it's possible to rewrite mac address?

You can view and manipulate the MAC address information with the LINK command.

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules.LINK

I need to amend my answer. The LINK::nexthop and Link::lasthop values are read-only.

a vlan group in transparent mode would be an option, as would an exception map in your firewall for layer2 inspection, depending on your product.

so, anything to do via iRules?

I don't think there is a way to modify the source MAC address from an iRule.

 

 

Aaron

Hi Jason,

 

 

we have this setup,

 

server > F5 > Router > client

 

 

server originally gateway to Router but we want F5 to be it's gateway, client now unable to reach the servers.

 

What could be the possible problem?

 

 

IP:

 

 

202.126.40.7(server) > 202.126.40.6(F5 floating IP) > Router(202.126.40.3) > 222.126.40.5

 

 

are you using vlangroup which Jason suggested?

Hi Nitass,

 

 

Not yet.

 

We're suspecting that F5 is not broadcasting mac-address of servers on core router:

 

Do you think vlan-group will solve this problem?as per our net admin, we have to use proxy arp on F5.

 

 

sorry i was confused. if you want bigip as server default gateway, i understand server and router should be in different subnet.

 

 

anyway, if you do not want to change subnet (server and router are in the same subnet), you may have to use vlangroup. and server default gateway could still be router.

 

 

Installing a BIG-IP System without Changing the IP Network

 

http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/ltm_implementation/sol_vlans.html1062182

Hi Nitass,

 

 

we want to eliminate snat on inbound traffic that's why we change the server's default gateway to floating ip of F%.