07-17-2008 07:33 PM - edited 03-06-2019 12:16 AM
Hello all, I have been testing a NAT configuration on an old 2651XM router, and for some reason file transfers wont go higher than "0.0-10.2 sec 32.7 MBytes 27.0 Mbits/sec" while all involved network interfaces are 100Mb/s at least, does anybody know why is this happening and how can I solve it? here is the router configuration:
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname techno-router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
ip name-server 192.168.11.1
interface FastEthernet0/0
ip address 192.168.11.201 255.255.255.0 secondary
ip address 192.168.11.202 255.255.255.0 secondary
ip address 192.168.11.203 255.255.255.0 secondary
ip address 192.168.11.200 255.255.255.0
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.57.1 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
!
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.11.1
!
ip dns server
!
no ip http server
no ip http secure-server
ip nat pool nat-pool 192.168.11.200 192.168.11.200 netmask 255.255.255.0
ip nat inside source list 10 pool nat-pool overload
ip nat inside source static tcp 192.168.57.171 22 192.168.11.200 22 extendable
ip nat inside source static 192.168.57.172 192.168.11.201
ip nat inside source static 192.168.57.173 192.168.11.202
ip nat inside source static 192.168.57.174 192.168.11.203
!
access-list 10 permit 192.168.57.0 0.0.0.255
07-17-2008 09:54 PM
Please check whether it is for all systems in the subnet 192.168.57.0 or the problem is only with IP's getting NATted with 192.168.11.200.
Also post the output of "show ip nat statistics"
07-18-2008 02:21 AM
Remove secondary IPs, they are not needed for NAT.
interface FastEthernet0/0
no ip address 192.168.11.201 255.255.255.0 secondary
no ip address 192.168.11.202 255.255.255.0 secondary
no ip address 192.168.11.203 255.255.255.0 secondary
and disable "ip virtual-reassembly"
no ip virtual-reassembly
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