Skip to content

Commit

Permalink
content-update
Browse files Browse the repository at this point in the history
  • Loading branch information
Shanableh committed Jun 1, 2024
1 parent 789211e commit af673fc
Show file tree
Hide file tree
Showing 2 changed files with 37 additions and 7 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -1531,7 +1531,20 @@

??? info "Debugger x32dbg"

Search for string reference the url

![alt text](image-25.png)

We want to set a breakpoint at that address location (F2)
![alt text](image-26.png)

Hit F9 until you see the URL

![alt text](image-27.png)






Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,7 @@

This should take care of multicast storm issues, of course you will need to issue `clear statistics` command after each change and monitor if the changes are actually working or not
![alt text](ICX-s98nsxz-0.png)
![alt text](/Knowledge_Base/images/ICX-s98nsxz-0.png)

After the change

Expand Down Expand Up @@ -180,14 +180,31 @@
wr mem
```

OR
<mark>**OR**</mark>

Create an ACL and assign it

You will need to know what ports are being utilized by the vendor, depending if this is an STB (Set Top Boxes), Chromecast, etc...

|Port(s) | Protocol | Service|
|:-|:-|:-|
|5353 | tcp,udp | Multicast DNS (MDNS) |
| 5353 | udp | Bonjour |
| 1900 | tcp,udp | SSDP, UPnP (Universal PnP) |

Below ACL will block ports 1900 & 5353

```bash
ip access-list extended Filter_mDNS
deny udp any any eq 5353
deny udp any any eq 1900
permit ip any any
```

Below is how you apply the ACL above to a Router ve for a specific VLAN

```bash
ip access-list extended ACL
permit ip 172.17.52.0 0.0.3.255 host 172.17.52.2
deny ip 172.17.52.0 0.0.3.255 host 224.0.0.251
deny udp 172.17.52.0 0.0.3.255 any eq 5353
permit ip any any
#configure the Filter on Interface ve level
interface ve <ve_Number>
ip access-group Filter_mDNS in
```

0 comments on commit af673fc

Please sign in to comment.