12-13-2011 07:49 AM - edited 03-11-2019 03:01 PM
Hi All,
I have an issue that's giving me fits. I have an ASA 5505 that I'm trying to set up a guest network on. I've configured an interface as a trunk and allowed the 2 vlans but I'm not getting any layer 3 to it. The switch connected to it is a 3560 and port is configured as a trunk with the same vlans.
I can't ping the ASA inside interface but I see its MAC address in the swtich's table.
I've got to be missing something.
Licensed features for this platform:
Maximum Physical Interfaces : 8
VLANs : 20, DMZ Unrestricted
Inside Hosts : Unlimited
Failover : Active/Standby
VPN-DES : Enabled
VPN-3DES-AES : Enabled
VPN Peers : 25
WebVPN Peers : 2
Dual ISPs : Enabled
VLAN Trunk Ports : 8
This platform has an ASA 5505 Security Plus license.
Config
ASA Version 7.2(3)
!
hostname ARLASA01
names
!
interface Vlan1
nameif inside
security-level 100
ip address 172.29.60.220 255.255.255.0
!
interface Vlan2
nameif outside
security-level 0
ip address x.x.x.x 255.255.255.248
!
interface Vlan198
nameif guest
security-level 50
ip address 192.168.60.220 255.255.255.0
!
interface Ethernet0/0
switchport access vlan 2
!
interface Ethernet0/1
switchport trunk allowed vlan 1,198
switchport mode trunk
speed 100
duplex full
!
interface Ethernet0/2
!
interface Ethernet0/3
!
interface Ethernet0/4
!
interface Ethernet0/5
!
interface Ethernet0/6
!
interface Ethernet0/7
!
ftp mode passive
pager lines 24
logging asdm informational
mtu inside 1500
mtu outside 1500
mtu guest 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-523.bin
no asdm history enable
arp timeout 14400
global (outside) 1 interface
nat (inside) 1 172.29.60.0 255.255.255.0
route inside 172.27.0.0 255.255.0.0 172.29.60.222 1
route outside 0.0.0.0 0.0.0.0 x.x.x.x 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout uauth 0:05:00 absolute
aaa authentication ssh console LOCAL
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart
telnet 0.0.0.0 0.0.0.0 inside
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 outside
ssh timeout 5
console timeout 0
!
class-map inspection_default
match default-inspection-traffic
!
!
policy-map type inspect dns preset_dns_map
parameters
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
!
service-policy global_policy global
username comms password eiE0IOA.TSSAU935 encrypted
prompt hostname context
Cryptochecksum:551464bc59e861c2c347731b3b4479b7
Any help would be appreciated.
12-13-2011 10:00 AM
Hi Mark,
You are trying to pass a native vlan in the trunk port, which is not going to work, as the packets for a native vlan are passed as untagged packets.
Create another unused vlan to pass the traffic for the native vlan and then you would need to add the following config:
Lets say you create another vlan 10, then :
interface Vlan10
nameif inside
security-level 100
ip address 172.29.60.220 255.255.255.0
interface Ethernet0/1
switchport trunk allowed vlan 10,198
switchport mode trunk
switchport trunk native vlan 1
speed 100
duplex full
and it should work after this.
Hope that helps.
Thanks,
Varun
12-13-2011 10:26 AM
Hi Varun,
Thanks for the reply. I was afraid of something like that. I see that
there isn't a native vlan command in this IOS though the documentation says
there is.
So if I do this I would need to place all the users currently on vlan 1
onto vlan 10, correct?
Regards,
Mark Davis
Telecom Consultant
American Bureau of Shipping
281.877.6434
From: varrao
To: markedavis
Date: 12/13/2011 12:00 PM
12-13-2011 10:29 AM
Yes, thats correct. Let me know once you try this.
Thanks,
Varun
12-13-2011 10:31 AM
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