I have a 2514 router connected to two ethernet subnets and a serial connected to a frame relay (internet). A real text book example for a small office. E0 is the internal network private addressing and E1 is the subnet with the public addresses.. NAT uses the s0 in overload for the users on E0 and there are some static NATs for outside mail and web to come into the private network. Problem is that I loose connection to the E0, can't ping it or telnet to the router from the inside network. Not sure why, seems to happen when someone does a email out (maybe) or the internal network gets busy (maybe)
Not sure if I should or should not use the extendable command with nat?
Thanks for any help
Todd
Todd.galbreath@integralease.com
Current configuration:
!
version 11.2
no service udp-small-servers
no service tcp-small-servers
!
hostname xxx
!
enable secret
enable password
!
ip nat inside source list 1 interface Serial0 overload
ip nat inside source static 10.10.90.8 67.37.116.130 extendable
ip nat inside source static 10.10.90.7 67.37.116.180 extendable
ip name-server 10.10.90.6
!
interface Ethernet0
ip address 10.10.90.2 255.255.255.0
ip nat inside
no ip mroute-cache
no mop enabled
!
interface Ethernet1
ip address 67.37.116.129 255.255.255.192
ip helper-address 10.10.90.6
no ip mroute-cache
no mop enabled
!
interface Serial0
ip address 67.37.3.22 255.255.255.252
ip nat outside
no ip mroute-cache
encapsulation frame-relay IETF
frame-relay map ip 67.37.3.21 606
frame-relay interface-dlci 606
frame-relay lmi-type ansi
!
interface Serial1
no ip address
no ip mroute-cache
shutdown
!
ip default-gateway 67.37.3.21
no ip classless
ip default-network 0.0.0.0
ip route 0.0.0.0 0.0.0.0 67.37.3.21
ip route 10.10.90.0 255.255.255.0 Ethernet0
ip route 67.37.116.128 255.255.255.192 Ethernet1
access-list 1 permit 10.0.0.0 0.255.255.255
!
!
line con 0
line aux 0
line vty 0 4
password cisco
login
!
end
