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- About dannan lin
08-18-2017
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09-08-2011
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08-14-2015
05:59 AM
thanks for your reply, but i have tried "secondary " keyword , it didn't work out. if use "secondary" command my hsrp looks like this , it stuck at learning state IOU1#show standby br P indicates configured to preempt. | Interface Grp Pri P State Active Standby Virtual IP Vl10 10 100 P Active local unknown 1.1.1.254 Vl10 20 200 P Learn unknown unknown unknown normally it looks like this IOU1#sh standby br P indicates configured to preempt. | Interface Grp Pri P State Active Standby Virtual IP Vl10 10 100 P Active local unknown 1.1.1.254 Vl10 20 200 P Active local unknown 2.2.2.254 the problem is both my PCs can communicate with vlan10 interface on primary and secondary addresses. they just can't reach their virtual addresses.
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08-14-2015
04:56 AM
please i need some help here. I have created a topology like the attachment. I created a secondary address on vlan svi and 2 HSRP groups. i want both PC1 and PC2 can communicate with their virtual gateways. however my attempt failed, can anyone help me out and tell me where i made mistake. configuration on IOU1 as shown below。 IOU1 interface Vlan1 ip address 2.2.2.10 255.255.255.0 secondary ip address 1.1.1.10 255.255.255.0 standby 10 ip 1.1.1.254 standby 10 priority 200 standby 10 preempt standby 20 ip 2.2.2.254 standby 20 priority 200 thanks dan
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01-18-2014
02:55 AM
thanks for your answer. i really didn't expect people to answer 2 years old question but because of people like you we become more intelligent.
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08-21-2012
09:38 AM
hello guys: I'm currently planning a network with a few VLANS. Unfortunatly, I'vegone into somw trouble of solveing this! This is what I got: basic requirements: 1. all vlans are not able to communicating each other. 2. all vlan hosts can access server vlan (the one in the middle) as you could see, the toppology is really simple , i can make building 1 ,2 and 3 into three different vlans and use router-on-stick to connect them to the internet. but i was told there are different offices within each buiding. obviously they don't want communication between offices except servers in the middle. there are 50 offices, by the way. do i really need over 50 vlans to solve this problem? if so, implementing ACL to prevent vlans from communicating each other will be a daunting task for me . can Pvlan help here?
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- Tags:
- vlans
Labels:
08-08-2012
02:28 AM
hi guys : i have following scenario very simple, 4 routers runing ospf , i want to allow PC0 visit web server through the top route and other traffic (i.e. DNS） from bottom route. OSPF at R0 by default is running load balance betweeb R1 and R2, so the packet from pc0 would be sent to R1 abd R2 respectively. i know it can be done by using route map but i am just wondering if it can use simple access-lists to achieve the same goal? have a nice day. any help is appreciated.
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- Tags:
- acl
Labels:
07-09-2012
05:30 AM
hi : thanks for all of your help, i finally got it work. the problem doesn't not appear to be with the configuration. it is something to do with the GN3 equipments i choosen. the L3 switch does not work but Router with additional module works.but i have no idea why was that? again much appreciate all your helps especially cadet, you gave me the hint.
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07-09-2012
04:05 AM
hi pramod: thank for your hint, i will definately try to add another RM to it. i will get back to you if it works. appreciate your help.
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07-09-2012
04:02 AM
hi: karthikeyan, i have added static default route on both R4 and R3. R4: S* 0.0.0.0/0 [1/0] via 10.1.3.1 R3: S* 0.0.0.0/0 [1/0] via 10.1.2.2 it is not work as expected. i am still working on it. thanks for your reply.
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07-09-2012
03:57 AM
hi cadet : i am doing PBR on a L3 switch and cdp disabled. does it matter? thanks for your reply.
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07-08-2012
09:10 PM
thanks for your reply j, i have added the default route at both R3 and R4 , but it didn't work . i have no idea. please help.
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07-08-2012
09:08 PM
thanks for your reply, i think i do have a default route on R3 (0.0.0.0 0.0.0.0 10.1.2..2). i paste my config again hope problem can be soloved. R1 route-map R1(config)#do show route route-map 2R3, permit, sequence 10 Match clauses: ip address (access-lists): office Set clauses: ip next-hop 10.1.2.1 ip next-hop verify-availability Policy routing matches: 5 packets, 570 bytes R1 routing table 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 10.1.3.0/24 is directly connected, Vlan10 C 10.1.2.0/30 is directly connected, FastEthernet0/1 C 10.1.1.0/30 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.1.1.1 R1 access-list Extended IP access list office 10 permit ip 10.1.3.0 0.0.0.255 20.20.20.0 0.0.0.255 (5 matches) R4 routing table Gateway of last resort is 10.1.3.1 to network 0.0.0.0 20.0.0.0/24 is subnetted, 1 subnets S 20.20.20.0 is directly connected, FastEthernet0/0 10.0.0.0/24 is subnetted, 1 subnets C 10.1.3.0 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.1.3.1 R3 routing table R3(config)#do show ip route Gateway of last resort is 10.1.2.2 to network 0.0.0.0 20.0.0.0/24 is subnetted, 1 subnets C 20.20.20.0 is directly connected, Loopback99 10.0.0.0/30 is subnetted, 1 subnets C 10.1.2.0 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.1.2.2 interface FastEthernet1/0 switchport access vlan 10 interface Vlan10 ip address 10.1.3.1 255.255.255.0 ip policy route-map 2R3 I have added the default route at R3 i think the route-map actually worked, the traffic from R4 will be checked by route-map before routing table thus it can reach R3, and R3 has a default route points at R1 and R1 can reach R4 wihtout problems. R3 has default route points at R1as well. everything looks alright to me, but I still cannot make it work. I have been thinking this overnight still no clue. please help. much appreciated.
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07-08-2012
07:24 AM
I have following questions here. When default route is pointed at R2 the traffic source from vlan 10 designated for office1 (20.20.20.0) should be routed to R3 . The f1/0 on R1 is a layer 2 interface, R4 is acting as a PC and its gateway is a SVI address (10.1.3.1) on R1. The routing table on R1 is like this Gateway of last resort is 10.1.1.1 to network 0.0.0.0 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 10.1.3.0/24 is directly connected, Vlan10 C 10.1.2.0/30 is directly connected, FastEthernet0/1 C 10.1.1.0/30 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 [1/0] via 10.1.1.1 Route map on R1 is like this route-map R3, permit, sequence 10 Match clauses: ip address (access-lists): 101 Set clauses: ip next-hop 10.1.2.1 ip next-hop verify-availability Policy routing matches: 150 packets, 10226 bytes Access-list on R1 is like this R1(config)#do show access-list Extended IP access list 101 10 permit ip 10.1.3.0 0.0.0.255 20.20.20.0 0.0.0.255 (153 matches) I also forced local policy ip local policy route-map R3 I applied policy on vlan 10 interface Vlan10 ip address 10.1.3.1 255.255.255.0 ip policy route-map R3 The routing table on R3 is like this Gateway of last resort is 0.0.0.0 to network 0.0.0.0 20.0.0.0/24 is subnetted, 1 subnets C 20.20.20.0 is directly connected, Loopback99 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 10.1.2.0/30 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 is directly connected, FastEthernet0/0 R4’s routing table is like below R4(config)#do show ip route Gateway of last resort is 0.0.0.0 to network 0.0.0.0 20.0.0.0/24 is subnetted, 1 subnets S 20.20.20.0 [1/0] via 10.1.3.1 10.0.0.0/24 is subnetted, 1 subnets C 10.1.3.0 is directly connected, FastEthernet0/0 S* 0.0.0.0/0 is directly connected, FastEthernet0/0 As you can see there are matching clauses, but I couldn’t ping 20.20.20.20 sourced from vlan 10. I do not want to add 20.20.20.0 network into routing table because if I do so the whole routing map thing would be pointless. So I want to know how to reach 20.20.20.0 network without add extra entry into routing table. This question is driving me crazy. Any help is appreciated.
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- Tags:
- route-map
Labels:
08-14-2015
thanks for your reply, but i have tried "secondary " keyword , it didn't
work out. if use "secondary...
08-14-2015
please i need some help here. I have created a topology like the
attachment.I created a secondary ad...
01-18-2014
thanks for your answer. i really didn't expect people to answer 2 years
old question but because of ...
Created by
dannan lin
in Switching
08-21-2012
08-21-2012
hello guys: I'm currently planning a network with a few VLANS.
Unfortunatly, I'vegone into somw trou...
08-08-2012
hi guys :i have following scenariovery simple, 4 routers runing ospf , i
want to allow PC0 visit web...
Created by
dannan lin
in Switching
07-09-2012
07-09-2012
hi : thanks for all of your help, i finally got it work. the problem
doesn't not appear to be with t...
Created by
dannan lin
in Switching
07-09-2012
07-09-2012
hi pramod:thank for your hint, i will definately try to add another RM
to it. i will get back to you...
Created by
dannan lin
in Switching
07-09-2012
07-09-2012
hi: karthikeyan, i have added static default route on both R4 and R3.
R4:S* 0.0.0.0/0 [1/0] via 10.1...
Created by
dannan lin
in Switching
07-09-2012
07-09-2012
hi cadet : i am doing PBR on a L3 switch and cdp disabled. does it
matter? thanks for your reply.
Created by
dannan lin
in Switching
07-08-2012
07-08-2012
thanks for your reply j, i have added the default route at both R3 and
R4 , but it didn't work . i h...
Created by
dannan lin
in Switching
07-08-2012
07-08-2012
thanks for your reply, i think i do have a default route on R3 (0.0.0.0
0.0.0.0 10.1.2..2).i paste m...
Created by
dannan lin
in Switching
07-08-2012
07-08-2012
I have following questions here. When default route is pointed at R2
thetraffic source from vlan 10 ...
Public Statistics
| Date Registered | 09-08-2011 07:33 PM |
| Date Last Visited | 08-18-2017 03:55 AM |
| Total Messages Posted | 105 |
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