I seem to be experiencing a problem with dropped packets. The internal network here is a class A 10.x.x.x scheme which is then connected to a class C colocations on a 156.x.x.x scheme. The ethernet side of the router on the class A network is 10.111.111.111 the serial side is 172.16.1.1. On the router at the colocation the IP is 156.0.0.1 and the serial is 172.16.1.2.
If I ping with a packet size as low as 500 I get intermittent drops whether I'm pinging from the class A to the class C network or vice versa. Some times it even drops packets with the default packet size of 32. I checked my routes but am still unable to figure out the issue. Here is the setup on the router at the class A side followed by the Class C side config.
Using 652 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname BourneRouter
!
enable secret
!
ip subnet-zero
!
!
!
!
!
!
interface Ethernet0/0
ip address 10.111.111.111 255.0.0.0
full-duplex
!
interface Serial0/0
ip address 172.16.1.1 255.255.255.252
!
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.1.2
ip http server
ip pim bidir-enable
!
snmp-server community mrtg RO
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password
login
!
no scheduler allocate
end
-----------------------------------------------------
Using 1387 out of 29688 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname MarlboroughRouter
!
enable secret
!
ip subnet-zero
!
!
!
!
!
!
interface Ethernet0/0
ip address 156.0.0.1 255.255.255.0
full-duplex
!
interface Serial0/0
ip address 172.16.1.2 255.255.255.252
ip accounting output-packets
half-duplex
!
ip classless
ip route 0.0.0.0 0.0.0.0 156.0.0.201
ip route 10.0.0.0 255.0.0.0 172.16.1.1
ip http server
ip pim bidir-enable
!
access-list 90 permit 10.5.5.6
access-list 90 permit 10.111.111.111
access-list 90 permit 172.16.1.1
access-list 90 permit 172.16.1.2
snmp-server community mrtg RW 90
snmp-server community public RO
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps isdn call-information
snmp-server enable traps isdn layer2
snmp-server enable traps isdn chan-not-avail
snmp-server enable traps hsrp
snmp-server enable traps config
snmp-server enable traps entity
snmp-server enable traps envmon
snmp-server enable traps bgp
snmp-server enable traps ipmulticast
snmp-server enable traps msdp
snmp-server enable traps rsvp
snmp-server enable traps frame-relay
snmp-server enable traps rtr
snmp-server enable traps syslog
!
line con 0
exec-timeout 0 0
line aux 0
line vty 0 4
password
login
!
no scheduler allocate
end
