Cisco WAN :: 2811 - No Access To Both Links Simultaneously?
Apr 21, 2011
We suffer some problems with our remote 2811, that has two WAN links (two different ISP) - we cannot get access to both of WAN at the same time.
At first, the aim was to load balance the traffic between wan links: at first we tried to use OER, but users complained about instable internet connectionthen we tried PBR + NAT Generelly we have just the same scheme as [URL] : dual WAN linksPPTPPPPoE over ADSLequal static routesNAT using route map The problem itself: When both links are up, the 1st WAN is pingable, and the 2nd is notWhen the 1st link goes down the 2nd becomes pingable and accessible and vice versa. When I disabled the CEF, the 1st was still pingable and the 2nd became pingable too, but very unstable
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Aug 20, 2011
I have recently purchased 2911 routers running 15.1 to replicate a system I had implemented using 2811 routers running 12.4 a few years ago. None of my applications and servers have changed, but trying to determine why my router access-list on my serial links are not behaving the same. I don't keep up with Cisco changes.
On my original system, which is a private network that distributes a lot of udp broadcast and multicast data to remote sites over 64k serial lines, I manage some of the udp broadcast data using access-lists. When I check on my 2811-based system, "show ip access-list" shows a nice distribution of filter hits showing my expected deny/permit access-list entries working as expected allowing me to filter the particular udp broadcast ports of interest on the various serial interfaces.
On my 2911 based system, with most other elements the same, the access-list is not working correctly, and I see data getting through the access control to the other side of the serial link. Using tcp dump and other tools on the remote systems my routers attach to, it looks like the access control is basically ignored... though if I "shutdown / no shutdown" the serial link between the routers, it definitely stops and restarts the flow of data, so I know data is traveling over that interface... when I run "show ip access-list" on the 2911, I see tons of hits on one deny filter, and the last "ip permit any any" filter, but other deny udp any any eq XXX port filters are simply not registering denies.. which should be triggering since I see my server sending the data, and my client systems receiving the extra data I am supposed to be filtering on the router...
Is there potentially a new feature or command set option that I am missing to correctly filter outbound data from my serial links?
On 2811 w/ an
HWIC 4A/S int s0/0/0
ip access-group sample1 out
ip access-list extended sample1
{code]...
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Jul 18, 2012
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Jan 24, 2013
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May 31, 2012
I have 2 ISPs terminating on 2 FE ports on my 2811 router.ISP1 had always been here, used for the following:Internet access to LAN usersInternet access with public IP mapping to servers in different security zones (VLANS)Site to Site VPN tunnels to 3rd party partnersRemote VPN access to 3rd party partners We recently got a second ISP, mainly for the following:Internet access and public IP mapping to servers on seperate security zones (VLANS)Site to Site VPN tunnels to 3rd party partners as above, but different hosts So far, ISP1 and all the above service have worked based on the config below. However, having added ISP2, I have not been able to successfully create the site-to-site VPN tunnels.
version 12.4
!
ip source-route
!
ip cef
!
ip name-server 4.2.2.2
ip name-server 137.65.1.1
ip inspect WAAS enable
[code]....
Whenver I try to establish a tunnel on SDM_CMAP_2 and run a test using CCP, I get 2 failure reasons:
1. The peer must be routed through the crypto map interface. The following peer(s) are routed through non-crypto map interface - 4.58.130.130
2. The tunnel traffic destination must be routed through the crypto map interface. The following destinations are routed through non-crypto map interface - 4.58.130.134
The tunnels on SDM_CMAP_1 are all active Do I need to include a default route for the second ISP on the router? If so, how do I get this done? When I tried it, I had loops on the user LAN segment of the network.
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Jan 18, 2012
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Aug 22, 2011
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Feb 8, 2012
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Internet(VPN) ---> Router1 (FE 0/1) ---> Router1 (FE 0/0) --> Router2 (FE 0/0) --> Router2 (FE 0/1) --> LAN
I tried configuring on Router1 (FE 0/0) interface and also on Router2 (FE 0/0) interface with same behaviour. Router2 is used for internal NAT.
bridge irb
bridge 1 protocol ieee
bridge 1 route ip
[Code].....
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Jul 3, 2011
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Dec 22, 2011
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