VPN 1841, and static nat. I have to create VPN to connect to remote network, but problem is that they already use same subnet as mine. How to configure static nat on cisco 1841 so static nat will work and address will be translated in different IP when connection trough VPN.I have address 192.168.235.1 and I want to translate to 192.168.100.1,This 1841 is border router, and all VLNAs and VLANs routing is on 3650.
View 12 RepliesI have a Cisco 1841 with a DSL and 3G HWIC interface. I would like to setup the DSL as the primary link and then use the 3G as a backup interface. I am trying to accomplish this using the Floating Static routes with SLA object tracking.
I have tried various options, like having two tracked routes, one tracked route, changing administrative distances, multiple SLA's, etc etc.
My problem basically is that when the DSL (Dialer0) goes down and the 3G (Cellular0/1/0) takes over, that the SLA never changes back when the DSL is available again, so that the DSL can take over as the primary link again. [code]
Basically I have an internet router (1841ISR) with 1 internal (LAN) connection and 2 internet connections. What I want to do is route specific traffic for 3 of my internally hosted services (smtp, https, etc) through one internet connection (fa0/0) and then route all other traffic through the unmanaged/dynamic IP ADSL connection (Dialer 0).
View 9 Replies View RelatedWe have a Cisco 1841 router and checked something an unnusual (never seen before) routing table having L - local routes. if this an IOS bug or same as C - connected local routes.
1841#sh verCisco IOS Software,
1841 Software (C1841-IPBASE-M),
Version 15.0(1)M3, RELEASE SOFTWARE (fc2)Technical Support: [URL] ... Copyright (c) 1986-2010 by Cisco Systems, Inc.Compiled Sun 18-Jul-10 01:16 by prod_rel_team
[Code] .....
I used the GRE tunnel site to site VPN with 2 cisco 1841 routers. Behind one of the router R1, I used cisco ASA 5510, now my vpn is connect between two routers, but from R2 other site cannot access to LAN behind the firewall. From R1, also cannot route to local network, from local network can access to R1, I think cause of NAT . So how to configure to route internal network from R1 & R2 with VPN.
View 5 Replies View RelatedI've got an existing Cisco 1841 connecting to a 10Mbps Internet Leased line. With my current setup I've configured PAT for internet access for my users, and we also have some servers on site which are assigned public ip addresses, these can be accessed from the internet. Now we have procured a Cisco 1921 ISR to replace the old 1841, when I connect the 1921 with an identical configuration in place of the old router, 2 things happen.
1) The users accessing the net via the nat are able to work without any inconvenience (good)
2) My servers which have public IP addresses are unable to reach the internet and subsequently I am unable to reach them via the internet (very bad)
Basically I have a bunch of computers that are being routed through a specific gateway in order to access a web page that is hosted internally on a separate subnet. I set up static routes on all of the computers, and they all work... except one.Here's what a route print -4 looks like for a working computer (Windows 7):
Code:
===========================================================================
Interface List
14...xx xx xx xx xx xx ......Broadcom 802.11n Network Adapter
11...xx xx xx xx xx xx ......Realtek PCIe GBE Family Controller
1...........................Software Loopback Interface 1
[code]....
Both of these stations are running Windows 7.So essentially what I am trying to do here is route all traffic to the 10.zzz.zzz.0 subnet through the 10.xxx.xxx.147 gateway. Everything else should go through the 10.xxx.xxx.230 gateway. This is the intended behavior, and again it is working everywhere but that one station.
The host IP 84.204.x.x unable to announce through BGP
BGP configuration on Cisco 1841:
!
interface FastEthernet0.1201
encapsulation dot1Q 1201
ip address 172.18.11.1 255.255.255.252
no ip redirects
no ip unreachables
no ip proxy-arp
code]....
There are no commands like route-map & ip sla monitor on my cisco 1841 router, its ios version is 12.4(T1). I have to configure load balancing and failover on this router but without these commands i cant do that.
View 3 Replies View RelatedI have a 1841 with 12.4(16) IOS.In my configuration I have to interfaces for internet access, without vrf:
interface ATM0/0/0
dsl operating-mode auto
pvc 8/35
encapsulation aal5mux ppp dialer
dialer pool-member 1
[code]....
This two interfaces are in the global route table because there is no vrf indication. These are for internet access (a simple adsl connection) Then, I have this interface in VRF named "lan123"
interface FastEthernet0/1.23
encapsulation dot1Q 123
ip vrf forwarding lan123
ip address 192.168.143.254 255.255.255.0
ip nat enable
Now the issue.If I write:
ip route vrf lan123 0.0.0.0 0.0.0.0 Dialer0
this works and, with nat, internet works. The question is why this works without the "global" keyword? I'm going from the vrf named "lan123" routing table to global table without the using of "global" keyword.
If I try to use:
ip route vrf lan123 0.0.0.0 0.0.0.0 Dialer0 global
there is an error indication.
I config the routers with EIGRP and also write Static route between two PC before remove the link between router0 and router1 , destination is reachable , but when remove this connection , packet from pc1 to pc0 will drop in a loop and never reach to destination , is it possible to have a Link state routing protocol and static route at the same network like this scenario , how to prevent loop in this topology static route is configure as bellow :
router0 <==> router 1 <==> router2 <==> router3 <==> router <==>pc1
I have a new Cisco 819 router wtih Verizon 3G built in. I want to use this router to provide 3G backup Internet access for a customer kiosk. The 3G is perfectly stable when I use it as a primary, static routed connection. When I use a floating static route, the link goes up and down constantly. The 3G link works for a about 20- 30 seconds, then goes to reset, down, then dials up and reconnects.
View 2 Replies View RelatedI have a nat and vpn setup on my Cisco 2801 router.Everything is working as expected except the NAT. I have a single static nat translation but it only works for inbound and not outbound. Going outbound, it uses the default overload nat address of the outside interface. [code] I want to add another mailserver. But I fear if one mailserver were to get black-listed, they would both be reporting there ip address as the same address (the one on the ethernet interface) which would blacklist both mail servers.Again, inbound nat works ok, but outbound is just using the IP of the ethernet0/0 address.
View 2 Replies View RelatedGot a problem routing trafic to my L2L tunnel...
Got an ASA5505 Sec+ with ip 10.45.10.1 on inside interface. Firmware 8.3(1). Got another Cisco router (From my ISP) with ip 10.45.10.254 - This one creates an L2L tunnel - To the 10.45.20.0/24 net.
On the 5505 ive got "route inside 10.45.20.0 255.255.255.0 10.45.10.254 1", and trafic is being directed to 10.45.10.254 as it should.
I know cause I can ping everything one the 10.45.20.0/24 net - But thats it... Cant RDP, connect to fileshare... Nothing.
When i test a PC and set it to gateway 10.45.10.254 I can access everything on the remote network. Do I need some NAT command or an access-list? I've setup AnyConnect VPN on the ASA and I can connect to both networks without any problems.
In my Lab environment in GNS I have connected two 7200 series router through fastethernet on router A I have given IP adress 192.168.10.54 and router B I have given IP address 192.168.10.53 and default route as 0.0.0.0 0.0.0.0 192.168.10.53 and when I run the command on router A it shows result as follows "C 192.168.10.52/24 is directly connected ,Fast ethernet 2/0".
So I need to know why it's showing the result of .52 at last why not .53 or .54 at last what is the reason it's showing .52 which I have not mentioned in my IP address.
We have a customer, who has the following setup:
ISP router with ip range: x.x.202.1/ 28
That is connected to a Cisco 2960 switch, that doesn't do much but:
Vlan5: x.x.202.14 /28
Port 1-12 is switchport mode access to vlan 5 There are 3 firewall's connected to the 2960
1: D-Link DSR-1000N with ip x.x.202.2 /28
gw: x.x.202.1
2: Uknown
3: Cisco ASA 5505 with ip: x.x202.7 /28
static route: x.x.202.1
Each FW have a LAN behind it. The D-Link and the unknown device are both working perfectly and clients on each subnet can connect to the internet?However when I connect the ASA 5505 to the 2960 SW with a configued static route: Route Outside 0.0.0.0 0.0.0.0 x.x.202.1 1 is says it has no route to host?
Sanitized Config for the ASA 5505 is:
hostname ciscoasa
domain-name network.local
names
!
interface Ethernet0/0
switchport access vlan 2
[code]....
If I connect the ASA5505 to the LAN of D-Link DSR-1000N and give it a static address and a static route match the D-Link LAN network, it works perfectly, however not when I connect it the the Cisco 2960 Switch
Add static route for new exchange server?
View 1 Replies View RelatedI have configured a L2L VPN on a Cisco 1841 ISR. I am statically NATing some of my internal hosts to IP addresses that are included in the encrypted traffic. Please note that not all of the internal hosts are being NATed. I am doing this to hid some of the real IP addresses on the inside network. I have confirmed that the VPN works, as well as the NATing of the VPN traffic. I have traditionally configured L2L VPNs on Cisco ASA 5500 series appliances, and this is my first attempt with the 1841 ISR. I just want other to take a look a see if I missed anything, or, could I have done some of the configuration more efficiently. All comments are welcome.
VPN-RTR-01#show runBuilding configuration...
Current configuration : 9316 bytes!version 12.4service timestamps debug datetime msecservice timestamps log datetime msecservice password-encryption!hostname VPN-RTR-01!boot-start-markerboot-end-marker!! card type command needed for slot/vwic-slot 0/0logging buffered 51200 warningsno logging consoleenable secret 5 xxxxxxxxxxxxxxxenable password 7 xxxxxxxxxxxxxxx!no aaa new-modelip cef!!!!no ip domain lookupip auth-proxy max-nodata-conns 3ip admission max-nodata-conns 3!!crypto pki trustpoint TP-self-signed-2010810276 enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-2010810276 revocation-check none rsakeypair TP-self-signed-
[code]....
I have a Cisco 1841 router at home with version 12.4(13r)T advanced ip services. The setup is extremely simple:
1) PPPOE dialer to my service provider over ADSL
2) Nat overload on the dialer interface.
3) 2 V LAN s one for home network (wired) and one for wireless both v LAN's are connected through interface v LAN s respectively.
My problem is when I configure static NAT to map RDP or any other protocol to inside hosts this does n`t work.
"
ip nat source static tcp 192.168.20.3 2222 interface Dialer1 2222
ip nat source static tcp 192.168.20.3 3389 xx.xx.xx.xx 3389 extendable
ip nat inside source list 20 interface Dialer1 overload
"
When I open wire shark and sniff the traffic on home computer which is the one I`m trying to reach I can't see any traffic. And While performing Nat debugging I am also not able to see traffic going to that port (for example 3389).
I am setting up a remote site to provide a backup internet circuit for outbound traffic. Everything is working from the main site by redistributing a static route and using default-information originate within BGP to my MPLS provider.Now on the remote site I setup a static route with an AD of 250 which is higher than the AD of 20 we are getting from the main site over the MPLS network. When the route come up BGP uses the default route from the main site and everything works fine. When I clear the BGP routes at the main site the backup site installs the static route with a higher AD. The problem is when the BGP route comes back up the static route is not getting removed. From looking at some other posts it seems that the redistributed local route is still preferred by BGP. They mentioned setting the weight to 0 in a route map which I tried but I am not getting the results of removing the static route and using the BGP route.Remote site router config: router bgp 65011. [code]
View 24 Replies View RelatedMy 2811 is connected with two ISP,s as below and have VPN with Central branch.I want to set DSL as primary and WiMax as secondary but problem is that routes learned via BGP get precedence over default route as they are specific one.I think i may need to put all static specific routes of central branch over DSL along defautl but I want any idea if my default route stay active and when it down then BGP neighborship can be establish (like ip sla tracking.)
View 3 Replies View RelatedI have Cisco RV180. I can not set static route with destination to all IPs (0.0.0.0/0.0.0.0). It always shows errors. It asked me to input non zero number. I can do this on Cisco RV042 without any problem.
View 3 Replies View RelatedHave a solution with PFR with two master controller in hsrp mode and two active border controller, betwen the MC and the BR i'm running EIGRP. The two BR have BGP to the ISP but i have default router for the parent route. Same weeks ago i notice some problems in reaching to specific public ip addr. During the trobleshooting i found that the two border controller have dynamic-pbr applyed to the inside interfaces and one of the satement on the dynamic route-map is setting the next-hop for the destination public ip addr yhe inside interface on the two border routers. This way the traffic is looping betewn the two BR. It's possibel do disable the PIRO (PBR) and only to use static route injection betwen the MC and BR.
The routers are running 12.4.24T
We use ASDM 6.2 to manage our Cisco ASA 5520 running ASA Software Version 8.2 (1). I just noticed that some static routes have "A-" when you view the static routes with ASDM e.g. A-172.24.0.0 or A-192.168.176.0 (pls see attached print screen). I haven't seen this before and dont know what it means.
View 4 Replies View Relatedi measured with Iperf over two Cisco 1811 router, that bandwidth speed is higher then is used IPsec+GRE tunnel between two routers, than just using a static routes.Bandwidth over GRE in average is about 91389Kbit/sec Over static routes is about 88474Kbit/sec.
View 1 Replies View RelatedI guess i am just getting old and forgot how this works, or i have an IOS load with an undocumented feature in it.A customer of ours wishes to have their exchange server appear to the outside world on a seperate IP address as their public pool address is.in the past this has not been an issue, however in the current configuration we are unable to get the source address to appear per the NAT statement it always sources on the overloaded IP. below is the relevant NAT config, am i missing something, or have i hit a IOS feature? [code] There is a 45% chance i have forgotten everything i learned on the NOC desk and a 50% chance that it is somethine really stupid and 5% IOS is broken
View 5 Replies View RelatedWe upgrade our Internet service in our India office which required a new router. The local vendor suggested an 1841, so that is what we have. It has two fastethernet ports on it.
The ISP (Airtel) provided the following IP address information:
Public WAN IP : 122.181.23.200/30
WAN IP : 122.181.23.202SUBNET MASK : 255.255.255.252GATEWAY : 122.181.23.201Pri DNS : 125.22.47.125Sec DNS : 202.56.250.5
[Code]......
I have a layer 3 switch with a bunch of SVIs all in the 192.168.x.0/24 range. I just want to advertise a 192.168.0.0/16 summary to the BGP neighbors. I can do this either by:
1) Redistributing connected into BGP and then using the 'aggregate-address' command to advertise the summary.
2) Specifying a network statement in the BGP config for every single SVI, then using the 'aggregate-address' command.
3) Create a static route to null0 (ip route 192.168.0.0 255.255.0.0 null0) and put 'network 192.168.0.0 mask 255.255.0.0' command in the BGP config.All three fulfill the same purpose of summarizing all the SVIs, but creating the static route is much cleaner in this case. It seems like the aggregate-address command is mostly intended for routers that are aggregating connections coming from other routers and all of them share a common prefix.
I have inherited an ASA 5520. In doing some auditing of the setup, I have noticed a Static Route that has the inside interface of the ASA as the Gateway IP. I am trying to understand the purpose of this route or why a route would be setup this way.
Example Static Route:
Inside 10.xx.31.0 255.255.255.0 10.xx.xx.10 (10.xx.xx.10 is the inside interface of ASA)
I have a new MPLS circuit being stood up for my site; it’s going to replace a site to site VPN connection to our "Headquarters." I want to test this without affecting my production networks. Without getting into alot of details, the admin at the remote site is not very cooperative and basically doesn't want to set this up and I don't have access to his switching/routing. He is prepared to do minimal tasks if necessary. Ultimately, I am looking to test the new Vlan, once successful, route the traffic away from the Site to Site VPN connection to the MPLS circuit. Here is what I plan on doing, I need to determine if it is going to work.
LAN in my office uses EIGRP for routing. MPLS (10.1.1.253) uses OSPF (area 0) and BGP. Currently, traffic destined to headquarters (10.10.1.1/24) uses the default route on a CAT3750 pointing to the firewall (ASA5520) (10.1.1.254).Create new VLAN/DHCP scope to use as a test Vlan to test the new MPLS circuit. 10.1.199.0/24Create static routes on 3750 destined for headquarters for L2L VPN traffic pointing to firewall so traffic to headquarters remains on the L2L connection. ip route 10.10.1.1 255.255.255.0 10.1.1.254 (once I share routes with OSPF, routes to Headquarters will be advertised over the MPLS)Create OSPF instance on the 3750 advertising only the new subnet so that the MPLS network knows to route this traffic over the MPLS for return traffic from headquarters. (this is where it is grey as I don’t know OSPF at all) The switch has a L3 interface which the MPLS router uses as its gateway, so there is direct communication.router-ospf 0 network 10.1.199.0 0.0.0.255 area 0 4. On 3750 create a PBR for the new subnet so that it is routed over the MPLS, (imagine test PC is 10.1.199.100), the remaining production subnets will use the static routes and ignore the OSPF routes because of the shorter administrative distance.Will the PBR route win over the static route for that one subnet? Is that all I need in the OSPF configuration? I see some configs that have neighbor statements with costs, authentication types etc..
I defined a static route: 192.168.0.0 / 255.255.255.0 / 192.168.1.201 (gateway), I can connect from 192.168.1.0 to 192.168.0.0 but we cannot ping in this local network. We have a CISCO 18000 as a VPN IP configured between this two local network.
View 1 Replies View RelatedWe have two sites: 192.168.100.x and 192.168.101.x currently connected via IPsec VPN. On each end we have a Cisco ASA 5505. However, each site also has an MPLS VPN with intentions to move all traffic to this link. Will this work on the ASA? We need to make sure traffic can hit the ASA @ site A on the inside interface and trafiic will forward to the MPLS VPN router which then handles the traffic. Too, will it cause any problems in bi-directional flow between the two sites?
View 3 Replies View Relatedthis is router 887, its vlan is 192.168.3.1/24. If I'd like to add a static route via different host within same vlan, rather than the router, like:
ip route 192.168.100.0/24 192.168.3.6
How can we achieve it? I tried adding it directly and failed:
(config)#ip route 192.168.100.0 255.255.255.0 192.168.3.6
%Invalid next hop address (it's this router)