nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Okay, now this is just making me fee dumb!

fonestar1978

We have an old 2600 and 3600 at our company we are using for a test lab. The 3600 has no FastEthernet NM so I have to connect it to the 2600 via V.35 cable.

I wanted to put newer images on the router that have k9 crypto.. simple enough I thought:

|3600|>---serial on 10.10.10.0/24--->|2600|---cross-over-on-192.168.100.0/24-->|PC|

So I have a default route set on the 3600 to the s0/0 on the 2600: "ip route 0.0.0.0 0.0.0.0 10.10.10.2" and it can ping the fa0/0 address of the 2600 too, 192.168.100.105 but not the PC's address of 192.168.100.115.

It really doesn't get any simpler than this. PC can ping all IP's as can the 2600 but the 3600 cannot ping the PC! I have done the EXACT same network in Packet Tracer the EXACT same way and it works fine! You don't even need a routing protocol as they are just directly connected nets with a static on the 3600!

Please help me figure this out as it is making me feel dumb!

Find more posts tagged with

SAVE $250 on Your CISCO Boot Camp — Use Code "EXAM26"

Exclusively for TechExams members for Infosec Boot Camps starting before April 30, 2026

View CISCO Boot Camps

Comments

networker050184

Firewall on PC?

fonestar1978

networker050184 wrote: »

Firewall on PC?

disabled!

chmorin

Traceroute from the 3600/how far can it ping en route to the PC.

mikej412

Can the PC ping it's default gateway?

chmorin

mikej412 wrote: »

Can the PC ping it's default gateway?

Shazbot, also a good question. Good place to start when testing connectivity.

fonestar1978

chmorin wrote: »

Shazbot, also a good question. Good place to start when testing connectivity.

looks like it was a problem with the Realtek Gigabit driver on my work computer, upgraded and it works fine.

Guess it's like Cisco says, start at Layer 1 and work up.....

chmorin

fonestar1978 wrote: »

looks like it was a problem with the Realtek Gigabit driver on my work computer, upgraded and it works fine.

Guess it's like Cisco says, start at Layer 1 and work up.....

Well that wasn't technically a layer 1 problem. But yeah, you're right.