So heres the problem. I inherited this network recently and here is a brief overview of the the setup
Problem is randomly machines on the 4th floor keeps loosing access to internet. but i can ping the local gateway and acces any local resources
When i do a packet capture it looks like the ICMP packets to 126.96.36.199 try to go though the sonicwall
206 10.565396000 192.168.1.54 188.8.131.52 ICMP 74 Echo (ping) request id=0x0002, seq=16060/48190, ttl=128 (no response found!)
Ethernet II, Src: Microsof_01:29:15 (00:15:5d:01:29:15), Dst: Sonicwal_7d:b4:ea (c0:ea:e4:7d:b4:ea)
Destination: Sonicwal_7d:b4:ea (c0:ea:e4:7d:b4:ea)
Address: Sonicwal_7d:b4:ea (c0:ea:e4:7d:b4:ea)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
But default gateway for the 4th floor is 192.168.1.1 the ASA 5515.
this is the NAT rule on the SONIC Wall
When you restart the the NIC on the affected PC it starts to work again sometime you need to reboot.
Management is not letting me take the link down during the day.
Im planning on removing the LAN cable and running a fiber to the ASA and routing the 192.168.4.0/24 and 192.168.1.0 from the firewall but i have to wait till next weekend unfortunately
so is there anything i can do for the time being to fix this
Any help would be greatly appreciated