I've got an old Cisco 2811 connected to an old Cisco 4948 L3 Switch. I'm trying to teach myself a little more about L3 Switch implementation. All I'm trying to do at this point is get the router and the switch to pass data back and forth to one another via connected routes. I've not set up any VLAN interfaces on my switch at this point.
Anyway, here's what I've done so far on the L3 switch:
- configured g1/1 with no switchport command to make port a routed port
- configured g1/1 with ip address 10.1.5.1 255.255.255.252 command
- configured g/1/1 with no shutdown command
- enabled ip routing with the ip routing command
One my router I've done the following:
- configured f0/1 with ip address 10.1.5.2 255.255.255.252 command
- configured f0/1 with no shutdown command
On my L3 switch, the show ip route command shows a single connected route to 10.1.5.0. My router likewise show a connected route to 10.1.5.0. Both interfaces are in an up/up state. I erase startup config on both of these devices before attempting this to start from a fresh config, so no ACLs/port-security to speak of either.
What am I doing wrong here? Both the book I am using and the online resource I've viewed seem to make this a fairly simple process, but I can't seem to get it to work. My pings always fail.
SWITCH CONFIG ABBREVIATED:
L3SW#show runversion 15.0!!hostname Switch!!enable secret 5 $1$srhK$ATA3JLvpsMlmDOR3MRLla.!username Andrew secret 5 $1$M8q1$R7mCw0srOjlMkZ2Fnf/Oh.!ip subnet-zero!!power redundancy-mode redundant!vlan internal allocation policy ascending!!interface GigabitEthernet1/1 no switchport ip address 10.1.5.1 255.255.255.252!!interface Vlan1 no ip address!
show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set 10.0.0.0/30 is subnetted, 1 subnetsC 10.1.5.0 is directly connected, GigabitEthernet1/1
Interface IP-Address OK? Method Status ProtocolVlan1 unassigned YES unset down downVlan10 10.1.10.1 YES manual down downFastEthernet1 unassigned YES unset down downGigabitEthernet1/1 10.1.5.1 YES manual up up
show ip int g1/1GigabitEthernet1/1 is up, line protocol is up Internet address is 10.1.5.1/30 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Local Proxy ARP is disabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP Flow switching is disabled IP CEF switching is enabled IP CEF switching turbo vector IP Null turbo vector IP multicast fast switching is enabled IP multicast distributed fast switching is disabled IP route-cache flags are Fast, CEF Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Probe proxy name replies are disabled Policy routing is disabled Network address translation is disabled BGP Policy Mapping is disabled Input features: MCI Check WCCP Redirect outbound is disabled WCCP Redirect inbound is disabled WCCP Redirect exclude is disabled
show ip arpProtocol Address Age (min) Hardware Addr Type InterfaceInternet 10.1.5.1 - 001e.f7ad.0bff ARPA GigabitEthernet1/1
show int g1/1GigabitEthernet1/1 is up, line protocol is up (connected) Hardware is Gigabit Ethernet Port, address is 001e.f7ad.0bff (bia 001e.f7ad.0bff) Internet address is 10.1.5.1/30 MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, link type is auto, media type is 10/100/1000-TX input flow-control is off, output flow-control is off ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:15, output never, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes IPv6 L3 in Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes IPv6 L3 out Switched: ucast: 0 pkt, 0 bytes - mcast: 0 pkt, 0 bytes 1053 packets input, 117356 bytes, 0 no buffer Received 221 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected 265 packets output, 82637 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out
ROUTER CONFIG
R3#show run!version 15.1!hostname Router!!enable secret 5 $1$82m/$ZHiJirn9b4KrvdR.pPOak/!!ip source-route!!ip cef!username Andrew secret 5 $1$JNt6$cTb107naEHNeLx6YTQ2up.!!interface FastEthernet0/1 ip address 10.1.5.2 255.255.255.252 duplex auto speed auto!
show ip routeCodes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP+ - replicated route, % - next hop overrideGateway of last resort is not set 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC 10.1.5.0/30 is directly connected, FastEthernet0/1L 10.1.5.2/32 is directly connected, FastEthernet0/1
FastEthernet0/1 is up, line protocol is up Internet address is 10.1.5.2/30 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Local Proxy ARP is disabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is disabled IP Flow switching is disabled IP CEF switching is enabled IP CEF switching turbo vector IP multicast fast switching is enabled IP multicast distributed fast switching is disabled IP route-cache flags are Fast, CEF Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled RTP/IP header compression is disabled Policy routing is disabled Network address translation is disabled BGP Policy Mapping is disabled Input features: MCI Check WCCP Redirect outbound is disabled WCCP Redirect inbound is disabled WCCP Redirect exclude is disabled
show ip arpProtocol Address Age (min) Hardware Addr Type InterfaceInternet 10.1.5.1 0 Incomplete ARPAInternet 10.1.5.2 - 0025.845d.da09 ARPA FastEthernet0/1
show int f0/1FastEthernet0/1 is up, line protocol is up Hardware is MV96340 Ethernet, address is 0025.845d.da09 (bia 0025.845d.da09) Internet address is 10.1.5.2/30 MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s, 100BaseTX/FX ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:08, output 00:00:04, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 361 packets input, 71268 bytes Received 361 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog 0 input packets with dribble condition detected 1001 packets output, 111588 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 225 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 7 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out
