Avatar of leblanc
leblanc
 asked on

no PBR recursive or PBR

From the pic below, I'd like to have PC1 DG as FW2 and PC2 DG as FW1. Now from my understanding, this can be done with PBR recursive configured on vlan40 at sw4 and on the transit vlans between the switches on the ring. But the problem is all of my switches are 3750s and according to Cisco TAC, the 3750s do not support next hop recursive or default next hop. Can this be accomplished without PBR or if I move PC1 subnet to another VLAN, how will I configure to have FW2 as the DG for the new VLAN? Thanks

pic
CiscoNetwork Architecture* Policy Based RoutingSwitches / Hubs

Avatar of undefined
Last Comment
leblanc

8/22/2022 - Mon
Predrag Jovic

The way I see it, you basically have two options:
- use PBR without recursive resolution of next hop
- create separate VLAN for target hosts and extend VLAN through network directly to FW2 and make FW2 default gateway
leblanc

ASKER
Extend VLAN? Does it mean tunnel like L2TPv3 and such?
Predrag Jovic

L2TPv3 - no
If i remember correctly VLAN 200 is already on SW5, just extend it to SW4 (and beyond if needed).
And you can configure PBR with firewall IP 10.100.200.1 as the next hop.
Add vlan 200 (10.100.200.0/24) to SW4 and VLAN trunk between SW4 and SW5, on SW4 create SVI for VLAN 200, assign IP address etc
Then you don't need recursive resolution of next hop, VLAN with that IP addrss range is directly connected.
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23
leblanc

ASKER
Yes. But my links between the switches are routed links. So I don't think I can extend the VLANs.
Predrag Jovic

If you created routed links than, no... you can't do it that way..
But, according to drawing in post link between SW4 and SW5 is done by VLAN 203 (10.10.200.8/30) that's why I thought it is possible to do it that way..
leblanc

ASKER
That vlan203 /30 is the transit vlan that carries EIGRP.
⚡ FREE TRIAL OFFER
Try out a week of full access for free.
Find out why thousands trust the EE community with their toughest problems.
ASKER CERTIFIED SOLUTION
Predrag Jovic

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
GET A PERSONALIZED SOLUTION
Ask your own question & get feedback from real experts
Find out why thousands trust the EE community with their toughest problems.
SOLUTION
Craig Beck

THIS SOLUTION ONLY AVAILABLE TO MEMBERS.
View this solution by signing up for a free trial.
Members can start a 7-Day free trial and enjoy unlimited access to the platform.
See Pricing Options
Start Free Trial
⚡ FREE TRIAL OFFER
Try out a week of full access for free.
Find out why thousands trust the EE community with their toughest problems.
leblanc

ASKER
Thanks for the suggestions. So it looks like I have 2 solutions here. Correct?
- Allow vlan200 (10.100.200.0/24 - FW2) on the trunks between the switches.
OR
- Use proxy-ARP which requires to manually set the DG on the PCs. Right now my PCs get DHCP IP addresses.

Predrag,
Can you explain your static route, ip route 10.10.40.0 0.0.0.127 <SVI_vlan200_on_SW4>? Are u configuring this on sw4?