About Peering, Autodiscovery, In-Path Rules, and Service Ports : About default in-path rules
  
About default in-path rules
Three types of default in-path rules ship with the SteelHead. These default rules pass through certain types of traffic unoptimized. The primary reason that these types of traffic are passed through is because you are likely to use these types of protocols (telnet, SSH, HTTPS) when you deploy and configure your appliances. The autodiscover default rule can be neither edited nor removed.
Default rule
Description and ports
All-IP: Secure
Ports 22, 49, 88, 261, 322, 443, 448, 465, 563, 585, 614, 636, 684, 695, 902, 989-990, 992-995, 1701, 1723, 2252, 2478-2479, 2482, 2484, 2492, 2679, 2762, 2998, 3077-3078, 3183, 3191, 3220, 3269, 3410, 3424, 3471, 3496, 3509, 3529, 3539, 3660-3661, 3713, 3747, 3864, 3885, 3896-3897, 3900, 3995, 4031, 5007, 5061, 5723, 6514, 7674, 8305, 9443, 9802, 11751, 12109, 41017.
This default rule automatically passes traffic through on commonly secure ports (for example, SSH, HTTPS, and SMTPS).
All-IP: Interactive
Ports 77, 23, 37, 107, 179, 513-514, 1494, 1718-1720, 2000-2003, 2427, 2598, 2727, 3389, 5060, 5631, 5900-5903, 6000.
This default rule automatically passes traffic through on interactive ports (for example, Telnet, TCP ECHO, remote logging, and shell).
All-IP: RBT-Proto
Ports 22, 49, 88, 261, 322, 443, 448, 465, 563, 585, 614, 636, 684, 695, 902, 989-990, 992-995, 1701, 1723, 2252, 2478-2479, 2482, 2484, 2492, 2679, 2762, 2998, 3077-3078, 3183, 3191, 3220, 3269, 3410, 3424, 3471, 3496, 3509, 3529, 3539, 3660-3661, 3713, 3747, 3864, 3885, 3896-3897, 3900, 3995, 4031, 5007, 5061, 5723, 6514, 7674, 8305, 9443, 9802, 11751, 12109, 41017.
This default rule automatically passes traffic through on commonly secure ports (for example, SSH, HTTPS, and SMTPS).
We recommend you retain the default rules. You can override default rules by adding custom ones, or by changing the port groups that are used in the default rules.
Commonly excluded ports are: 1503, 1720-1727, 2000, 3230-3253, and 5060.
Uncommon ports include: 261, 448, 684, 695, 994, 2252, 2478, 2479, 2482, 2484, 2492, 2679, 2762, 2998, 3077, 3078, 3183, 3191, 3220, 3269, 3410, 3424, 3471, 3496, 3509, 3529, 3539, 3660, 3661, 3747, 3864, 3885, 3896, 3897, 3995, 4031, 5007, 5061, 7674, 9802, 11751, and 12109.
About Peering, Autodiscovery, In-Path Rules, and Service Ports
About in-path rule settings
Reference: SteelHead Ports