I am advertising the 172.16.10.0 network from R5 to R1 via EBGP. The problem is that on the Router R1 I see the route 172.16.10.0 whith show ip bgp command but in the show ip route don't appear.I thinked that the problem was SYNCHRONIZATION,so that will activated synchronization on the routers R1 and R4 but don't work. Furthermore the routers R2 and R3 neither receive the route via OSPF.
View 11 RepliesI have a situation where my Internet edge routers learn 0.0 from ATT (AS 7018) my provider. I then wish to advertise these learned routes via WAN. However my WAN MPLS provider is also ATT and they use AS 7018 for that as well. When I try to push 0.0 to my other WAN sites 0.0 is suppressed to avoid loops.What's the best way to tell the WAN routers to advertise 0.0 back to the same AS originally learned from?
View 16 Replies View RelatedI have Cisco 7200vxr doing BGP with 2 directly connected ISP's over ethernet. I am receiving default routes only, and have added a higher weight to my routes learned from my primary ISP. below is my configuration (ip addresses changed of course)
router bgp 100 no synchronization bgp router-id x.x.x.x bgp log-neighbor-changes network 100.100.64.0 mask 255.255.254.0 network 100.100.71.0 network 100.100.78.0 mask 255.255.254.0
neighbor <ISP_A-IP> remote-as 200 neighbor <ISP_A-IP> weight 175 neighbor <ISP_B-IP> remote-as 300 neighbor <ISP_B-IP> weight 150 auto-summary
Advertising my rotues to the primary ISP is fine
7206vxr.rb#sh ip bgp neighbors <ISP_A-IP> advertised-routesBGP table version is 7, local router ID is x.x.x.xStatus codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S StaleOrigin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path*> 100.100.64.0/23 0.0.0.0 0 32768 i*> 100.100.71.0 100.100.64.57 0 32768 i*> 100.100.78.0 0.0.0.0 0 32768 i
Total number of prefixes 3
However, advertisements to the secondary ISP inlcludes the defautl route learned from the primary 7206vxr.rb#sh ip bgp neighbors <ISP_B-IP> advertised-routes BGP table version is 7, local router ID is x.x.x.x Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 0.0.0.0 <ISP_A-IP> *> 100.100.64.0/23 0.0.0.0 0 32768 i*> 100.100.71.0 100.100.64.57 0 32768 i*> 100.100.78.0 0.0.0.0 0 32768 i
Should I not just only be advertising just the networks that i specified in my configuration?
I'm trying to sort out someone else's 800 series router config IOS 12.2 that was just added onto for years and never cleaned up. There are about 10 route map statements near the end. As far as I can tell, only two are being used. Doesn't a route map statment have to be called(referenced) in another statement in order to actually be used such as either under an interface or in a nat statement?
View 2 Replies View RelatedI am trying to configure dual ISP on my ASA5505.I have everything configured and working when eth0/0 is connected, but when I disconnect it, it doesn't route any traffic.The static route for the primary isp is removed and the static route to the backup isp shows up, but no traffic goes in or out. I should note that I'm doing this as a proof of concept so eth0/0 is connected to a router and eth0/1 is connected to another router. [code]
View 7 Replies View RelatedI have a Cisco router 877. I am trying to configure a backup with ISDN.The primary line is an ADSL over pppoe. The problem is that despite the primary line fails, doesn't change the path and continue going by the main route.I have a very similar setup, also with a cisco 877, but with a normal DSL and it works perfectly.I solved the problem by activating a tracking but is slower than the other method.
View 2 Replies View RelatedI need to be able to redirect some HTTP traffic to an Ironport WSA (for now) on a DMZ interface, the initial config I'm trying to test is along the lines of the following (don't have access to the ASA at the moment to cut-and-paste):
access-list 101 deny any any neq www
access-list 101 deny tcp host 10.0.2.2 any
access-list 101 permit tcp any any
route-map proxy-redirect permit 101
match ip address 101
set ip next-hop 10.0.2.2
Unfortunately the ASA does not take the "set ip next-hop" command, I get an invalid input error message and if I at the route map config prompt type "?" only the "metric" and "metric-type" commands are listed as available.
This happens both on 8.2 (ASA5510) and 8.4(2) (ASA5505). Since others are able to make this work, I assume there's something else on the ASA that I have to set to enable this command?
I changed from a Linksys E4200 to a 5505 and when I use trace route, it doesn't return a DNS name for each hop. I can see the hops shown as asterisks. Do I have to add something to inspect for this to work?
View 1 Replies View RelatedMy network has two connections to a third party via links on two seperate ASA , one in location A and one in location B. The link in location A is the primary connection and the other in location B should be used by only two terminals (term1, term2) in location B. ASA are running OSPF and are redistributing static routes as metric-type 1 in OSPF. In order to achive the aforementioned goal, I have configured a route-map on ASA location B, that sets the metric for the route towards the third party to a high value (100). This way, all routers, even those in site B prefer the exit through location A (metric about 24).
I have checked that my routers correctly have the route to the 3rd party through location A, and the OSPF database has records for the network from both locations.In location B, I have configured the following route-map (on 6509)
route-map PREFER-LOCAL-ROUTER permit 10
match ip address XXX
set ip next hop locationB-ASA
int vlanYYYY
ip policy route-map PREFER-LOCAL-ROUTER
[code]....
From the terminals (term1 and term2) I have tried a traceroute towards the 3rd party's subnet, but I don't get any match neither on the access-list nor on the route-map. Unfortunately I have no other way to test that my configuration is correct, since the application on the terminals, that should access the 3rd party network, is not currently running.
I also addedd the statements below to the access-list, because of the test with tracert:
permit icmp host term1 route_to_3rd_party 0.0.255.255
permit icmp host term2 route_to_3rd_party 0.0.255.255
Nothing changed...Is there something wrong with the above config? Is there a chance that there is a problem with the IOS, that simply doesn't show any hits?
I have an ASA 5510 that is configured for a remote access VPN
When users login, they are given an address from a locally defined pool (172.16.101.1-254 /24). Users can log in fine.
I have enabled EIGRP on the ASA and I have configured the following to be advertised:
1. 0.0.0.0 (default)
2. 172.16.100.0 /24 (dmz network)
3. 172.16.101.0 /24 (vpn pool)
I have also enabled reverse-route injection.
The problem I am having is that the VPN pool network is not being advertised via EIGRP, but the other networks are.
The other issue I am having is that even though I have created access-lists that allow the inside network (10.0.0.0) to ping the DMZ interface (172.16.101.1) on the ASA, the ASA is not allowing it. I have also created an ACL that allows the DMZ interface to ping inside, but this fails as well.
I have the following zebra.conf on my router box "A":
hostname nuclear-router
password password
enable password password
interface eth0
ip address 192.168.2.1/24
multicast
[code]...
eth0 is connected to a switch and contains the 192.168.2.0/24 range, and A is connected to my WRT54GL "B" (with IP 192.168.1.1, containing 192.168.1.0/24 range, DHCP serves IPs above .100) wirelessly. B is connected directly to my DSL modem.
The problem is that when I specify the default route using the interface name, I can't connect to the internet from A or any hosts behind it - I'm always hit with a "no route to host" error. Name lookup and pinging any local host (even in a different range) or the DSL modem works fine - it's only when going beyond the modem that things stop working. However, when I use the IP of B as the gateway, it works fine. I noticed that route output on A when the default route was specified using the interface alone had only an asterisk in the gateway column. I was under the impression that these approaches should be identical in practice, so though I got it working, I'd like to know what I'm misunderstanding (and/or misconfiguring). Why didn't the default route work when specified using just the interface?
All routers and the modem too have RIP (version 2) enabled, and of course the password isn't really the word "password".
Is there a command available on the 6500 that I can use to see what prefixes it is advertising directly to a neighbor?
The diagram is detailed and complex, but the simplest problem statement is that it doesn't look like my 6500 distribution switches are advertising certain prefixes to one of the 6500 access switches. I don't know whether this is an issue of the distribution switches not sending the prefixes down to the access layer (they should be; the route originates on a different set of access switches) or my access switch is dropping the prefixes. I don't see them in the topology table at all.
If the prefix isn't being advertised, I need to troubleshoot the distribution. If it is and it's being ignored, I need to troubleshoot the access. There are no obvious conditions that would prevent the access switch from getting the prefixes -- interfaces aren't passive, no distribute lists at work, everthing in the same AS, I have neighbor relationships (and I am getting other prefixes over these links, and these prefixes are being advertised to other access switches), auto-summarization is off, split horizon is still on . . .
I have a very detailed diagram of all of the metrics and links and I don't see any reason why my access switch shouldn't be getting the prefixes. 6509 chassis, dual sup 720 3B, 12.2(33)SXI4a advanced enterprise services IOS.
ASA 5585-x10, ver 9.1. I have about 10 public sub nets that will be used for NAT translation on the outside interface. These sub nets are different from the sub net the outside interface. Is there a way to advertise these routes using OSPF from the ASA?
I tried to redistribute a static route, but can't make the destination router an interface that is on the ASA. I don't own or control the upstream router.
I've enabled antispoof on all interfaces on asa 5510.If you start a traceroute to a network on the default route, everything works, since replies comes to an interface with route 0.0.0.0/0 defined.If you start a tracer route to a network that is NOT on the default route (let's assume coporate MPLS), you only get response from first carrier router, the other are discarded because of anti spoof violation.
I have ICMP inspection and icmp-error inspection enabled.
I have a NAT/Port Forwarding going on for which I need to deny all traffic except the one mentioned in my ACL/route-map, So, port forwarding from host A to host B, all else, deny. The port forwarding works, but for some reason.
View 2 Replies View RelatedI'm trying to setup an 877 to sit in front of a firewall. As the firewall has a public IP I do not want to use NAT. The problem I'm having is I can't seem to route through the 877. From the 877 i can ping 8.8.8.8 From the internal network I can ping the dialer0 interface of the 877 but cannot ping 8.8.8.8
View 2 Replies View Relatedwhy a subnet wouldn't be passed on to just one participating OSPF device?
I have two routers and an ASA, all of which are in area 0, it's a pretty simple config. The two routers are connected to some other devices (also in area 0) that pass of an external route to a particular subnet, let's call it 192.168.4.0. The routers are getting it just fine, but the ASA is not:
I have a Cisco 819 router and it's the first time I've configured any Cisco product. Starting from scratch, I have managed to get 3G working and the VPN to connect but so far no packets can route down the VPN tunnel (the other side is openswan/shorewall on CentOS5).I've been pawing over lots of guides and forum discussions but seem to be a bit lost. I suspect I'm missing some access-list definitions but don't really know how to go about it. I want the network behind the Cisco 819 (10.x.x.0/20) to be able to access the internet through the interface Cellular 0 but also the VPN remote network (192.y.y.0/24)When I ping from the other (non-cisco) end I see on the Cisco 819.
View 9 Replies View RelatedI am a bit green with IOS and have exhausted everything I can think of with this. The router passes the WAN test in CCP?Undoubtedly there are probably a few things in the config that are either redundant or totally unnecessary, but I have been trying a few things to solve this with very little success.I have no security stuff in here because I have triewd to keep the config as simple as possible to start with. I will add that after I get the routing working.
Here is my most recent config:
Cisco871W#show config
Using 2631 out of 131072 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
[codde].....
Configured cisco 881, WAN has static IP address and LAN is nothing fancy. I can ping out to url... or anywhere from the router but cannot from LAN client computers. [code]
View 4 Replies View RelatedI am attaching my current network topology, My problem is that i am having mpls & p2p link terminated on the 7206 router left side of diagram. now my problem is if i apply PBR on this 7206 router & tracer any host which are on right side of the diagram, it drops on IP 10.1.1.1..ideally it should go to my Core switch on right of the diagram.
View 8 Replies View RelatedI configured dns on the router on this command ip name-server 4.2.2.2when i tried to ping www.google.com showing no valid routeTranslating "www.google.com"...domain server (4.2.2.2) [OK]Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 2800:3F0:4001:807::1013, timeout is 2 seconds:
View 9 Replies View RelatedI am trying to track down a device that's blocking a certain port I know there are programs out there than will do a trace-route that's on TCP but is there any programs that allow you to specify a port?
View 6 Replies View RelatedIs there any way to route inject with RRI only when the VPN is formed on an ASA ?
View 5 Replies View RelatedI want to leak default internet route to CE VRF as common service.Since we having two ASBR, can I point next hop to PE itself instead of either of the ASBR?I tried to point NH to loopback of the PE itself but it failed.
View 6 Replies View Relateda) one router with two ethernet interfaces (LANs) and a serial interface. The serial interface is connected to the internet, dynamic nat is used for hosts in the two lans. A web server has a private address of 172.168.50.10 and it is being translated to the internet with serial's interface 68.32.x.x (public ip) with static nat. Clients in the internet type the public address to access the web server.
b)Problem: clients inside the LANs cannot access the web server by typing the public address, they use the server's private address instead, this create a problem with DNS static entries in the HOSTS file in the OS. It is a test server and is only available to authenticated users (lock and key ACLs), so no need to make a real DNS record. The entry in the HOSTS file points to the public address.
c)Question: how can a create a route map to change the public address in the HOST file to the private address of the test web server everytime a user in the LANs type the domain name.
I know RD is used to make an IPv4 address unique in an MPLS VPN system.I don't understand why a PE sends the RD when advertises a route via BGP.I thought RD were only local significant. But I made a packet capture and the RD is actually sended inside the MP_REACH_NRLI attribute:
(from packet capture)
Label Stack=19 (bottom) RD=12:1, IPv4=172.16.22.0/24
MP Reach NLRI Route Distinguisher: 12:1
Why the RD is sent? I suppose that the PE receiving the update checks the Route Target Extended Community to know to which VRF associate the update and not the RD.I made a test between PE1 with RD 12:1 and PE2 with RD 13:1 and there was full routes exchanges, the same when both PEs were using the same RD(all this configured in the correct VRFs). The only difference is that PE2 now shows in their corresponding VRF BPG table "Route Distinguisher 13:1".
We 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 have a 2801 with dual ISP connections, and I have configured route-maps to direct voice traffic over ISP1 (working just fine), and I'm attempting send all other traffic over ISP2 (traffic is load-balancing instead). The connection to ISP2 is DHCP, and I have configured a route-map to route this traffic using the 'ip next-hop dynamic dhcp' command, but when I look at the route-map, it states the following: ip next-hop dynamic dhcp - current value is UNKNOWN..Is there something that I need to enable in order to see the next-hop, and properly send traffic over the ISP2 connection? [code]
View 9 Replies View RelatedI have pix firewall 525, configured with ospf process. We are also performing route filetering in ospf process using route-map. Now we want to remove this route-map from ospf process. Any step-by-step process for removing route map as per below list. How to remove route-map without having any impact as per above configuration.
View 1 Replies View RelatedWe have had to replace a Cisco 877 with a Cisco 877VA (DSL & VDSL). Router connects using its DSL interface to the ISP and works ok, from the router if I ping 8.8.8.8 for google it works ok.If I use an IP NAT and Access list (See Below) from the internal network I can ping and get out OK.If I use a route map, which is required for getting around some of my VPN / Static NAT issues I currently can not ping or get out. The config works ok on the old 877 model router which is running an older version of code and is an older model.
View 2 Replies View RelatedI have route-map defined on my ASR 1002 12.2(33)XNE and applied to my gi0/0/1 interface. I need to change the IP address defined on the "set ip next-hop ..." line. My question is, when I make the change in just the route-map definition, does the change take effect immediately, or do I need to remove and re-apply the "ip policy route-map ..." statement on the interface? If I do have to remove and re-apply, will this be service-affecting for all the traffic flowing through the interface? I'm just not sure what to expect.
View 2 Replies View RelatedI have a router with 2 WAN (MPLS) connections to two different IPSs.One connection is a 3mbs MLPPP connection and the other is a 10mbs MetroEthernet connection.Both use BGP to peer up with the ISP with private AS numbers (65001, 65002, etc)I want the router to always prefer (use) the BGP connection through the 10mbs link, but here are my considerations:I can't change the prefix length for the peers. In other words, BGP 65001 is going to advertise 192.168.21.0 /24 to its peer, and BGP 65002 is going to advertise the same network with the same mask.What is the best way to make sure the 10mbs link is always preferred? Can I do local preference?
View 6 Replies View Related