Jon Marshall

Member Since: Sep 22, 2003

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Jon Marshall commented on need suggestion in LAN, Switching and Routing 1 hour ago

You cannot do what you are proposing in your diagram. If you want to use L3 in the access layer...

Jon Marshall commented on BGP behavior / default route in WAN, Routing and Switching 23 hours ago

The default route will only be advertised to the specific neighbor but that neighbor will then...

Jon Marshall commented on need suggestion in LAN, Switching and Routing 23 hours ago

You can only make this work if each access switch uses a different vlan/IP subnet. The problem is...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 23 hours ago

You can just use the new IP block for NAT assuming you are not wanting to assign the public IPs to...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Sam With a static NAT it apples in both directions so you should not need to configure it both ways...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Hi Sam My understanding was that as soon as you create a static NAT that is a permanent entry in...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Can you clarify what you meant about the default route ? Jon

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

When you configure NAT using those IPs the router knows about them and will answer queries for them...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Sam I had a look at the other thread and your answer here as well and I may be misunderstanding but...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Ahh, okay, yes if they do then it is you who is absolutely right :) Guess we'll wait until the OP...

Jon Marshall commented on Resources for best practices on creating primary and secondary core in LAN, Switching and Routing 1 day ago

Not sure I understand the concern. You could simply have the DHCP scope on the existing core switch...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

Georg You don't need to use any secondary IPs for the new block if the ISP is simply routing the...

Jon Marshall commented on Multiple Default Routes, one wan interface, Cisco 2821 Router in LAN, Switching and Routing 1 day ago

If they are routing the new block to you then you do not need to use secondary IPs, just create...

Jon Marshall commented on Configuring IP of untagged VLAN in LAN, Switching and Routing 1 day ago

Should work either so yes you can do it as you suggest. Jon

Jon Marshall commented on No internet access from LAN through 3845 ISR to cable modem in LAN, Switching and Routing 6 days ago

It's not the router that is the problem although yes you will need a default route pointing to the...

Jon Marshall commented on CIDR and subnetting for 181.15.81.145 /20 in LAN, Switching and Routing 6 days ago

John It's not clear what the exact question is but if you are just trying to work out what the...

Jon Marshall commented on No internet access from LAN through 3845 ISR to cable modem in LAN, Switching and Routing 6 days ago

The modem needs a route to the internal subnet and it also needs to be setup to do NAT for that...

Jon Marshall commented on Identity NAT direction from inside to outside in Firewalling 1 week ago

Mahesh No they are not the same because the first statement means the server is on the inside...

Jon Marshall commented on VLANS created on Switch Do not Access Internet in LAN, Switching and Routing 1 week ago

Go into configuration mode (the way you did when you added the route) and then just type in that...

Jon Marshall commented on Help needed with EIGRP Config in LAN, Switching and Routing 2 weeks ago

Bob Presumably the 6500 can ping the server ? If so then can you check the default gateway on the...

Jon Marshall commented on Help needed with EIGRP Config in LAN, Switching and Routing 2 weeks ago

Your EIGRP configuration on the Nexus is wrong. If you are routing between the Admin, Ops and Fleet...

Jon Marshall commented on Native Vlans and traffic in LAN, Switching and Routing 2 weeks ago

It can go to the core switch but on that uplink the traffic will be tagged because it is not the...

Jon Marshall commented on Routing Issues in LAN, Switching and Routing 2 weeks ago

You need to use PBR then if you want to use a different internet connection for that specific PC....

Jon Marshall commented on dynamic BGP route failover in WAN, Routing and Switching 2 weeks ago

I would have thought it would work already. Presumably the client is advertising their local subnet...

Jon Marshall commented on Redistribute OPSF RIP and EIGRP in LAN, Switching and Routing 2 weeks ago

Joe Thanks for those but not sure what the question is that you are asking. I forgot to mention...

Jon Marshall commented on Redistribute OPSF RIP and EIGRP in LAN, Switching and Routing 2 weeks ago

No problem. Usually you can save a diagram of your layout and attach the configurations in text...

Jon Marshall commented on Redistribute OPSF RIP and EIGRP in LAN, Switching and Routing 2 weeks ago

Joe Not all of us have access to the software you are using so if you post configurations and...

Jon Marshall commented on Core Cisco 4006 switch in LAN, Switching and Routing 2 weeks ago

It has been a while since I used one of those switches. Firstly before doing anything save the...

Jon Marshall commented on EIGRP convergence in LAN, Switching and Routing 2 weeks ago

Okay, that makes sense. Jon

Jon Marshall commented on EIGRP convergence in LAN, Switching and Routing 2 weeks ago

If the router(s) with the static default route also have an EIGRP default route in the topology...

Jon Marshall commented on Allow VLANs to access gateway/internet in LAN, Switching and Routing 2 weeks ago

You would need acls on the router interfaces to block traffic between the subnets and allow any...

Jon Marshall commented on EIGRP convergence in LAN, Switching and Routing 2 weeks ago

Steve It's not clear what you are asking. The timers are to do with EIGRP neighbors not route...

Jon Marshall commented on IPSec with 2 internet connections in LAN, Switching and Routing 2 weeks ago

It should definitely be gi0/0/1 you do the NAT overload on. I did a quick test (without IPSEC)...

Jon Marshall commented on ACL in an SVI challenge in LAN, Switching and Routing 2 weeks ago

Can 192.168.20.20 ping 192.168.1.1 ? If it can do you see a hit in acl 102 ? If you do then double...

Jon Marshall commented on IPSec with 2 internet connections in LAN, Switching and Routing 2 weeks ago

Based on the original configuration posted (minus the typos etc.) it should work. You don't need...

Jon Marshall commented on ACL in an SVI challenge in LAN, Switching and Routing 2 weeks ago

Are the PCs connected to this switch ? From 192.168.20.20 can you ping it's gateway ? Jon

Jon Marshall commented on ACL in an SVI challenge in LAN, Switching and Routing 2 weeks ago

Can you also make sure you have disabled any firewall on the PCs. Jon

Jon Marshall commented on ACL in an SVI challenge in LAN, Switching and Routing 2 weeks ago

That should have done it. When you ping from 192.168.20.20 do you see any hits in acl 102 ? Can you...

Jon Marshall commented on ACL in an SVI challenge in LAN, Switching and Routing 2 weeks ago

"access-list 102 permit ip 192.168.20.0 0.0.0.255 192.168.1.0 0.0.0.255" Jon

Jon Marshall commented on IPSec with 2 internet connections in LAN, Switching and Routing 2 weeks ago

Why have your static routes got an AD at the end ? And unless it is a typo your route for 192.168.2...

Jon Marshall commented on OSPF State Confusion in WAN, Routing and Switching 2 weeks ago

It is the other router that is the DR. Not sure what R2 being the DR or not has to do with point to...

Jon Marshall commented on OSPF State Confusion in WAN, Routing and Switching 2 weeks ago

No problem, I think I have probably confused the issue. So with an OSPF network type of point to...

Jon Marshall commented on OSPF State Confusion in WAN, Routing and Switching 2 weeks ago

I am now you have said the neighbor is Router 1 (you didn't say in your original post :)) The point...

Jon Marshall commented on Routing Issues in LAN, Switching and Routing 2 weeks ago

You would normally have a default route on R2 pointing to R3 and then each router will also need to...

Jon Marshall commented on Routing Issues in LAN, Switching and Routing 2 weeks ago

Why does R2 have a route for the PC pointing to R3 because that is not how to reach the PC. Can you...

Jon Marshall commented on HSRP in LAN, Switching and Routing 2 weeks ago

On the active router in Branch 1 you do not have a route for 192.168.3.0/24 so I suspect you have a...

Jon Marshall commented on HSRP in LAN, Switching and Routing 2 weeks ago

Please post from both routers in Branch 1 - "sh ip route 192.168.3.0 255.255.255.0" Jon

Jon Marshall commented on Resources for best practices on creating primary and secondary core in LAN, Switching and Routing 2 weeks ago

Then HSRP may well be your best option although it could mean a lot of going back and forth between...

Jon Marshall commented on HSRP in LAN, Switching and Routing 2 weeks ago

It should make no difference whether the router is active or standby as long as it has routes to...

Jon Marshall commented on Route Change on Distant Link Failure in WAN, Routing and Switching 2 weeks ago

Mark That is the primary route so it should have no AD added as far as I can tell. Jon

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Jon Marshall's Stats

Points35285
Discussion started 53
Answers marked as Correct 3823
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Content Rated 601