With the network command you can inject routes from the routing table into the BGP process.Why the need to redistribute routes from another routing protocol into BGP using redistribution if you can do the job with the network command?
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Is it deemed bad practice to redistribute BGP into an IGP such as OSPF or EIGRP? BGP will only be private routes and not an internet routing table. The reason I have for wanting to redist. into an IGP is so a L3 switch (the default gateway for hosts) can route to different upstream routers (where the redistribution would happen). I do not wish traffic to hit one router (via a default route to HSRP or similar) to then be routed across to the other router via an iBGP, for example-I feel I would like traffic to be predictable. Secondly, I'm quite sure that the first router would have difficulty routing internally via the same AS number as BGP prefers external AS's.
View 4 Replies View RelatedWe are currently running ISIS and recently we have purchased 2 WS-C3750X-24. Unfortunately 3750 do not support ISIS and we have decide to use redistribution between ISIS and OSPF. We are using Stack feature so consider 3750 as one chassis.
Router A and Router B are ISIS neighbors. As first step we have setup redistribution between Router A and Switch 3750
Router A Configuration router isis
net 49.0000.0000.0000.0001.00
metric-style wide
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Switch 3750 Configuration
router ospf 1
router-id 192.168.2.1
passive-interface Vlan3
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From Router's A routing table we see the ospf routes life is good Switch routing table has E2 - OSPF external type 2 routes and is reachable from the rest of the network.
Router A #show ip route ospf 1 Gateway of last resort is not set O192.168.10.64/27 [110/2] via 172.17.1.3, 2d01h, GigabitEthernet1/20 [110/2] via 172.17.1.1, 2d00h, GigabitEthernet1/19
When we bring up the ospf adjacency with Router B the whole ISIS routes are replaced with E2 - OSPF external type 2 which is not desirable.
Router B Configuration
router isis
net 49.0000.0000.0002.00
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I am facing two issues in BGP both the topology and Config files.Because the link between Vail and Telluride runs iBGP, both routers will learn about the networks in AS 300 and AS 400 through native BGP only and both AS's do reach each other. Both routers are also running OSPF with Aspen and BGP routes are redistributed into OSPF domain. Now, Aspen knows about the networks in AS 300 and AS 400. Now suppose the link between Vail and Telluride fails, both AS 300 and AS 400 can't reach each other anymore. The only solution to this is to redistribute OSPF routes to BGP on Vail and Telluride. But when i did this, only routes with "O" learned by Tahoe and Alta. In other words, Tahoe sees only 192.168.1.220, 192.168.1.196 and Alta sees only the same routes. Why the redistribution from OSPF to BGP didn't advertise the O E2 routes?
This actually was discussed before but i still can't get it. It is not an actual issue.It is about "Syncronization". I know that we've said many times to turn on Sync. when we do redistribution from BGP to an IGP to make sure that the routes are installed correctly in the IGP routing table. However, as you notice in the configuration, i didn't enable Sync. on Vail and Telluride for a long time and redistribution still works fine.
I redistribute our MPLS eBGP routes into our internal EIGRP process at each site. This action undesirably redistributes locally generated BGP networks (via network command) that are meant from the MPLS cloud into our internal routing process.I currently have a route-map on my 'redistribute bgp' command that filters each network manually with an ACL. This works but adds obvious administrative overhead; each WAN router advertises different networks, and the ACL must be updated for each new network.Would it make more sense to simply deny routes from BGP to EIGRP with a metric of 32768? Something like this,route-map deny-local-bgp deny 10 match metric 3276 router -map deny-local-bgp permit 20,router eigrp 100 redistribute bgp 65104 route-map deny-local-bgp.
View 19 Replies View RelatedI have two 7604 routers running IOS 12.2(33)SRB5a as ASBRs in my network. They both connect to a common AS via DS3 lines.FR01 is considered my main circuit, FR02 is the backup. But I have some heavy disk sync traffic I want to route via the backup unless that circuit is down.How could a static redistribution possibly influence all my routes ?
Here is the remote AS config on both routers. We summarize the routes and only change the redistribute metric to distinguish main from backup circuit :
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I am having a problem reaching a soho linksys e1000 router through a second hop cisco 2900 router.Here is a brief topology of the network: I am using OSPF area 100 for all networks except for
192.168.2.0 on R1 to E1000 which is RIPv2
R1 directly connects to R2 with a point-to-point serial on network 192.168.12.0 /30 with ip 192.168.1.13
R1 directly connects to a a switchport using network 192.168.2.0 /24 with ip 192.168.1.75
R3 directly connects to a switchport using network 192.168.1.128.0 /25 with ip 192.168.1.129
R3 directly connects to a different cisco router using ethernet on network 192.168.1.0 with ip 192.168.1.1
E1000 directly connects to a switchport using network 192.168.2.0 /24 with ip 192.168.2.1
The switch has a vlan ip on 192.168.1.128 /25?I can ping from R1 to E1000?I can ping from R3 to R1 192.168.2.75? I can't ping from R3 to E1000 192.168.2.1?show ip route on R2 indicates that network 192.168.2.0 is reachable via the serial connection on 192.168.1.12?I have redistributed rip to ospf area 100 and OSPF to RIP on R1?I am wondering why R1 can reach E1000 on network 192.168.2.0, and why R3 can reach R1s 192.168.2.0 newtork, but R3 can't reach the E1000.There is an R2 router than can reach R1 and also cannot reach E1000, but I assume it's for the same reasons R3 can't, so I've omitted the remainder of that topology for this question.
I'm looking to redistribute static routes in to OSPF on a Nexus 7k. To do this I'll be using a route-map with a match statement. My question is can you match routes using an ACL, a prefic-list or both. The reason that I ask is that in some docs I've read it states the following:
IP access lists—(For policy-based routing only). Match based on source or destination IP address, protocol, or QoS parameters. This tends to indicate that you can't use IP access lists for the match criteria for redistribution.
Is there a known bug for Nexus 7K version 6.0(4) related to route redistribution?I have few vlan interfaces and being redistributed to the BGP.vlan interfaces are all up ang pingable.After configuring redistribution, vlan route is not in the bgp table.sho ip bgp is saying "path invalid"
BGP routing table entry for 10.165.101.192/28, version 26302
Paths: (3 available, best #3)
Flags: (0x180c0021) on new-list, is not in urib, need resync with RIB, exported, has label
vpn: version 47719, (0x100002) on xmit-list
local label: 492294
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I have two ospf processes running on a single 3570 edge router that has a dedicated transport circuit back to our network core. We are adding an additional "transport" only circuit into a new location that is also apart of the second ospf process backbone which will connect back to our core. There will also be a 3750 for this new circuit termination. Currently we are only redistributing ospf process 2 into ospf process 1 (1 = core backbone).
#router ospf 1
#redistribute ospf 2 subnet
We have no need to have ospf process 1 redistributed into the process 2 tables. That being said, when we add an additional transport ciruit, or path back to our core backbone, will this configuration present any issues with the redistribution process and failover.
I am wondering what the difference in size of small, medium , large business network would be?Like say is 0 - 50 computers a small network 100 - 1000 a medium size network 1000 > a large network ?cOr are their other factors one most consider?
View 4 Replies View RelatedI keep having pop-ups from my McAfee informing me that an unknown device is attempting or has connected to my network which I don't understand as my wireless router is encrypted with a password. My neighbours aren't likely to be technical enough to break this and the signal isn't exactly strong anyway so is unlikely to reach much further outside, that being said I always mark them as intruders. Now I continuosly get pop ups saying "a device you marked as introduer has connected to your network. Mcafee has blocked the device from accessing your pc". or words to that effect. what's the difference between this 'network' and my internet? I don't really understand what it's saying, I haven't set up any network that I know of... none of my computers are 'linked' so to speak.
View 3 Replies View RelatedOk I didn't setup my OSPF on my 7010. Today I found out that any static route I put into my 7010 gets sent into to my MPLS network. My 6509's you have to "Tag" the static rout for this to happen. Was under the impression the same was necessary for the 7010 or at least it had to "match" an access list. How can I fix the below so that by default all static routes are not resdistributed into OSPF?
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What is the difference between networking and network programming? Is it the same? If no, then does networking involve programming using languages such as c++ and java? Im thinking of doing a networking course and I don't know basics in any computer languages such as C++, Java and stuff. Can the course be done w/o any knowledge of languages I mentioned above whatsoever?
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View 2 Replies View RelatedI have a Dlink DIR-655 router for my wired and wireless router for my home network. I have a 100ft cat6 ethernet cable. I pulled it from the router to my home server in my basement.
Does the 100ft cable make a difference or does the fact that it's a cat6 cable make a difference?
When moving similar files at work, it's faster. So I'm trying to find out what's the bottleneck at home. What speeds should I expect for a home network?
I have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
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AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
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windows 7 won''t go into DOS commands and having problems with network. Often does not get a Local Area Connection, no IP Config, DNS Server Config not responding
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privilege configure level 3 command object,gives me ,ERROR: specified command 'object' not found in any mode.It looks like localy this cannot be done or I am doing something wrong?
we are looking at adding our ASA's to our EIGRP autonomus system. .is it possible to redistribute "routes" which are accessible only from a site to site VPN? I put "routes" in quote marks because the remote networks do not appear in the routing table.BTW the firewalls are running ASA 8.4(2)
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I did some research a couple weeks ago and found a command prompt that "refreshed" all the devices that were connected, but now They are gone again and I cannot remember the command prompt!
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View 2 Replies View RelatedI used to be able to set an uplink port with the interface command "port network" so that it would not learn all the mac addresses that are being flooded down to the switch. It does not seem to be there on the 2950's or 35XX switches.
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When ever I create a network object in ASDM 6.0(3) the UI also wants to send the command 'asdm location (network object IP address)' to the device.What is the purpose of 'asdm locaction ....'? Is it telling the ASA-5540 that the IP address is allowed to connect to the device using ASDM?If that is the case why does 'asdm location xxx.xxx.xxx.xxx'get denerated for every network object I create?
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View 3 Replies View Relatedwhy PPP is being used for data transmission and why IP is being used for Video ?
Cant we send video on PPP ? what problem we would face in this case ?
I gather that Openflow is a type of SDN, but can't find out the differences between the definitions of the two.
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