10-21-2013 09:33 AM - edited 03-04-2019 09:22 PM
Hi all, I have an 1841 for a test environment and I've been trying to get port translation to work and I just can't get it to work. I can get to the router via Telnet or SSh no problem, but nothing internal. My scrubbed config is below, thanks in advance for any help
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2013.10.21 12:27:30 =~=~=~=~=~=~=~=~=~=~=~=
show run
Building configuration...
Current configuration : 4858 bytes
!
! Last configuration change at 11:23:40 EDT Mon Oct 21 2013 by admin
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SandboxRT1
!
boot-start-marker
boot system flash:c1841-adventerprisek9-mz.151-4.M1.bin
boot-end-marker
!
!
logging buffered 50000
logging console informational
!
aaa new-model
!
!
aaa authentication login default local
aaa authentication enable default none
!
!
!
!
!
aaa session-id common
!
clock timezone EST -5 0
clock summer-time EDT recurring
dot11 syslog
ip source-route
!
!
!
!
!
ip cef
no ip domain lookup
ip domain name entsand.local
ip name-server 4.2.2.2
ip name-server 8.8.8.8
ip inspect name Firewall tcp router-traffic
ip inspect name Firewall udp router-traffic
ip inspect name Firewall icmp router-traffic
login block-for 600 attempts 10 within 5
login delay 5
login on-failure log
login on-success log
no ipv6 cef
!
multilink bundle-name authenticated
!
crypto pki token default removal timeout 0
!
!
!
!
license udi pid CISCO1841 sn FTX1228Y0YA
archive
log config
logging enable
hidekeys
username admin privilege 15 secret 5 $1$zJUp$cENJm525gTb0kxTu6kDMs.
!
redundancy
!
!
ip ssh time-out 60
ip ssh authentication-retries 2
ip ssh version 2
!
!
!
!
!
!
!
interface FastEthernet0/0
description To Internet
ip address x.x.x.x x.x.x.x
ip access-group fwall in
ip nat outside
ip inspect Firewall out
ip virtual-reassembly in
speed 100
full-duplex
!
interface FastEthernet0/1
description To LAN
ip address 172.16.1.2 255.255.255.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list NAT-LIST interface FastEthernet0/0 overload
ip nat inside source static tcp 172.16.1.51 443 interface FastEthernet0/0 443
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip route 172.16.1.0 255.255.255.0 172.16.1.1
!
ip access-list standard ACL_VTY-In
permit x.x.x.x
!
ip access-list extended NAT-LIST
permit ip 172.16.1.0 0.0.0.255 any
ip access-list extended fwall
permit gre any any
permit tcp any any eq telnet
permit tcp any any eq 22
permit udp any any eq isakmp
permit esp any any
--More-- permit tcp any any eq 443
!
logging trap debugging
access-list 1 permit 172.16.1.0 0.0.0.255
!
!
!
!
!
!
!
!
control-plane
!
!
banner exec ^C
!
line con 0
privilege level 15
logging synchronous
line aux 0
line vty 0 4
access-class ACL_VTY-In in
privilege level 15
logging synchronous
transport input telnet
line vty 5 15
access-class ACL_VTY-In in
privilege level 15
logging synchronous
transport input ssh
!
scheduler allocate 20000 1000
end
10-21-2013 09:47 AM
Hi Matthew,
You don't need a static route for a connected route, so you should be safe to remove that. I don't believe that's your problem here, but it's something I noticed. When you say that you can't get to anything, I'm assuming that you're trying to ssh into the static natted private address that you have listed in your config. Is that correct?
HTH,
John
10-21-2013 09:51 AM
No, just for testing purposes, I'm trying to get to port 443 on 172.16.1.51 (per this statement
ip nat inside source static tcp 172.16.1.51 443 interface FastEthernet0/0 443)
from the outside
10-21-2013 09:58 AM
For testing, does it work if you remove the cbac config and acl on the outside?
HTH,
John
*** Please rate all useful posts ***
10-21-2013 10:08 AM
no it does not..... same thing.
10-21-2013 10:18 AM
From the router, can you ssh into the device? "ssh -l
HTH,
John
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10-21-2013 10:20 AM
I have SSH currently turned off on that device.... I could turn them on, but its currently in another building that I won't be able to go to until at least tomorrow. So at this point, no that doesn't work, but I know from a firewall standpoint, its open. Its just an ESXi server.
10-21-2013 10:38 AM
I'm sorry...I was looking at something else when I posted that and obviously this is a web server. So, scratch the last thing that I mentioned.
As far as the configuration, I don't see anything wrong. Can you post "show ip nat trans"?
HTH,
John
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10-21-2013 10:40 AM
Pro Inside global Inside local Outside local Outside global
tcp x.x.x.x:443 172.16.1.51:443 --- ---
x.x.x.x is my external address obviously
10-21-2013 10:45 AM
Okay, so the entry is there. I'm assuming that you can hit the site internally?
Try debugging nat, hit the site from the outside, and then post that debug here. "debug ip nat" (You may want to tie to an access-list for that single host)
HTH,
John
*** Please rate all useful posts ***
10-21-2013 10:57 AM
getting a bunch of these
*Oct 21 17:55:36.398: NAT*: s=outsideip, d=localwanIP->172.16.1.51 [11734]
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