 2 06:47:16.830: IP: tableid=0, s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), routed via FIB
*Mar 2 06:47:16.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending
*Mar 2 06:47:16.830: IP: s=172.16.1.1 (local), d=172.16.1.2 (Vlan501), len 100, sending full packet