10-05-2009 07:41 AM - edited 02-21-2020 03:43 AM
Hello there! I'm stuck and need your help please.
I have installed NAC Server (ver 4.5(1). I'm deploying OOB VG. I've connected both CAS and CAM on a 6506 Cisco switch. My problem is that i can reach the CAM but cant reach the CAS.
Below are some configs:
CAS ETH0 IP:10.1.1.250/29
CAS ETH1 IP:10.1.1.251/29
Gateway :10.1.1.249/29
ON CAS:
[root@XX-CAS01 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:1C:C4:10:E8:06
inet addr:10.1.1.250 Bcast:10.1.1.255 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3064 errors:0 dropped:0 overruns:0 frame:0
TX packets:1459 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:326115 (318.4 KiB) TX bytes:93376 (91.1 KiB)
Interrupt:11
[root@xx-CAS01 ~]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
10.1.1.248 0.0.0.0 255.255.255.248 U 0 0 0 fake0
10.1.1.248 0.0.0.0 255.255.255.248 U 0 0 0 fake1
0.0.0.0 10.1.1.249 0.0.0.0 UG 0 0 0 fake0
[root@xx-CAS01 ~]# ping 10.1.1.250
PING 10.1.1.250 (10.1.1.250) 56(84) bytes of data.
64 bytes from 10.1.1.250: icmp_seq=1 ttl=64 time=0.011 ms
64 bytes from 10.1.1.250: icmp_seq=2 ttl=64 time=0.010 ms
64 bytes from 10.1.1.250: icmp_seq=3 ttl=64 time=0.012 ms
But cant ping 10.1.1.249
[root@xx-CAS01 ~]# tracepath 10.1.1.249
1: xx-CAS01 (10.1.1.250) 0.089ms pmtu 1500
1: no reply
2: no reply
ON the Cisco switch
interface GigabitEthernet1/42
description NAC Server Eth0 - Trusted Interface
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 998
switchport trunk allowed vlan 100,101
switchport mode trunk
GigabitEthernet1/42 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0023.334e.c169 (bia 0023.334e.c169)
Description: NAC Server Eth0 - Trusted Interface
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is 10/100/1000BaseT
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:50, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/44/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1000 bits/sec, 3 packets/sec
5 minute output rate 13000 bits/sec, 20 packets/sec
720426 packets input, 46358725 bytes, 0 no buffer
Received 716545 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
4 input errors, 0 CRC, 0 frame, 40 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
5564875 packets output, 462967399 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
6506-02#ping 10.1.1.249
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.249, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
6506-02#ping 10.1.1.250
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.250, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
interface Vlan101
description NAC SERVER
ip address 10.1.1.249 255.255.255.248
interface Vlan100
description NAC-MANAGER
ip address 10.1.1.241 255.255.255.248
Please assist.
regards,
Stanslaus.
10-06-2009 11:53 AM
I manage to resolve the problem. It was a routing problem on my 6500 switch. The server subnet was being routed somewhere else.
10-08-2009 07:39 AM
Hello,
Please note that in VG mode both CAS interfaces have the same IP with VLAN mapping enabled in CAS.
There was a very good Power Point Presentation on Cisco website by Alok Agrawal once upon the time. Don't have a link, but it was cisco NAc Appliance Chalktalk series, maybe you can still find it.
hope it helps a little bit
Dorota
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