05-13-2015 06:27 AM - edited 03-11-2019 10:55 PM
I am facing an issue with connectivity between two networks. It seems simple but user is complaining that servers between the VLANs are not communicating (only ICMP is working but nothing else).
I cannot seem to find any issue with the below config. May be anyone can see anything missing. There is no NATTING configured. There are 6 networks that need to communicate with each other except for ICMP. I am showing just two here but it is the same for all.
interface Vlan360
nameif PUB-SERVERS
security-level 40
ip address 100.1.38.97 255.255.255.224 standby 100.1.38.98
!
interface Vlan361
nameif PUB-USERS
security-level 30
ip address 100.1.40.225 255.255.255.224 standby 100.1.40.226
object-group network NETWORKS
network-object 100.1.40.224 255.255.255.224
network-object 100.1.38.96 255.255.255.224
object-group network NETWORKS2
network-object 100.1.40.224 255.255.255.224
network-object 100.1.38.96 255.255.255.224
access-list PUB-SERVERS_IN extended permit ip object-group NETWORKS object-group NETWORKS2
access-list PUB-SERVERS_IN extended permit icmp object-group NETWORKS object-group NETWORKS2
access-list PUB-USERS_IN extended permit ip object-group NETWORKS object-group NETWORKS2
access-list PUB-USERS_IN extended permit icmp object-group NETWORKS object-group NETWORKS2
access-group PUB-SERVERS_IN in interface PUB-SERVERS
access-group PUB-USERS_IN in interface PUB-USERS
same-security-traffic permit inter-interface
same-security-traffic permit intra-interface
05-13-2015 08:25 AM
hi fawad,
can you post the whole config for us to assess further?
thanks.
05-13-2015 12:07 PM
This is pretty much all I have for these two networks. Now does it matter that I have same subnets listed in the object groups for source and destination. Actually I have six subnets that all need to talk to each other. I created two object-group and put all six networks in them but named these object groups differently. I did not see any error message when applying ACL so i assume this was valid.
There is nothing else I have on firewall relevant to these networks. The firewall is working fine otherwise with no issues.
05-13-2015 12:43 PM
Hi
Why do you have both networks in both object-groups? I don't know if it would create a problem, but it doesn't make sence. What you should do instead:
object network PUB-SERVERS subnet 100.1.38.96 255.255.255.224 object network PUB-USERS subnet 100.1.40.224 255.255.255.224 access-list PUB-SERVERS_IN permit ip object PUB-SERVERS object PUB-USERS access-list PUB-SERVERS_IN permit icmp object PUB-SERVERS object PUB-USERS access-list PUB-USERS_IN permit ip object PUB-USERS object PUB-SERVERS access-list PUB-USERS_IN permit icmp object PUB-USERS object PUB-SERVERS access-group PUB-SERVERS_IN in interface PUB-SERVERS access-group PUB-USERS_IN in interface PUB-USERS
When you have changed that, and it still doesn't work, try packet-tracer:
packet-tracer input PUB-USERS tcp 100.1.40.226 45644 100.1.38.96 45 packet-tracer input PUB-SERVERS tcp 100.1.38.96 45644 100.1.40.226 45
And then post the output here.
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