1 00:00:12,510 --> 00:00:27,650 So interface VLAN 100 stand by 1 IP 10.1.100.254, stand by 1 priority 200, standby 1 preemption. 2 00:00:29,700 --> 00:00:42,720 So looking at core 2 show run shows us that this is the configuration on VLAN 100 and the switch has become 3 00:00:42,720 --> 00:00:43,620 the active router. 4 00:00:46,980 --> 00:00:49,150 On core 1 we're going to do something similar. 5 00:00:50,190 --> 00:00:55,980 Standby 1 IP 10.1.100.254 6 00:00:58,080 --> 00:00:58,710 show 7 00:00:58,950 --> 00:01:08,330 standby still listening at the moment, but after a while, that should go to active. 8 00:01:08,340 --> 00:01:14,700 It's now speaking, in other words, sending out HSRP messages and notice it's now gone to stand by. 9 00:01:15,480 --> 00:01:23,070 So show standby on VLAN 100, the local router is in standby mode, 10 00:01:23,490 --> 00:01:27,930 active router is core 2 again local 11 00:01:27,930 --> 00:01:29,640 router is standby. 12 00:01:31,760 --> 00:01:37,070 Now the last VLAN to configure and one not to forget is VLAN 1. 13 00:01:38,700 --> 00:01:46,020 Don't forget to configure VLAN 1, because your layer 2 switch is here at the access layer also 14 00:01:46,020 --> 00:01:47,250 need a default gateway. 15 00:01:48,420 --> 00:01:59,710 Show spanning-tree VLAN 1 local switch is the root, so we want to configure it as the HSRP primary. 16 00:01:59,760 --> 00:02:08,160 So standby 1 IP 10.1.1.254, standby 1 priority 17 00:02:09,199 --> 00:02:12,980 200 standby 1 preemption. 18 00:02:15,390 --> 00:02:16,350 So show run 19 00:02:17,340 --> 00:02:22,920 and we'll look at VLAN 1, that's the configuration. 20 00:02:25,490 --> 00:02:33,140 Configure core 2 interface VLAN 1 standby 1 IP 10.1.1.254. 21 00:02:35,000 --> 00:02:43,070 We can see that core 1 has become the active router for VLAN 1, so show standby 22 00:02:45,770 --> 00:02:48,700 for VLAN 1 core 1 is the active router. 23 00:02:49,610 --> 00:02:53,260 Same for VLAN 10, same for VLAN 30 24 00:02:54,800 --> 00:03:04,900 its standby for VLAN 100 and its standby for VLAN 20 on the side show 25 00:03:04,910 --> 00:03:05,690 standby 26 00:03:07,350 --> 00:03:15,040 VLAN 1 it's the standby router, standby for VLAN 10, it's active for VLAN 20 27 00:03:15,970 --> 00:03:17,770 standby for VLAN 30 28 00:03:18,760 --> 00:03:21,190 active for VLAN 100, 29 00:03:22,180 --> 00:03:22,910 so that's good. 30 00:03:22,930 --> 00:03:29,590 I think we've configured HSRP successfully on our core switches. 31 00:03:30,070 --> 00:03:32,320 Now we need to configure default gateways. 32 00:03:33,720 --> 00:03:45,390 So we've already configured PC 1 to use 10.1.10.254 as the default gateway, let's configure PC 2. 33 00:03:47,160 --> 00:03:48,960 So config on PC 2 34 00:03:52,950 --> 00:04:03,840 gateway will be 10.1.20.254 DNS server will be google, IP address will be 10.1.20.10 35 00:04:06,910 --> 00:04:13,750 /24 mask. So that's the IP address we need to use 10.1.20.10. 36 00:04:17,070 --> 00:04:26,250 Go to desktop command prompt IP config shows us that information can it ping its default gateway? 37 00:04:26,280 --> 00:04:27,120 Yes, it can. 38 00:04:28,080 --> 00:04:30,030 Can the PC ping 39 00:04:31,430 --> 00:04:32,510 PC 1? 40 00:04:36,480 --> 00:04:44,550 OK, so there you go, just took a bit of time, but notice now, PC 2 can ping PC 1. So back on 41 00:04:44,550 --> 00:04:45,330 PC 1 42 00:04:47,540 --> 00:04:50,180 can it ping PC 2? 43 00:04:50,540 --> 00:04:51,350 Yes, it can. 44 00:04:53,720 --> 00:05:02,480 Notice, if we look at the ARP cache we don't see a Mac address for PC 2 because to get to PC 2 traffic 45 00:05:02,480 --> 00:05:07,250 is going via the default gateway, which is the HSRP router 46 00:05:10,250 --> 00:05:13,370 and the same is true on PC 2. 47 00:05:15,880 --> 00:05:25,090 We need to configure PC 3, so gateway is going to be 10.1.30.254 DNS server is Google 48 00:05:27,630 --> 00:05:32,310 IP address will be 10.1.30.10/24 mask 49 00:05:34,470 --> 00:05:35,460 as shown here 50 00:05:38,340 --> 00:05:44,850 desktop command prompt IP config, that looks good. 51 00:05:46,540 --> 00:05:50,480 Can we ping PC 1? 52 00:05:50,830 --> 00:05:55,150 Yes, we can, can we ping PC 2? 53 00:05:56,320 --> 00:05:57,100 Yes, we can. 54 00:05:58,150 --> 00:05:59,250 So that looks great. 55 00:05:59,980 --> 00:06:03,210 But notice we won't be able to ping all switches. 56 00:06:03,940 --> 00:06:06,040 Why can't we ping the switch 57 00:06:09,250 --> 00:06:11,470 if we run a debug on that switch? 58 00:06:15,800 --> 00:06:24,440 So use the come on, debug IP ICMP, we should be able to see if traffic arrives after that switch and 59 00:06:24,440 --> 00:06:30,920 notice you can see it arriving so the ping gets to the switch, but it doesn't get back again 60 00:06:31,760 --> 00:06:36,950 and that's because we need to configure a default gateway on the switch. 61 00:06:39,690 --> 00:06:47,730 And to do that, we use the command IP default gateway and we specify our default gateway, which is 62 00:06:47,730 --> 00:06:56,340 the HSRP router, and now you can see that pings are succeeding. So I'll turn off debugging here 63 00:06:57,850 --> 00:07:05,860 command is un-all to turn off debugging, save the config while we're there and notice PC 3 can ping switch 64 00:07:05,860 --> 00:07:15,520 1 but can't ping switch 2 this switch here because again, we need to configure a default gateway. 65 00:07:18,340 --> 00:07:20,170 So show IP interface 66 00:07:20,290 --> 00:07:29,710 brief IP address is 10.1.1.2 show IP route shows us that we don't have a default gateway. 67 00:07:30,490 --> 00:07:33,040 So IP default gateway 68 00:07:34,670 --> 00:07:36,440 10.1.1.254 69 00:07:39,050 --> 00:07:45,720 show IP route default gateway is now configured. So back on PC3 70 00:07:46,630 --> 00:07:50,240 hopefully we should be able to ping switch 2 which we can. 71 00:07:50,750 --> 00:07:52,000 Pings are now succeeding. 72 00:07:54,800 --> 00:07:56,090 We need to do something similar 73 00:07:59,150 --> 00:08:05,600 on switch 3, access switch 3 IP default gateway 74 00:08:11,670 --> 00:08:13,980 10.1.1.254 75 00:08:16,530 --> 00:08:23,760 show IP route shows us that we do have a default gateway configured, I'll save the configuration. 76 00:08:25,210 --> 00:08:29,140 So on PC 3 can we ping access 3? 77 00:08:32,169 --> 00:08:40,870 Took a while, but the answer is yes, we can now ping access 3. Can we ping the server, which 78 00:08:40,870 --> 00:08:43,450 has IP address 10.100.100? 79 00:08:45,060 --> 00:08:47,430 Answer is no, because we need to configure the server. 80 00:08:53,170 --> 00:09:02,350 So on the server default gateway will be 10.1.100.254 we'll set to the DNS server to Google, 81 00:09:04,670 --> 00:09:09,740 IP address will be 10.1.100.100/24 mask. 82 00:09:12,240 --> 00:09:20,740 Open up a CMD prompt or command prompt IP config shows us the IP address of the server. 83 00:09:21,300 --> 00:09:23,730 Can it ping PC 1? 84 00:09:26,350 --> 00:09:27,220 Yes, it can. 85 00:09:28,090 --> 00:09:29,950 What about PC 2? 86 00:09:30,370 --> 00:09:31,270 Yes, it can. 87 00:09:31,870 --> 00:09:33,370 What about PC three? 88 00:09:33,550 --> 00:09:34,460 Yes, it can. 89 00:09:35,350 --> 00:09:38,020 Can the PC ping the server? 90 00:09:39,370 --> 00:09:41,530 Yes, PC 3 can ping the server. 91 00:09:42,340 --> 00:09:44,020 What about PC 2? 92 00:09:46,760 --> 00:09:47,600 Yes, it can. 93 00:09:48,440 --> 00:09:50,000 What about PC 1? 94 00:09:52,260 --> 00:09:53,040 Yes, it can. 95 00:09:54,570 --> 00:10:02,220 So we've successfully configured IP connectivity in the campus, we've configured HSRP, but we still 96 00:10:02,220 --> 00:10:08,700 need to do, however, is configure EIGRP on the core router and on the ISR.